237 results about "Terpyridine" patented technology

Disclosed herein are metal-terpyridine complexes and their use in hydrosilylation reactions.

A new class of 2,2':6',2''-terpyridine-platinum (II) and substituted 2,2':6',2''-terpyridine-platinum (II) complexes in which an N- or O- or halo nucleophile is the fourth ligand to platinum. The compounds are potent intercalators of DNA. Some have antitumour activity. Some have anti-parasitic activity. A new method of preparing the complexes involves reacting a Pt complex of 1,5-cyclooctadiene with a 2,2':6',2''-terpyridine.

There are provided a novel carbazole compound and an organic light-emitting device having an optical output with extremely high efficiency and luminance and having extremely high durability. Specifically, there are provided a novel carbazole compound represented by the general formula (1):

wherein Ar represents a substituted or unsubstituted bipyridine group, a substituted or unsubstituted terpyridine group, or a substituted or unsubstituted 4,5-diazafluorene group and is bonded to any of the eight available carbon atoms on the carbazole skeleton, and an organic light-emitting device using the carbazole compound.

The invention discloses a fluorescent probe: a benzothiazole-terpyridine compound used for distinguishing and detecting zinc ions and cadmium ions. The probe has a structural formula as shown in (I). The compound is prepared by using bromobenzaldehyde and O-aminothiophenol as raw materials, and performing a dehydration cyclization reaction, a coupling reaction and a terpyridine derivative reaction. According to the invention, the raw materials are cheap and easily available, a synthesis route is simple, a yield is relatively high, and the fluorescent probe is high in fluorescence quantum efficiency, and relatively high in heat stability and dissolvability. The probe uses a photoinduced charge transfer mechanism, has different luminescence response for the zinc ions and the cadmium ions, has characteristics of rapid response, high sensitivity and high selectivity, is suitable for food safety inspection, laboratory safety inspection, and especially industrial wastewater monitoring, and has a wide application prospect in environment monitoring, ecological protection, disease diagnosis, industrial production and sewage inspection.

In a dye sensitized photoelectric conversion device having an electrolyte layer (6) between a semiconductor electrode (3) including, for example, fine semiconductor particles to which a sensitizing dye is adsorbed and a counter electrode (5), two kinds of dyes are used as the dye, and the two kinds of dyes are adsorbed onto the surface of the semiconductor electrode (3) at the sites different from each other. The fine semiconductor particles include, for example, TiO₂. Tris(isothiocyanate)-ruthenium(II)-2,2′:6′,2″-terpyridine-4,4′,4″-tricarboxylic acid and 2-cyano-3-[4-[4-(2,2-diphenylethenyl)phenyl]-1,2,3,3a,4,8b-hexahydrocyclopent[b]indol-7-yl]-2-propenoic acid are used, for example, as the two kinds of dyes. Thereby, a dye sensitized photoelectric conversion device such as a dye sensitized solar cell capable of obtaining higher light absorption rate and photoelectric conversion efficiency than in a case of using one kind of dye at high purity, as well as a manufacturing method thereof are provided.

Belonging to the field of fluorescent solid materials, the invention in particular relates to a terpyridine zinc benzoate complex [Zn(tpb)2(Htpb)2] and its preparation condition. The terpyridine zinc benzoate complex prepared by the invention has a coordination structure shown as formula (1) in the specification, can emit yellow fluorescence under 365nm ultraviolet irradiation, and has high thermal stability, and the skeleton starts decomposition at a temperature above 300DEG C, so that the complex can be used as a zinc based fluorescent solid material in various fields, and specifically can be applied to ink anti-counterfeiting technology, like anti-counterfeiting of bills, currencies, securities and other high-end products. According to the preparation condition of the terpyridine zinc benzoate complex [Zn(tpb)2(Htpb)2] provided by the invention, the operation is simple, the crystallization purity is high, and the yield is up to 69%. (formula (1)).

