Zinc and cadmium complexes of tetradentate azomethines of 2-tosylaminebenzaldehyde, possessing luminiscent activity

FIELD: chemistry.

SUBSTANCE: invention relates to novel metal chelates, namely to zinc and cadmium complexes of tetradentate azomethines of 2-tosylaminebenzaldehyde and dioxydiamines of formula I , where m=2-4, n=2-4, M=Zn, Cd.

EFFECT: metal-complex compounds I demonstrate photoluminiscent properties in the blue spectrum region and can be used as an electroluminescent layer in the creation of organic light-emitting diodes (OLED) of white and visible light.

4 cl, 5 ex

 

The invention relates to new compounds in the series metallogenetic tetradentate azomethine ligands 2-tosylaminophenyl and aliphatic diamines, namely complexes of zinc and cadmium tetradentate azomethines 2-tosylaminophenyl and deoxidation formula I

I

where m=2-4, n=2-4, M=Zn, Cd

Metal complex compounds I can be used as electroluminescent layer when creating organic light-emitting diodes (OLED) and white visible light. One of the important characteristics of such compounds is the high quantum yields of photoluminescence. Especially popular are metallogenica, emitting in the blue region of the spectrum.

Known bis[(2-tosylamide)benzyliden-N-alkylamine]zinc General formula II

II, where R=C1-C6- alkyl

The compound (II) exhibit luminescent properties in the blue region of the spectrum, their quantum yields are of the order of 0.3, and a thermal stability of about 260°C [patent RU № 2295527, C07F 3/06, 2007 and No. 2395512, C07F 3/06, 2007].

Known bis[(2-tosylamide)benzyliden-N-alkylamine]zinc General formula III:

III

Compound III shows photoluminescence properties in the blue region of the spectrum: the absorption band of λ = 368 nm, strip electrolys is ascentii λ = 455 nm. It was used to create OLEDs with brightness 730 CD/m2that corresponds to a quantum efficiency of 1.2 CD/A at a voltage of 6.3 In [Yu, T., Su, W., Li W., Hong Z., Hua K. et al. Inorg. Chim. Acta. 2006. V. 359. P. 2246-2251]. The connection is stable up to a temperature of 315°C.

The closest in performance and the achieved result is N,N'-bis[(2-tosylaminophenyl) -1, 3-diamino-2-propanol] zinc formula IV:

IV

Compound IV exhibits fluorescent properties (band fluorescence λ = 430 nm (acetonitrile), quantum yield φ = 0.14). Information about its thermostability not given [M. R. Bermejo, M. Vazquez, J. Sanmartin et al. New J. Chem. 2002. V. 26. P. 1365-1370].

Object of the invention is the extension of a series of luminescent complexes of zinc and cadmium, emitting in the blue region of the spectrum and has high thermal stability and volatility.

The technical result of the invention are new compounds in the series metallogenetic tetradentate azomethine ligands 2-tosylaminophenyl and aliphatic diamines, exhibiting photoluminescence properties in the blue region of the spectrum with higher quantum outputs luminescence having high thermal stability and volatility in the conditions of vacuum deposition.

The technical result of the invention is achieved by compounds of General formula I.

The invention satisfied everaet the criterion of inventive step, as the number metallogenetic tetradentate azomethine ligands 2-tosylaminophenyl and aliphatic diamines do not know the relationship between the structure of compounds and their luminescent properties.

The bases used for the synthesis of complexes I, obtained by condensation of 2-tosylaminophenyl and the corresponding amines. Chelates produced by interaction of ligands with metal salts (cs) and electrochemically (es).

Below are examples of making connections.

Example 1. N,N-bis(2-tosylimines)-3,6-dioxa-1,8-octanediamine (ligand for Ia, where M= Zn, and IB, where M = Cd, m= n=2). To a solution of 0.55 g (2 mmol) of 2-tosylaminophenyl in 30 ml of absolute toluene is added 0.148 g (1 mmol) of 1,8-diamino-3,6-dioxaoctyl in 10 ml of absolute toluene. The mixture is boiled for 2 hours. The solvent is distilled off, the residue is filtered off and recrystallized. Light yellow crystals. Yield 80 %. TPL= 134-135°C. Found, %: C, 61.82; H, 5.64; N, 8.52; S 9.84. For C34H38N4O6S2calculated, %: C, 61.61; H, 5.78; N, 8.45; S 9.68.

