43 results about "Lone electron pair" patented technology

The invention relates to a use of a compound according to formula (1), wherein each of R1, R2, R1, R2 is independently selected from H, C1-C6 alkyl, C1-C6 haloalkyl and C6-C10 aryl or both substituents on the same aromatic ring of the xanthene skeleton are hydrocarbyi groups linked with each other to form together an anelated divalent C2-C10 hydrocarbyi group; X and X' are independently selected from C and N, R5 is H if X is C, R5 is H if X' is C, R5 is lone electron pair if X is N, R5 is lone electron pair if X' is N, and each of R3, R4, R3, R4 is independently selected from H and C6-C10 aryl, with the proviso that neither both R3, R4 nor both R3, R4 are aryl at the same time and if X is C, R3and R4 are not H at the same time, and if X' is C, R3 and R4 are not H at the same time, or both substituents on the same phenyl or pyridyl ring are hydrocarbyi groups linked with each other to form together a divalent C4-C10 hydrocarbyi group representing an anelated, substituted or unsubstituted, six-membered aromatic ring; in an electron transporting layer or in an electron injecting layer comprised in an electronic device.

A semiconductor comprises a compound (A) adsorbed on a surface of the semiconductor, the compound (A) having at least one lone electron pair and substantially not undergoing in oxidation-reduction reactions, wherein the presence of the compound (A) negatively changes a flat band potential of the semiconductor with reference to that when the compound is absent.

A functional device comprising a semiconductor material, wherein the functional device contains a compound not substantially undergoing oxidation-reduction reaction but having at least one lone electron pair and in which adding the compound negatively changes a flat band potential of the semiconductor material with respect to a case not adding it.

The invention relates to a p-toluenesulfonate-group Gemini quaternary ammonium salt and a preparation method thereof. The preparation method comprises the following steps: adding long-chain alkyl tertiary amine and isopropanol into a container, heating, and dropwisely adding hydrochloric acid; after the dropwise addition, stirring uniformly, dropwisely adding epoxy chloropropane into the container, and reacting to obtain the hydroxypropyl Gemini quaternary ammonium salt; and adding the hydroxypropyl Gemini quaternary ammonium salt and paratoluensulfonyl chloride into a solvent, stirring uniformly, dropwisely adding a NaOH solution while stirring until the reaction is completed, stopping stirring, and heating to obtain the p-toluenesulfonate-group Gemini quaternary ammonium salt. The p-toluenesulfonate-group Gemini quaternary ammonium salt simultaneously has two hydrophilic quaternary ammonium salt groups; and the plane structure of the p-toluenesulfonate-group benzene ring in the linking group, the lone electron pair of heteroatoms in the sulfonate group and the metal surface can easily form a coordinate bond, so that the molecules form a film on the iron pipe wall, thereby facilitating the corrosion inhibition effect on the steel pipeline. The sulfonate group can not be easily hydrolyzed and decomposed in water, and thus, can not further pollute the water body.

The invention discloses a high-stability lithium ion battery electrolyte which comprises lithium hexafluorophosphate, a nonaqueous solvent, an additive and an electrolyte stabilizing agent, wherein the electrolyte stabilizing agent is any one and more of tris(trimethylsilyl)phosphite, N, N-dimethylpropionamide and N-methyl-2-pyrrolidone. According to the invention, as P / N atoms in the electrolyte stabilizing agent have lone electron pairs, relatively low Lewis base property is achieved after a less amount of the electrolyte stabilizing agent is added into the electrolyte, the electrolyte stabilizing agent and PF5 can form a complex of six ligands, and accordingly the Lewis acidity and reaction activity of the PF5 are reduced and the colority rising caused by the reaction between the PF5 and trace impurities in the electrolyte is inhibited well; in addition, the stabilizing agent has good compatibility with a graphite cathode, and can react on the electrode surface after being added into the electrolyte to form a film, so that the cycle performance of the lithium ion battery is improved.

Provided is a transition metal compound represented by the general formula [III]:wherein R23, R24, R25, R26, R27, and R28 are each independently selected from hydrogen, a hydrocarbon group, a silicon-containing group, a sulfur-containing group, an oxygen-containing group, a nitrogen-containing group, and a halogen-containing group, adjacent substituents of R23 to R28 are optionally bonded to each other to form a ring, M is a Group 4 transition metal, Y is carbon atom, Q is selected from halogen, a hydrocarbon group, an anionic ligand and a neutral ligand capable of coordinating with a lone electron pair, which is selected in the same combination or different combination, j is an integer of 1 to 4, and Z is a fluorenylidene group comprising a fluorene derivative formula [I] or formula [II]

Production of an electroluminescent element characterized in that even with respect to a material whose vapor deposition or wet coating is difficult in the form of a metal complex, a metal salt and an organic compound (ligand) being raw materials for a metal complex are coevaporated and deposited on a substrate so as to form a complex on the substrate, thereby forming a film comprising the metal complex, and that an electroluminescent element is fabricated with the use of the film resulting from the co-evaporation deposition. It is requisite that the organic compound (ligand) have a functional group capable of easily releasing proton to thereby exhibit anionic property (and couple with a metal) and a functional group having a lone electron pair for coordinate bond with a metal.

The present invention provides a compound represented by the following chemical formula (I); a tautomer or stereoisomer of the compound; or a salt of the compound, the tautomer, or the stereoisomer.In the chemical formula (I), R1 and R2 are each a Group 1 element or a protecting group of an amino group and may be identical to or different from each other, or alternatively, R1 and R2 together may form a protecting group of an amino group. R3 is a Group 1 element or a protecting group of a hydroxy group. R4 is a Group 1 element or —PR5R6R7R8 (R5, R6, R7, and R8 are each a Group 1 element, a lone electron pair, a Group 16 element, a Group 17 element, or a protecting group of a phosphorus atom, and may be identical to or different from each other). J is a hydrogen atom or an arbitrary atomic group, A is a hydrogen atom, a hydroxy group, an alkyl group, an aralkyl group, an alkoxy group, an electron-withdrawing group, a silylene group, or a sulfide group, or alternatively, J and A together may form a linker. L is a single bond or a linker (a linking atom or a linking atomic group), the main chain length (the number of main chain atoms) of the linker is arbitrary, L may or may not contain each of C, N, O, S, P, and Si in the main chain, and may or may not contain each of a single bond, a double bond, a triple bond, an amide bond, an ester bond, a disulfide bond, an imino group, an ether bond, a thioether bond, and a thioester bond in the main chain. Z is an atomic group that can form a peptide bond with a labeling compound, or is an atom or atomic group including a label.