673 results about "Heteroatom" patented technology

The invention provides a preparation method for preparing porous carbon based on an aerogel method, the porous carbon and application of the porous carbon, and belongs to the technical field of porous carbon material preparation. The preparation method comprises the following steps: mixing polyhydroxy phenol, aromatic aldehyde, acrylamide, graphene oxide and lithium salt according to a mass ratio of 100: (50-200): (5-30): (1-5): (1-5), carrying out hydrothermal reaction at 100-200 DEG C for 1-6 hours, and freeze-drying at-40 DEG C to obtain a hydrogel precursor; and carbonizing the precursor in organic heteroatom gas at 500-800 DEG C, mixing the intermediate with alkali according to the ratio of 100: (100-500), activating at 900-1100 DEG C, pickling and drying to obtain the porous carbon. The conductivity of the product is improved by means of graphene, lithium salt and heteroatoms, and the aerogel method obtains large aperture, has the characteristics of low impedance, high first efficiency and small charge-discharge expansion, and can be efficiently applied to silicon-carbon materials.

The invention discloses a hydrogen energy fuel cell catalyst carrier based on a graphene graft polymer, which is characterized in that two-dimensional graphene is used as a substrate, the surface of the two-dimensional graphene is modified with an oxygen-containing functional group, and a functional polymer branch chain containing nitrogen, sulfur or phosphorus heteroatoms is covalently grafted to form a local three-dimensional network winding structure; the carrier is loaded with platinum, palladium, ruthenium and other metal or alloy nanoparticles, the particle size is 2-8 nm, the loading capacity is 10%-40%, and the particles are anchored to polymer functional sites or reduced in situ to a graphene defect area through coordination. A polymer branch chain has pH responsiveness and can adjust the local proton transmission efficiency; the grafting density is 3-15 grafting points per 100 carbon atoms, so that high dispersion and stable anchoring of metal particles are effectively realized; the specific surface area of the carrier is 400-800m < 2 > / g, the electrochemical active area is not less than 80m < 2 > / g, and the activity retention rate is greater than 80% after 5000 circles of accelerated durability tests. The activity, the stability and the proton conduction performance of the catalyst are remarkably improved, and the catalyst is suitable for high-performance fuel cells.

The invention discloses a preparation method of phosphorus-doped and closed-pore synergistically regulated biomass hard carbon and application of the phosphorus-doped and closed-pore synergistically regulated biomass hard carbon in a negative electrode of a sodium-ion battery, and belongs to the technical field of electrode materials. The preparation method comprises the following steps: preparing a water-based starch suspension with a certain mass fraction by taking starch as a biomass precursor, carrying out a cross-linking reaction through sodium trimetaphosphate to form a phosphate ester bond bridged stable network structure, pre-oxidizing the cross-linked precursor, and then carbonizing in a high-temperature inert atmosphere to obtain the water-based starch composite material. And the hard carbon material with expanded interlayer spacing, phosphorus doping and high closed pore volume is prepared. The material shows high reversible capacity, high initial coulombic efficiency, excellent rate capability and cycling stability when being used as a sodium-ion battery negative electrode active material. According to the preparation method disclosed by the invention, through a simple cross-linking-carbonizing process, cooperative regulation and control of heteroatom doping and a closed-pore structure are realized, and a new strategy is provided for large-scale preparation of the high-performance biomass hard carbon negative electrode.

Organotin compositions having the formula RSnL3 and corresponding synthetic methods are described. R includes aromatic, cyclic and / or halogenated ether moieties, or polyethers, and L includes hydrolysable groups. The organotin compositions may be formed as radiation-patternable coatings on substrates. The coatings may have an average thickness from about 1 nm to about 75 nm and have the formula RSnOn(OH)3-2n, forming an oxo-hydroxo network, where R is a hydrocarbyl ether group with 1 to 30 carbon atoms and 0<n<3 / 2, wherein regions of the coating are soluble in 2-heptanone in a puddle development step following a bake at 150° C. for 120 seconds. The coatings may be radiation-patternable using UV, EUV or ion beam radiation, and corresponding methods are described.