1H NMR spectrum, DMSOd6, δ, M. D.: 2.22 (6 H, c, CH3), 3.60 (4H, c, CH2), 3.69 (8H, c, CH2), 7.01-7.63 (16H, m, CAr-H), 8.36 (2H, s, CH=N), 13.06 (2H, ush. S., NH).

IR-spectrum (powder), ν, cm-1: 2909 CL (CH2), 2862 SL (NH), 1638 (CH=N), CL 1599, 1579 SL, 1497 Wed, 1434 Wed, 1402 CL, 1336, 1305 Wed, 1278 cf (as SO2), 1207 SL, 1156 (s, SO2

UV-spectrum (acetonitrile), λ, nm (ε, l·mol-1·cm-1): 221 (75400), 257 (23900), 311 (7100). The connection is not fluorescent.

Example 2. N,N'-bis(2-tosylimines)-4,9-dioxa-1,12-dodecandioic (ligand for IB, where M = Zn, n = 3, m =4) are obtained analogously to example 1 from 0.55 g (2 mmol) of 2-tosylaminophenyl and 0.298 g (mmol) 4,9-dioxa-1,12-dodecylamine.

Light yellow powder. Yield 96 %. TPL= 89 - 90°C. Found, %: C 63,65; H, 6.38; N, 7.82; S 8.74. For C38H46N4O6S2calculated, %: C 63,48; H, 6.45; N, 7.79; S 8.92.

1H NMR spectrum, DMSOd6, δ, M. D.: 1.55 (4 H, d, CH2), 1.86 (4 H, m, CH2), 2.48 (6N, s, CH3), 3.39 (8 H, m, CH2), 3.64 (4 H, t, CH2), 7.04 - 7.09 (2 H, m, CAr-H), 7.29 - 7.64 (14 H, m, CAr-H), 8.44 (2 H, s, CH=N), 13.25 (2 N, ush. S., NH).

IR-spectrum (powder), ν, cm-1: 2939 CL (CH2), 2858 SL, 1634 cf (CH=N), 1597 SL, 1552 SL, 1433 SL, 1338 cf (as SO2), SL 1305, 1280 Wed, 1168 Wed, 1154 OS (s, SO2), 1112 cf, cf 1090, 940 Wed, 843 Wed, 813 Wed, 759, 730 SL, SL 705, 659, 614 FF.

UV-spectrum (acetonitrile), λ, nm (ε, l·mol-1·cm-1): 221 (69500), 257 (21700), 311 (6200). The connection is not fluorescent.

Complexes of zinc and cadmium Ia,b,C receive chemical and electrochemical methods.

Example 3. Chemical method (XC): [N,N'-bis(2-tosylimines)-3, 6-dioxa-1, 8-octanediamine)]zinc Ia (M = Zn, m = n = 2).

To a solution of 0.33 is (0.5 mmol) of N,N'-bis(2-tosylimines)-3, 6-dioxa-1, 8-diaminooctane in 20 ml of methyl alcohol was added a solution of 0.11 g (0.5 mmol) dihydrate zinc acetate in 5 ml of methyl alcohol or 0.13 g (0.5 mmol) of the acetate dihydrate cadmium. The mixture is boiled for 2 hours. Precipitated upon cooling, the precipitate is filtered off, washed and recrystallized.

Electrochemical method (es) obtain the compounds I. In an electrochemical cell with a platinum cathode and a zinc (or cadmium) anode was placed a solution of 0.33 g (0.5 mmol) of N,N'-bis(2-tosylimines)-3, 6-dioxa-1, 8-octanediamine in 20 ml of acetonitrile, add 0.01 g [Et4N]ClO4as the conductive additive. The electrosynthesis is carried out at current 40 mA and a voltage of 20 V for 1 hour at room temperature. The amount of precipitation of the complexes is filtered off and recrystallized.

The cathode (Pt): LH2+ 2 e → L-2+ H2

Anode: Zn0or Cd0) M - 2 e → M2+(M = Zn, Cd)

Solution: L2-+ M2+→ ML

[N,N'-bis(2-tosylimines)-3, 6-dioxa-1, 8-octanediamine]zinc. Ia (M = Zn): White crystals. TPL> 320°. Yield: 85 % (XC), 95 % (es). Found, %: C, 56.30 (XC), 56.32 (es); H, 5.11 (CH), 5.13 (es); N, 7.82 (CH), 7.68 (es); S 8.90 (XC), S 8.92 (es); Zn 9.12 (XC), 9.15 (es). For C34H36N4O6S2Zn, calculated, %: C 56.23; N, 5.00; N, 7.72; S 8.83; Zn 9.00.