The invention discloses a method for manifesting latent fingerprints on the basis of an electrochemical luminescence marker. According to the method, an activated terpyridine ruthenium composite is used as the electrochemical luminescence marker; the activated terpyridine ruthenium composite can be subjected to covalent binding with an amino group in fingerprint amino acid through N-hydroxysuccinimide eater on a molecule, so that the terpyridine ruthenium composite is marked and fixed on the fingerprints; then the terpyridine ruthenium composite and a coreactant (namely dinormal-butyl ethanolamine) in a solution are subjected to electrochemical luminescence reaction under certain potential, so that lines of the fingerprints comprising the integral morphology (namely a primary structure) and detailed features (namely a secondary structure) are manifested; according to the adopted electrochemical luminescence technology, an excitation light source is not required to be added, back light is eliminated, a self-quenching phenomenon of a radiant agent is greatly avoided, and the method is obviously superior to the traditional fluorescence imaging method; and an image can be quickly acquired by an imaging technology, and the speed of acquiring the image by the imaging technology is far higher than the speed of acquiring the image by a scanning electrochemical microscopy; and the used electrochemical luminescence coreactant is dinormal-butyl ethanolamine, and has the characteristics of high luminous intensity and environment-friendliness.

The invention belongs to a Zn (II) coordination polymer as well as a preparation method and an application thereof. The chemical formula of the Zn (II) coordination polymer is [Zn 12(1,4-NDC )12(TPY )12*2H2O]n, wherein 1,4-NDC is 1,4-naphthalenedicarboxylic acid, TPY is 4-phenyl-2,2':6',2''-terpyridine. The Zn (II) coordination polymer as well as the preparation method and the application thereof have the advantages that the preparation method is simple and easy to operate, the product yield is high, the product can be stable at the temperature of 130 DEG C or lower and has high third-order nonlinear optical reverse saturable absorption performance, the third-order nonlinear susceptibility Chi<3> of a pure material is 6.46*10<-8> esu, and the Zn (II) coordination polymer can be applied to optical limiting and laser protection devices.

Concentration of tritium and/or deuterium that is a contaminant in H2O, followed by separation of the concentrate from the H2O. Employed are certain metal oxo complexes, preferably with a metal from Group VIII. For instance, [RuIV(2,2',6',2''-terpyridine)(2,2'-bipyridine)(O)](ClO4)2 is very suitable.

The invention belongs to the technical field of food safety testing and discloses an asymmetric terpyridine complex. The structure of the asymmetric terpyridine complex is shown as a chemical generalformula (1) (shown in the description). The invention further discloses a preparation method and application of the asymmetric terpyridine complex. By using the asymmetric terpyridine complex providedby the invention to prepare a melamine detection reagent, naked eye visual recognition of trace melamine in milk products can be realized; by using the asymmetric terpyridine complex to prepare a gold nanoparticle solution modified by the asymmetric terpyridine complex, colorimetric visual detection of the melamine can be realized; detection and operation steps are simple, and short time and highsensitivity are realized.

The present invention relates to an intelligence polymer hydrogel and a preparation method thereof. The hydrogel is prepared by adding Fe <2 +> into a temperature-sensitive copolymer formed by copolymerization of alkoxy ether branch primitives with temperature sensing properties and terpyridine monomers for crosslinking by terpyridine-metal coordination effect, the solid content of the hydrogel is 9wt%; the hydrogel in a certain temperature range can achieve the process of rapid dehydration collapse with increasing of the temperature and re-hydration swelling with decreasing of the temperature, and the hydrogel has high load capacity and good biocompatibility, and has good use value in the field of biomedical materials.

Polymerizable diazonium salts having redox properties and absorption in the visible range, a process for preparing them and uses thereof are disclosed. The salts have the general formula:

[X^X+L_nD_dE_m(N₂⁺)_p][(B⁻)_p+x]

in which:

• • X is chosen from transition metals, preferably X is chosen from ruthenium (Ru), osmium (Os), iron (Fe), cobalt (Co) and iridium (Ir),
  • x is an integer ranging from 1 to 5 inclusive,
  • L is a ligand chosen from pyridine, bipyridine, terpyridine, phenanthroline and phenylpyridine groups, and mixtures thereof,
  • n is an integer ranging from 1 to 5 inclusive,
  • D is a saturated or unsaturated, C₁-C₅ alkyl spacer compound,
  • d=0 or 1,
  • E is an aromatic or polyaromatic spacer compound that can contain one or more heteroatoms,
  • m is an integer ranging from 0 to 5 inclusive,
  • p is an integer, and
  • B is a counterion.