The invention discloses a multi-target joint optimized antibiotic molecule design system and method applied to the field of biological medicine, and the method comprises the steps: obtaining FabI enzyme and AcrAB-TolC efflux pump structure data, extracting double-target space and physicochemical characteristics, and constructing a joint pharmacophore model containing a FabI inhibition domain and an efflux pump blocking domain; screening candidate molecules meeting a double-domain space matching threshold, screening high-affinity double-target molecules through conformation sampling and free energy calculation, and forming a lead compound library through multi-layer filtration of metabolic stability, membrane penetrability, quantum chemical properties and synthesis feasibility; carrying out electron effect, chain length or heteroatom fine tuning on dominant molecules through in-vitro bacteriostasis and efflux inhibition experiment feedback, and carrying out iterative optimization until MIClt is met; 2 [mu] g / mL and the efflux inhibition rate is gt; according to the present invention, the antibacterial effect and the drug resistance inhibition ability are significantly improved, the molecular synthesizability and the biological safety are ensured, and the engineering design new path is provided for the Gram-negative bacterium drug resistance crisis.

The invention relates to the field of batteries, in particular to a solid electrolyte, a preparation method of the solid electrolyte, a battery, a battery assembly and an electric device. The coating layer is arranged on the surface of the solid electrolyte main body, the coating layer contains a coating agent, the coating agent contains hydrophobic groups and heteroatom groups, and heteroatoms in the heteroatom groups comprise at least one of N, P, S and O. The solid electrolyte has excellent air stability.

The invention relates to the technical field of preparation of positive electrode materials, and discloses a method for preparing a lithium iron phosphate positive electrode material from an atom-doped carbon coating layer, in particular to a method for preparing a lithium iron phosphate positive electrode material from the carbon coating layer on the surface of the lithium iron phosphate positive electrode material containing a plurality of heteroatoms M, and the molecular formula of the heteroatoms M is LiFePO4 / C (at) M. The preparation method comprises the steps of grinding twice and sintering, the structure of the carbon material is adjusted by utilizing the synergistic coupling characteristic of doped atoms, and the high electron mobility and ion mobility of the lithium iron phosphate positive electrode material are enhanced. The prepared positive electrode material has excellent electrochemical performance, and the charge-discharge specific capacity and the rate capability are improved.

The invention discloses nitrogen-doped carbon quantum dots derived from American cockroach dregs as well as a preparation method and application of the nitrogen-doped carbon quantum dots, and belongs to the technical field of nitrogen-doped carbon quantum dots. The nitrogen-doped carbon quantum dots are prepared from the American cockroach dregs by a one-step hydrothermal method, optimal synthesis parameters are obtained through experimental optimization of synthesis conditions, and the prepared nitrogen-doped carbon quantum dots have excellent optical characteristics and stability; the invention also provides an application of the nitrogen-doped carbon quantum dot in Ag < + > detection, the nitrogen-doped carbon quantum dot has good selectivity, sensitivity and anti-interference performance on Ag < + >, a detection mechanism is an internal filtering effect and light-induced electron transfer, and the nitrogen-doped carbon quantum dot can be used as a preferred fluorescent material of an Ag < + > fluorescent sensor. The nitrogen-doped carbon quantum dots synthesized by the method not only have an Ag < + > sensing function, but also realize high-valued utilization of medicine residues, and also provide a new thought for self-doping of heteroatoms.

The invention discloses a covalently bridged bicontinuous hard carbon negative electrode material and a preparation method and application thereof, and belongs to the field of electrochemical energy storage materials. According to the method, the limitation of a biomass hard carbon long-range disordered structure is broken through through a template-self-assembly-reconstruction three-section reaction, atomic-scale synergy of electrons and ions is realized in a hard carbon matrix, and in-situ mechanical interlocking and chemical bridging between heteroatom doped carbon dots and a hard carbon matrix graphite domain are enhanced by utilizing the design of a precursor; topological reconstruction of a carbon skeleton is triggered through pickling purification and a high-temperature carbonization process, and accurate fusion of C-C covalent bonds is realized. The graphitized nano domain grown in the process provides a rapid transmission channel for electrons, generated topological defects and heteroatoms provide a rapid transmission channel for adsorption and surface migration of sodium ions, and the prepared material shows excellent reversible capacity, first coulombic efficiency and rate capability.