1H NMR spectrum, DMSOd6, δ, M. D.: 2.22 (6 H, s, CH3), 3.14 (2H, d, CH2), 3.51-3.60 (8 H, m, CH2). 4.21-4.29 (2 H, m, CH2), 6.84 (2H, t, CAr-H), 7.11-7.20 (8 H, m, CAr-H), 7.26-7.28 (2 H, m, CAr-H), 7.91-7.92 (4 H, d, CAr-H), 8.45 (2H, s, CH=N).

IR-spectrum (powder), ν, cm-1: 2926 donkey, 2853 SL, 1636 (CH=N), 1599 SR 1558 SR 1482 Wed, 1442 Wed, 1414 SL, 1285, 1258 (as SO2), 1231 CL, CL 1198, 1175 SL, 1140 OS (s, SO2), 1120 Wed, 1095 OS, 1044 SL, 949, 921, 864, 834 Wed, 815 Wed, 763, 708 CL, 692 OS, 652, 588 Wed, 563 OS.

Absorption spectrum (acetonitrile), λ, nm (ε, l·mol-1·cm-1): 234 (76900), 270 (21100), 277 (20500), 350 (12100). Fluorescence spectrum: the band maximum fluorescence 433 nm (blue region). Quantum yield of fluorescence φ = 0.29.

The connection is volatile under the conditions of vacuum deposition.

Example 4. [N,N'-bis(2-tosylimines)-3, 6-dioxa-1, 8-octanediamine]cadmium. IB (M = Cd, m = n =2): White crystals. TPL> 320°C. Yield: 70 % (XC), 82 % (es). Found, %: C, 52.78 (XC), 52.84 (es); H 4.71 (CH), 4.59 (es); N 7.422 (CH), 7.40 (es); S 8.35 (XC), S 8.39 (es); Cd 14.60 (XC), 14.65 (es). For C34H36N4O6S2Cd, calculated, %: 52.84; N, 4.69; N, 7.25; S 8.29; Cd 14.54.

1H NMR spectrum, DMSOd6, δ, M. D.: 2.22 (6 H, s, CH3), 3.13-3.15 (2H, m, CH2), 3.51-3.60 (8 H, m, CH2). 4.23 (2 H, d, CH2), 6.83-6.86 (2H, t, CAr-H), 7.11-7.20 (8 H, m, CAr-H), 7.26-7.28 (2 H, m, CAr-H), 7. 50-7. 92 (4 H, m, CAr-H), 8.45 (2H, s, CH=N).

IR-spectrum (powder), ν, cm-1: 2928 donkey, 2870 donkey, 2849 CL (CH2), 1635 (CH=N), 1598, 1557, 1481, 1442, 1412 SL, 1285, 1257 OS as SO2), 1231 CL, CL 1198, 1174 SL, 1138 (s, SO2), 1119, 1107, 1083 OS, 1044 SL, 949, 922, 904 SL, 863 Wed, 833 Wed, 813 Wed, 768, 707 Wed, 691 OS, 651, 638, 587 Wed, 569 OS.

Absorption spectrum (acetonitrile), λ, nm (ε, l·mol-1·cm-1): 234 (80000), 270 (21300), 277 (20800), 350 (12300). Fluorescence spectrum: the band maximum fluorescence 433 nm (blue region). Quantum yield of fluorescence φ = 0.25.

The connection is volatile under the conditions of vacuum deposition.

Example 5. [N,N'-bis(2-tosylimines)-4, 9-dioxa-1, 12-dodecanedioic]zinc IB (M = Zn, m = 4, n = 3). Is obtained analogously to example 3 chemical from 0.71 g (1 mmol) of N,N'-bis(2-tosylimines)-4, 9-dioxa-1, 12-dodecadien and 0.22 g (1 mmol) dihydrate zinc acetate in a solution of methanol or electrochemical method in acetonitrile.