The invention discloses a zinc halide terpyridine coordination polymer multifunctional material and a preparation method thereof. The structural formula of the zinc halide terpyridine coordination polymer multifunctional material is shown in the specification, wherein X refers to Cl, Br or I. A zinc halide terpyridine coordination polymer [Zn(tpatpy)X2]n prepared through the method is a multifunctional material integrating the frequency-doubled effect, the two-photon absorption effect and the ferroelectric effect, and has wide application prospects in the high-tech technical field of nonlinear optics. Compared with a traditional second-order linear optical material of urea, the n-times frequency effect of the coordination polymer [Zn(tpatpy)Cl2]n prepared through the method is higher and is 22 times that of the urea.

The invention discloses an efficient air purification type photocatalyst filter screen. The efficient air purification type photocatalyst filter screen comprises a filter screen base material; a photocatalyst is arranged on the filter screen base material; the photocatalyst is prepared from the following components: titanium dioxide, molybdenum oxide, cerium oxide, lanthanum oxide, nickel oxide, platinum oxide, silicon dioxide, nano tin dioxide, silica gel power, aluminum oxide, sepiolite, iron acetylacetonate and terpyridine ruthenium chloride. The photocatalyst filter screen prepared by the invention has a good adhesion property and a relatively large reaction contact area; the removing rates of acetaldehyde, benzene and formaldehyde are more than 90 percent and the photocatalytic property is very good; the efficient air purification type photocatalyst filter screen is high in utilization rate of catalyst and stable in property and has very good application value.

The invention discloses a preparation method and application of a Zn<2+> probe cyclically usable in a pure water medium, belonging to the field of fluorescent probes. The invention provides the fluorescent probe which uses a terpyridine polymer as an acceptor molecule and is used for detection of Zn<2+> in the pure water medium, and the probe can be cyclically used 40 times at most. The probe has good capability in selecting and identifying Zn<2+> and is hardly influenced by other metal ions. The detection limit of the Zn<2+> probe to zinc ions in the pure water medium is 1*10<-6> mol/L. The Zn<2+> probe cyclically usable in the pure water medium can be used for detection of zinc ions in a biological system, analysis, detection and fluorescence imaging of zinc ions in living cells and living tissue of organisms, detection of zinc ions in lesion tissue in clinical medicine and detection of zinc ions in environmental waste water.

Highly active and durable electrochromic films are prepared with good thickness control in the nanometer range by alternate application of a metal salt solution and a solution of a π-conjugated polymer having metal complexing side chains, for example, polymers having side chains comprising terpyridine (tpy) groups. Thus a robust, crosslinked organo-metallic network of a known, desired thickness with excellent electroactive properties is readily prepared.

Disclosed herein are cobalt complexes containing terpyridine ligands and chelating alkene-modified silyl ligands, and their use as hydrosilylation and/or dehydrogenative silylation and crosslinking catalysts. The cobalt complexes also exhibit adequate air stability for handling and manipulation.

The invention discloses a method for determining aflatoxin. The method is characterized by comprising the following steps: (1) preparing a solution 1 for later use; (2) preparing a solution 2 for later use; (3) preparing R1 modified by HRP (horseradish peroxidase); (4) preparing R2 modified by HRP; and (5) detecting aflatoxin. Red rhodamine B can neither cause concentration quenching, nor cause insufficient light intensity. By adding mica powder, the luminescence lifetime of an oxalate luminescence system is significantly prolonged. Ruthenium terpyridine and chemiluminescence have the advantages of high detection sensitivity, wide linear range and the like, and aflatoxin can be detected more effectively. The method disclosed by the invention has the excellent properties of lower toxicity, higher flash point and lower vapor pressure. By detecting the content of aflatoxin in liquid milk and using a standard addition recovery method, the recovery yield of 98.4%-100.4% is obtained, indicating that the method has good accuracy in determination of aflatoxin.