The present disclosure provides a liquid cryoprotectant having a lactam moiety structure of wherein the lactam having at least one hydroxyl functional group; wherein Y is an alkylene or alkenylene group comprising 2 to 50 carbon atoms; wherein 2 to 4 carbon atoms reside in the lactam ring between the I group and the II group; Q is selected from the group consisting of functionalized and unfunctionalized alkylenes of linear, branched, or cyclic structure, rylenes, and combinations thereof, wherein the aforementioned groups may or may not contain oxygen atom(s); and R is selected from the group consisting of hydrogen and functionalized and unfunctionalized alkyl, cycloalkyl, alkenyl, and aryl groups, wherein the alkyl, cycloalkyl, alkenyl, and aryl groups may or may not contain heteroatoms. The present disclosure also provides a composition for cryopreservation having a lactam moiety structure.

The invention relates to the technical field of waste plastic resource utilization, and particularly provides a method for preparing glycollic acid through high-selectivity photoelectrocatalytic oxidation of polyethylene glycol terephthalate (PET) plastic. The core of the method is that a carbon nitride film loaded and modified by heteroatom doping (sulfur / phosphorus and the like) and an oxidation co-catalyst (Ni (OH) 2, NiFeOOH and the like) is used as a photo-anode, and under the conditions of certain bias voltage, electrolyte pH and composition and light source wavelength, PET oxidation is guided to generate glycolic acid with high selectivity. According to the method, efficient conversion from the PET waste plastics to high-value chemicals is achieved, the Faraday efficiency of glycollic acid in the product can reach 75% or above, and an innovative technical path is provided for plastic pollution abatement and waste turning into wealth.

The present invention relates to a bismuth-containing catalyst of formula (R1)2-(R2)-(Bi)3+ (I), wherein (R1)2- is a dianion of formula (II*), wherein A is unsubstituted or at least monosubstituted linear C3-30-alkylene, wherein at least two not adjacent CH2 groups of C3-30-alkylene are replaced by a heteroatom independently selected from the group consisting of O, S, 5 NH, N-C1-30-alkyl, N-C6-14-aryl and N-C7-30-aralkyl, wherein alkyl and aryl fragments of N-C1-30-alkyl, N-C6-14-aryl, N-C7-30-aralkyl may at least be monosubstituted by hydroxyl, halogen, -CF3, NH2, -NH-C1-6-alkyl, -NH- phenyl, -N(C1-6-alkyl)2, -N(phenyl)2, -SH, -S-C1-6-alkyl, -S-phenyl, -O-C1-6-alkyl or -O-phenyl, to process for the preparation of the bismuth containing catalyst, to a process for the preparation of a compound, oligomer or polymer comprising at least one urethane group using the bismuth-containing catalyst, to a composition comprising (i) at least one monoalcohol (B1) or polyol (B2), (ii) at least one polyisocyanate (A) and (iii) the bismuth-containing catalyst, to a coating or adhesive layer formed from the composition on a substrate, to a foam formed from the composition, and to the use of the bismuth-containing catalyst in for preparing compounds, oligomers or polymers comprising a urethane group, as esterification and transesterification catalyst and as catalyst for ring-opening polymerizations of lactones and epoxides.

This invention discloses a weather-resistant, high-hardness composite anti-corrosion coating and its preparation method, belonging to the field of anti-corrosion coating technology. The preparation method includes: firstly, synthesizing an epoxy resin containing dynamic disulfide bonds by reacting dithiodibenzoic acid and epichlorohydrin in an alkaline aqueous phase; secondly, constructing a low surface energy siloxane network using hydroxyl-terminated polydimethylsiloxane and methyltriethoxysilane; subsequently, introducing chlorzoxazone and N-acetyl-p-aminophenol as composite organic corrosion inhibitors, blending them with the resin to obtain a composite base material; finally, adding graphene, carbon nanotubes, and inorganic anti-corrosion fillers, and cross-linking and curing to form a film using a polyamine curing agent. This invention suppresses microcracks through the dynamic stress relief of disulfide bonds, combined with the weather-resistant barrier of the siloxane network, the active interface passivation of the heteroatom corrosion inhibitor, and the three-dimensional synergistic mechanical bonding of carbon-based nanomaterials, achieving a perfect unity of ultra-strong corrosion resistance, excellent weather resistance, and high mechanical hardness in the coating.