White crystals. TPL> 320°C. Yield: 85 % (XC), 90 % (es). Found, %: C, 58.42 (XC), 58.30 (es); H 5.70 (CH), 5.65 (es); N, 7.26 (CH), 7.20 (es);S 8.19 (XC), S 8.27 (es); Zn 8.40 (CH), 8.25 (es). For C38H44N4O6S2Zn, calculated, %: C 58.34; H 5.67; N, 7.16; S 8.29; Zn 8.36.

1H NMR spectrum, DMSOd6, δ, M. D.: 1.36 (4 H, d, CH2), 1.73 (4 N, ush. C., CH2), 2.24 (6 H, s, CH3), 3.25-3.33 (4 H, m, CH2), 3.37-3.41 (4 H, m, CH2), 6.82-6.90 (2 H, m, CAr-H), 7.14-7.51 (10 H, m, CAr-H), 7.92 (4 H, t, CAr-H), 8.54 (2 H, s, CH=N).

IR-spectrum (powder), ν, cm-1: 2934 SL, 2864 CL (CH2), 1629 (c (CH=N), 1598 Wed, 1557 Wed, 1482 SL, 1421 SL, 1296, 1287, 1258 (as SO2), 1198 SL, 174 SL, 1134 OS ('s SO2), 1081 OS, 946, 860, 833 cf, cf 812, 753 Wed, 708 CL, 663 OS, 575 S.

Absorption spectrum (acetonitrile), λ, 270, 350 nm. Fluorescence spectrum: the band maximum fluorescence λ = 433 nm (blue region). Quantum yield of fluorescence φ = 0.25.

The connection is volatile under the conditions of vacuum deposition.

The structure of complexes Ia and IB are set by the method of x-ray analysis (PCA). Methods of quantum chemistry in the approximation of the density functional DFT (B3LYP/6 - 31 G(d), the program Gaussian-03) received the structural parameters of the optimized molecules azomethine ligands for complexes Ia and IB. Within the method DT-DEF calculated electronic absorption spectra, the characteristics of which are close to experimental values.

Thus, the proposed compounds have higher quantum yields (instead of 0.3 to 0.14)than the prototype, rather thermostable (TPL> 320°C) and volatile under the conditions of vacuum deposition.

1. Complexes of zinc and cadmium tetradentate azomethines 2-tosylaminophenyl and deoxidation formula I

where m=2-4, n=2-4, M=Zn, Cd .

2. Complexes of zinc and cadmium on p. 1, where M = Zn, n = m = 2.

3. Complexes of zinc and cadmium on p. 1, where M = Cd, n = m = 2.

4. Complexes of zinc and cadmium on p. 1, where M = Zn, n = 3, m = 4.



 

Same patents:

FIELD: electricity.

SUBSTANCE: invention is related to the area of electroluminescent devices - organic light-emitting diodes used as effective and highly economical solid-state sources of lighting. The electroluminescent device includes hole injection layer, hole transport layer, active luminescent layer based on electroluminescent compound of bis[2-(2'-tosylaminophenyl) benzoxazolato]zinc(2+) formula I, hole blocking layer, electron transport layer, electron injection layer and electron blocking layer with use of N,N'-bis(3-methylphebyl)-N,N'-bi(phenyl)-9,9-spirobifluorene.

EFFECT: invention allows increase in brightness of green emission of electroluminescent devices against the known level with luminescent layer based on zinc chelate complexes with salicylic aldehyde derivatives with different amines.

3 dwg, 1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to application of bis(2,4,7,8,9-pentamethyldipyrrolylmethen-3-yl)methane dihydrobromide as fluorescent zinc (ii) cation sensor.

EFFECT: invention will make it possible to increase fluorescent activity of heterocyclic organic compound with respect to zinc (II) ion in presence of other ions of metals.

1 tbl, 40 ex

FIELD: chemistry.

SUBSTANCE: disclosed are novel branched oligoarylsilanes of general formula (I) , where R denotes a substitute selected from: linear or branched C1-C20 alkyl groups; including separated by at least one oxygen or sulphur atom; branched C3-C20 alkyl groups, separated by at least one silicon atom; C2-C20 alkenyl groups; Ar denotes identical or different arylene or heteroarylene radicals selected from: substituted or unsubstituted thienyl-2,5-diiyl, substituted or unsubstituted phenyl-1,4-diiyl, substituted or unsubstituted 1,3-oxazole-2,5-diiyl, substituted fluorene-4,4'-diiyl, substituted cyclopentadithiophene-2,7-diiyl; Q denotes a radical selected from the series for Ar; X denotes at least one radical selected from the series for Ar and/or a radical selected from: 2,1,3-benzothiiodiazole-4,7-diiyl, anthracene-9,10-diiyl, 1,3,4-oxadiazole-2,5-diiyl, 1-phenyl-2-pyrazoline-3,5-diiyl, perylene-3,10-diiyl; n is an integer from 2 to 4; m is an integer from 1 to 3; k is an integer from 1 to 3. Also disclosed is a method of producing said compounds.

EFFECT: obtaining novel compounds characterised by high luminescence efficiency, efficient intramolecular energy transfer from some molecule fragments to others and high thermal stability.

20 cl, 5 dwg, 1 tbl, 15 ex

FIELD: chemistry.

SUBSTANCE: invention relates to novel compounds in a series of chelate complexes of zinc with azomethine derivatives, namely to bis[2-(N-tozylamino)benzyliden-4'-dimethylaminophenyliminato]zinc(II) of formula I Also claimed is electroluminescent device.

EFFECT: invention makes it possible to obtain compounds, demonstrating electroluminescent properties with high brightness.

2 cl, 3 dwg, 1 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a novel 2-{4-[(E)-2-(4-ethoxyphenyl)vinyl]phenoxy}-N,N,N-trimethylethanamine bromide, having properties of a surface-active photosensitiser with a structure which enables to alter excitability of heart and neural tissue by blocking ion channels of cells. The compound facilitates selective irreversible blocking of ion channels of only those cells exposed to UV radiation in the presence of said compound. In particular, the compound can be used in pre-clinical studies of antiarrhythmic drugs when creating various novel model systems. The compound has the structural formula

EFFECT: compound has low toxicity.

5 dwg, 1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to novel 4-substituted-N-phenyl-1,8-naphthalimides which contain in the N-aryl nucleus a crown ether residue (with a different combination of oxygen, nitrogen and sulphur atoms) of general formula (I) , where R1=NO2, Br, NH2, OCH3, NHCOCH3, Ia: Rl=NO2, X=S, n=1; Ib: R1=NO2, x=NCH3, n=1; Ic: R1=NO2, X=NCH3, n=2; Id: R1=Br, X=NCH3, n=2; Ie: R1=NH2, X=S, n=1; If: R1=NHCOCH3, X=S, n=1; Ig: R1=OMe, X=S, n=1; Ih: R1=OMe, X=NCH3, n=1; Ii: R1=OMe, X=NCH3, n=2, where compounds If-Ii exhibit properties of fluorescent sensors on cations of alkali-earth, transition and heavy metals, and compounds Ia-Ie are intermediate compounds in the process of synthesis of compounds If-Ii. The invention also relates to a method of producing a compound of formula (I) and intermediate compounds of formula (II)

EFFECT: obtaining novel sensors on cations of alkali-earth, transition and heavy metals, novel methods of producing compounds of the given formula.

7 cl, 3 tbl, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to an organic compound of formula (1), in which each of R1 - R16 is independently selected from a hydrogen atom, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, octyl, 1-adamantyl, 2-adamantyl, an unsubstituted phenyl group, a phenyl group, a substituted alkyl group, and an unsubstituted biphenyl group. The invention also relates to an organic light-emitting diode, a display device, an image input device, a lighting device, as well as a light source for exposure for devices for forming an electrophotographic image based on said compound.

EFFECT: compound has high quantum output and emits light suitable as green light.

11 cl, 26 ex, 6 tbl, 1 dwg

FIELD: textiles, paper.

SUBSTANCE: composition comprises at least one bis-triasinylaminostilbene compound containing alkylsulfoacid groups, as a fluorescent bleaching agent, a salt of a divalent cation, the carrier, and water. The invention also relates to a method of bleaching paper, which consists in the fact that the pulp sheet is contacted with the said composition, and to the paper obtained by this method.

EFFECT: method enables to obtain paper with improved whiteness, at that the obtained paper has improved printing performance.