The application discloses a fused benzothiadiazole derivative, a preparation method thereof, a hole transport material, a hole transport layer and a perovskite battery, and belongs to the technical field of battery materials.The fused benzothiadiazole derivative can be applied as a hole transport material, contains a fused benzothiadiazole unit in a mother nucleus, has a large conjugate core, and has a D-A-D type molecular structure, so that the intermolecular interaction can be strengthened, and the extraction of holes can be promoted.In addition, the fused benzothiadiazole derivative also contains a phosphate group, so that a self-assembled monolayer can be formed in the form of a bidentate bond or a tridentate bond on a transparent conductive glass to improve the contact between the hole transport layer and an ITO interface.Further, the fused benzothiadiazole derivative also contains rich heteroatoms such as sulfur, nitrogen and oxygen, can be used as a Lewis base to passivate free lead iodine ions at the interface, so that the loss caused by charge recombination can be reduced, and the performance of an inverted perovskite solar cell can be improved.

The invention discloses a method for synthesizing a sulfur-containing compound by using an amino sulfur trifluoride compound, which comprises the following two steps: S1, by taking the amino sulfur trifluoride compound and a compound A as reactants, stirring and reacting for 8-15 minutes or 10-15 hours at normal temperature in an organic solvent under an alkaline condition; the compound A is any one of an amide compound or a sulfanilamide compound, or water; and S2, adding a nucleophilic reagent into the solution after the reaction in the step S1, stirring at normal temperature to react for 8-15 minutes or 5-8 hours, and then purifying through a rapid chromatography to obtain a final product, namely, all-heteroatom substituted thioimine or all-heteroatom substituted sulfoxide, the nucleophilic reagent is an alcohol or an amine. According to the method disclosed by the invention, the amido sulfur trifluoride compound is used for synthesizing the asymmetric full heteroatom substituted thioimine and sulfoxide compound for the first time, the reaction steps are simple, the reaction conditions are mild, and expensive reagents are not needed.

A lens includes an optical polymer represented by:where R1 to R3 are each independently hydrogen, deuterium, halogen, or organic group comprising any one selected from substituted or unsubstituted C1-C60 alkyl group, substituted or unsubstituted C3-C60 cycloalkyl group, substituted or unsubstituted C1-C60 alkoxy group, substituted or unsubstituted C6-C60 aryl group, and substituted or unsubstituted C2-C60 heteroaryl group having at least one hetero atom selected from group consisting of N, O, and S, A1 is a single bond, an oxygen atom, or a sulfur atom, A2 is an oxygen atom or sulfur atom, B1 and B2 are each independently a single bond or an organic group represented by -al-D-al-, and n represents an integer of 5 or more and 500 or less, where al is a C1-C8 alkylene group, and D is —S(═O)2—X—, —X—S(═O)2—, —S(═O)2—X—S(═O)2—, —C(═O)—X—, —X—C(═O)—, —C(═O)—X—C(═O)—, carbonyl, alkenylene, alkynylene, ester, or ether, where X is a C6-C60 arylene group.

A composition for producing polyurethane foam contains a polyisocyanate component and a polyol component, wherein the composition additionally contains at least one organic compound V which contains at least one radical RA selected from the group consisting ofwherein * denotes the bond to the remaining portion of the at least one organic compound V, and wherein R1 are independently of one another identical or different and selected from H or branched or linear alkyl radicals having 1 to 30 carbon atoms which optionally also contain heteroatoms.

The invention discloses a polyurethane emulsion and a secondary battery. The polyurethane emulsion comprises water and a polymer dispersed in the water; the polymer comprises a core and a shell, the core is coated with the shell, the core comprises water, the shell comprises polyurethane, and the raw materials of the polyurethane comprise a hard segment monomer, a soft segment monomer, a cross-linking agent, a hydrophilic chain extender and a neutralizer; the hard-segment monomer comprises polyisocyanate containing at least one aliphatic ring, and the polyisocyanate does not contain other unsaturated groups except for isocyanate groups; the soft segment monomer comprises chain aliphatic polyol, the number of carbon atoms of a main chain of the chain aliphatic polyol is not less than 3, and the main chain does not contain heteroatoms and unsaturated groups; the cross-linking agent comprises at least three hydroxyl groups, and the mass of the cross-linking agent accounts for 0.1%-5% of the total mass of the polyurethane raw materials; the hydrophilic chain extender comprises carboxyl and at least two hydroxyls, and the mass ratio of the neutralizer to the hydrophilic chain extender is (0.25: 1)-(0.85: 1). The polyurethane emulsion can be applied to negative electrode bonding of a high-silicon battery system.