25 cl, 3 dwg, 3 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to novel complexes of rare-earth elements, which can be used as active layers of organic light-emitting diodes, optical-electronic devices as well as fluorescent labels and markers. Disclosed is a luminescent anionic complex of rare-earth elements of formula [Ln(L1)4]-M+ (I), where Ln is an ion of a trivalent rare-earth element; L1 is a diketonate ligand - a derivative of 3-polyfluoroalkyl-1-pyrazolyl-1,3-propanedione of formula (II), where Rf is CH2F, CHF2, CF3, fluorinated alkyl, cycloalkyl or aryl; M+ is a univalent cation of an alkali metal or an ammonium ion, a residue of a quaternary ammonium base, a cation of pyridinium or a secondary amine or a tertiary amine. A method of producing compound (I) is also disclosed.

EFFECT: invention enables to obtain novel compounds (I) with high luminescence intensity compared to their non-fluorinated counterparts, and also enables to vary in a wide range such process parameters of compounds (I) as thermal stability, film-forming capacity, solubility and volatility in a vacuum, which are necessary for use in optical-electronic devices.

2 cl, 3 dwg, 8 ex

FIELD: chemistry.

SUBSTANCE: disclosed are novel 4-biphenyl carboxylic acid derivatives of formula 1 as an organic mechanoluminescent material. Also disclosed is a mechanoluminescent composition which contains an effective amount of the mechanoluminescent substance of formula 1 and a luminescent substance.

EFFECT: novel efficient mechanoluminescent materials based on cheap and nontoxic organic substances.

3 cl, 2 dwg, 1 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to molecular complexes of zinc and cadmium bis(1-phenyl-3-methyl-4-formyl-5-pyrazolonate) with amino-derivatives of nitric heterocycles of general formula (I) (NH2-Het)n, where NH2-Het is 1-aminoisoquinoline, 3-aminoquinoline, 6-aminoquinoline, 5-amino-4,6-dimethylquinoline, 2-aminopyridine, 2-amino-5-bromopyridine, 3-amino-5-methylisoxazole, 2-amino-1-ethylbenzimidazole, M is Zn, Cd, n=1, 2.

EFFECT: molecular complexes of formula (I) exhibit luminescent properties in the blue region of the spectrum and can be used as phosphors for making organic light-emitting diodes of white and visible light.

14 ex

FIELD: chemistry.

SUBSTANCE: claimed is a silicon-zinc-containing glycerohydrogel, possessing a wound healing, regenerative and antibacterial activity, a composition of which corresponds to formula kSi(C3H7O3)4·ZnC3H6O3·xC3H8O3·yH2O, where 1≤k≤4, 7≤x≤26, 20≤y≤100, obtained by interaction of tetraglycerolate of silicon in excess of glycerol Si(C3H7O3)4·xC3H8O3, where 0,5≤x≤10, monoglycerolate of zinc in abundance of glycerol ZnC3H6O3·6C3H8O3 and water in molar ratio Si(C3H7O3)4:ZnC3H6O3:C3H8O3:H2O equal to (1÷4):1:(7÷26):(20÷100) at a temperature of 20-40°C and intensive mixing.

EFFECT: claimed silicon-zinc-containing glycerohydrogel possesses the wound healing, regenerative and antibacterial activity, is simple to obtain and convenient in application.

1 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to novel compounds in a series of chelate complexes of zinc with azomethine derivatives, namely to bis[2-(N-tozylamino)benzyliden-4'-dimethylaminophenyliminato]zinc(II) of formula I Also claimed is electroluminescent device.

EFFECT: invention makes it possible to obtain compounds, demonstrating electroluminescent properties with high brightness.

2 cl, 3 dwg, 1 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: described are 15-crown-5- and dithia-18-crown-6-containig 2-methyl-9-styryl phenanthrolines of formula: where as optical sensors on cations of calcium, barium and lead. Claimed compounds are obtained by interaction of ligand of 15-crown-5 or dithia-18-crown-6-containing 2-methyl-9-styryl phenanthroline with zinc perchlorate in acetonitrile with irradiation with red light.

EFFECT: complexes possess properties of highly efficient fluorescent sensors on cations of calcium, barium and lead, which make it possible to visually determine metal cation.

2 cl, 2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to zinc complex of asymmetric ethylenediamine-N,N-dipropyonic acid dichloride of formula Also claimed is method of its obtaining. Complex can be applied for solution of problems, associated with the necessity to introduce Zn2+ in chelate form instead of its mineral salts, as well as to serve as initial product for synthesis of other chemical compounds of series of polydentate ligands, in particular asymmetric ethylenediamine-N,N-dipropyonic acid.