The invention provides a transition metal nickel complex as well as a preparation method and application thereof. The transition metal nickel complex has a structure as shown in a formula (I), wherein R1, R2, R3, R4 and R5 are independently selected from the following groups substituted by one or more Ra: H, C1-6 alkyl, C1-6 alkoxy, C6-20 aryl or C6-20 heteroatom aryl. The complex provided by the invention has higher catalytic activity and stability in catalysis of olefin polymerization, especially for polymerization of ethylene, has very strong regulation and control performance on the molecular weight of polyethylene, and can be used for preparing highly branched polyethylene.

The present application provides novel compounds that inhibit MYLK4 activity and their medical use. A compound of Formula (I) or a pharmaceutically acceptable derivative thereof is provided: (in the formula, R 1 to R 5 each independently is hydrogen or a C 1‑3 linear aliphatic hydrocarbon; R 6 a 5- to 10-membered aromatic hydrocarbon optionally substituted, a 5- to 10-membered heterocycle optionally substituted having 1 to 5 heteroatoms independently selected from nitrogen, oxygen, and sulfur as ring constituent atoms, or a condensation ring of any of the foregoing with a 4- to 10-membered heterocyclic group optionally substituted having 1 to 3 heteroatoms independently selected from nitrogen, oxygen, and sulfur as ring constituent atoms), and the like as medicines.

The application belongs to the technical field of flame-retardant composite materials, and particularly relates to a nano flame retardant and a flame-retardant thermoplastic polyurethane composite material. The nano flame retardant is prepared by growing bimetallic selenide vertically on the surface of graphene oxide in situ, and at the same time, using a reducing agent to dope heteroatoms to the graphene oxide. The nano flame retardant has been proved to be able to reduce the heat release rate, total heat release, and the generation rate and yield of toxic smoke of the thermoplastic polyurethane as a modified flame retardant of the thermoplastic polyurethane material.

A composition for forming an organic film containing (A) a resin or compound for forming an organic film, (B) a compound represented by the general formula (1), and (C) a solvent,wherein R1 is a terminal group represented by the general formula (2), X is an n1-valent organic group having 2 to 50 carbon atoms, and n1 represents an integer of 2 to 8,wherein R2 is a monovalent organic group, wherein the monovalent organic group contains at least any of structures having fluorine atoms represented by the general formula (3), m1 is 1 or 2, wherein when m1 is 1, Z represents a single bond or a divalent organic group optionally containing a heteroatom, and when m1 is 2, Z represents a trivalent organic group optionally containing a heteroatom,

The invention discloses a trans-perovskite solar cell based on double boric acid group anchoring and a preparation method thereof. The solar cell comprises a substrate, an anode, a hole transport layer, a co-self-assembly molecular layer, a perovskite light absorption layer, an electron transport layer and a cathode which are stacked. The co-self-assembly molecular layer comprises a first self-assembly molecule and a second self-assembly molecule of an organic compound containing two boric acid anchoring groups and a conjugated skeleton; the conjugated skeleton has at least: an extended conjugated structure including an aryl group, a biaryl group, a plurality of aryl groups bridged by heteroatoms, a heteroaryl group, and a plurality of heteroaryl groups connected by chemical bonds; the regulating group comprises an atom or a group for providing lone pair electrons, or a substituent containing a halogen atom. According to the invention, collaborative optimization of the interface stability, the carrier extraction efficiency and the interface functionality is realized through the co-self-assembly molecular layer, and the photoelectric conversion performance and the stability of the solar cell are improved.

The objective is to provide a diol-containing composition that enables the stable production of polycarbonate diol compositions for obtaining polyurethanes suitable for use in paints, coatings, and adhesives. [Solution] A diol-containing composition comprising a diol compound (4) represented by the following general formula (IV) and a tetrahydropyran compound (3-1) represented by the following general formula (III-1). [Formula 1] JPEG2026054816000039.jpg567 (In the above general formula (IV), n is an integer between 3 and 6.) [chemical 2] JPEG2026054816000040.jpg1572 (In the above general formula (III-1), R1 is a C2-C12 alkyl group or hydrogen atom, which may have substituents or heteroatoms.) A polycarbonate diol composition comprising the aforementioned diol-containing composition and a carbonate-based compound as raw materials.