EFFECT: obtaining zinc complex of asymmetric ethylenediamine-N,N-dipropyonic acid dichloride.

4 cl, 4 dwg, 3 ex

FIELD: biotechnologies.

SUBSTANCE: invention refers to a compound having general formula (I),

where: m and n are independent integer numbers of 1 to 6; each of X1-X3 and Y1-Y3 is O; each of R1-R3 is independently chosen from a group consisting of hydrogen or alkyl; and R is O-(CH2)x-C(-O)NR'-(CH2)y-NHR'. Besides, x and y are independent integer numbers of 1 to 6; and R' is chosen from the group consisting of hydrogen and alkyl. In addition, an antibody containing an antigen recognition area, use of the compound, pharmaceutical composition, use of the antibody, method for MMP-2 or MMP-9 activity inhibition in a sample and a composition for determining MMP-2 or MMP-9 are proposed.

EFFECT: invention allows obtaining compounds that are able to inhibit MMP-2 or MMP-9 activity.

11 cl, 16 dwg, 4 tbl, 11 ex

FIELD: chemistry.

SUBSTANCE: invention relates to molecular complexes of zinc and cadmium bis(1-phenyl-3-methyl-4-formyl-5-pyrazolonate) with amino-derivatives of nitric heterocycles of general formula (I) (NH2-Het)n, where NH2-Het is 1-aminoisoquinoline, 3-aminoquinoline, 6-aminoquinoline, 5-amino-4,6-dimethylquinoline, 2-aminopyridine, 2-amino-5-bromopyridine, 3-amino-5-methylisoxazole, 2-amino-1-ethylbenzimidazole, M is Zn, Cd, n=1, 2.

EFFECT: molecular complexes of formula (I) exhibit luminescent properties in the blue region of the spectrum and can be used as phosphors for making organic light-emitting diodes of white and visible light.

14 ex

FIELD: chemistry.

SUBSTANCE: invention relates to electroluminescent substances and specifically to zinc (II) bis{3-methyl-1-phenyl-4-[(quinoline-3-imino)-methyl]1-H-pyrazol-5-onato} of general formula I . Also disclosed is an electroluminescent device which contains zinc (II) bis{3-methyl-1-phenyl-4-[(quinoline-3-imino)-methyl]1-H-pyrazol-5-onato} of general formula I.

EFFECT: compound exhibits electroluminscent properties in the yellow spectral region with high brightness.

2 cl, 4 ex

FIELD: chemistry.

SUBSTANCE: method involves reaction of a zinc halide with trialkylaluminium containing a hydride and trialkylaluminium with one or more polymerised alkyl groups. Content of hydride in trialkylaluminium ranges from 0.01 wt % to 0.10 wt %. After reaction, dialkylzinc containing not more than 10 ppmw aluminium is separated from the reaction products and dialkylaluminium monohalide containing not more than 10 ppmw zinc is then separated.

EFFECT: invention enables to obtain dialkylzinc and dialkylaluminium monohalide of high purity and with high output.

7 cl, 2 dwg, 1 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to novel substituted metal phthalocyanines, which can be used as direct and acid dyes for dyeing cotton and protein fibre. Disclosed are tetra-4-[(4'-carboxy)phenylamino]phthalocyanine metal complexes of formula, where M=Cu, Ni, Zn.

EFFECT: metal phthalocyanines expand the colour gamma of the current light-blue copper tetra-4-carboxyphthalocyanine, which is the closest on structure and application, to a blue-green and green colour.

6 dwg, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing zinc meso-tetra-aminotetrabenzoporphyrinate. The method involves reaction of a phthalic anhydride with aminoacetic acid to obtain N-carboxymethylphthalimide, from which while heating with zinc oxide, a zinc salt of N-carboxymethylphthalimide is obtained. The obtained salt reacts with phthalimide at high temperature from 240°C to 320°C for 2-2.5 hours, followed by treatment of the reaction mass with hydrazine hydrate in pyridine solution at boiling point thereof for 1.5-2 hours.

EFFECT: high safety of the process owing to prevention of formation of dangerous and toxic acetic and nitric acids, high cost-effectiveness of the process and obtaining an end product of high purity.

3 dwg

Up!