The application discloses a modified hard carbon material and a preparation method and a battery thereof, and relates to the technical field of battery negative materials. The hard carbon layer is formed by using grafted silica as a template, then the soft carbon layer is coated outside the hard carbon layer, and then the silica is coated outside the soft carbon layer to limit carbonization and remove the template to obtain the target material; wherein the grafted silica contains a heteroatom S, and the hard carbon layer contains a heteroatom P; in the preparation, the silica template grafted with 3-mercaptopropyl triethoxysilane is prepared by a reverse micelle method, the phenol formaldehyde resin precursor is coated to form the hard carbon layer, P is introduced by modification of the trisglycidyl phosphate, and then the pitch-based soft carbon layer is carbonized, and then the silica is removed to obtain the target material. The material increases the active sites and the interlayer spacing by accurate doping of S and P, cooperatively relieves the volume expansion by the hard and soft carbons, and strengthens the ion adsorption by the oxygen groups, and exhibits high capacity and excellent cycle stability in the secondary batteries such as potassium ion batteries, and is suitable for the field of new energy storage batteries.

The invention provides an in-situ carbon-doped modified lithium ferrous silicate preparation method which comprises the following steps: S1, preparing phenolic resin / silicon dioxide composite hollow spheres by adopting resorcinol, formaldehyde and a silicon source, then adding an iron source and a lithium source for reaction, and synthesizing by adopting a hydrothermal method to obtain a modified lithium ferrous silicate precursor; and S2, calcining the modified lithium ferrous silicate precursor prepared in S1 in an inert gas atmosphere to obtain the in-situ carbon-doped modified lithium ferrous silicate material. According to the method, the phenolic resin / silicon dioxide composite hollow sphere precursor is prepared, a stable Si-C bond is formed in the precursor, and the in-situ carbon-doped modified lithium ferrous silicate material is prepared by taking the Si-C bond as a silicon source, so that compared with heteroatom-doped carbon layer modification, the method disclosed by the invention has the advantages that side reactions can be reduced, breakage of a carbon layer is avoided, and the service life of the lithium ferrous silicate material is prolonged. Modification is more uniform, the preparation process is simple, and the cost is lower.

An aqueous composition including (a) metal ions including tin ions and silver ions and (b) at least one complexing agent of formula C11RC12-XC11-RC11   (C11)and their salts,whereXC11 is selected from(a) a divalent 5 or 6 membered aromatic N-heterocyclic group;(b) a divalent 6 membered aromatic carbocyclic group; and(c) a divalent 5 or 6 membered aliphatic N-heterocyclic group including one N atom and optionally a second heteroatom selected from N and O; all of which may be unsubstituted or substituted by one or more OH or one or more RC14;RC11 is selected from ; andRC12 is selected from RC11, XC11-RC11, H, OH, NRC142, C1 to C10 alkyl, and C1 to C10 alkoxy

The invention relates to a resist composition, a laminate, and a pattern forming method. The present invention addresses the problem of providing a non-chemically amplified resist composition having excellent sensitivity and resolution in optical lithography using high-energy rays, and a pattern forming method using the resist composition. The resist composition is characterized by containing a hypervalent iodine compound represented by formula (1), a carboxyl group-containing compound, and a solvent. In the formula, a1 and b1 are integers, b1 is 0-4 when a1 is 0, b1 is 0-6 when a1 is 1, and b1 is 0-8 when a1 is 2. And R11 represents a halogen atom or a C1-10 hydrocarbon group which may contain a heteroatom. R21 represents a halogen atom or a C1-40 hydrocarbon group which may contain a heteroatom. And X is NR31 or S. And R31 represents a hydrogen atom, a halogen atom, or a C1-20 hydrocarbon group which may contain a heteroatom.

This invention provides an antistatic agent that complies with PFAS regulations, exhibiting excellent resin compatibility and exhibiting sufficient antistatic performance with only a small amount of additive. [Solution] An antistatic agent comprising one or more onium salts selected from formulas (1) and (2). TIFF2026058576000010.tif23169 TIFF2026058576000011.tif25168 (In the formula, R1 to R4 are alkyl groups that may be the same or different, X represents an alkyl chain or a heteroatom-containing alkyl chain, and Y is a bisfluorosulfonyliimide or bisoxalatoborate anion.)