SU691478A1 - Electrochemiluminescent composition - Google Patents

Description

(54) ELECTROCHEMILUMINOSCENT COMPOSITION

... -. The invention relates to liquid phase 1 electrochemistry luminescent materials that can be used for electrochemical and electrochemical fluorescent indicator systems, as well as in computer technology and in automated control systems. Electrochemiluminescent compositions are widely known, contain N, N dimethylformamide, apetonitrile, and a number of other non-aqueous anrotonic solvents as solvents, quaternary alkyl ammonium carbonates or alkaline metal halides as electrolyte, and complex organic-active compounds as electrolyte. peeks, as well as polyshaklichesky aromatic hydrocarbons or heterocyclic compounds 1 2 h. From the electrochemiluminescent compositions described in the literature, which can be used to create various indicatorial systems, as well as in input-output devices in any way. According to the composition of the ingredients, the most widely used composition of the electrochemical fluorescent composition 4}, containing, in%: Electrolyte - alkaline metal ohp 0, O5-O, 5 Electroactive compound ( activator) of the general formula 0, O5-2 V j VK, R is phenyl or naphthyl; R is M or CH; and - the same or hydrogen, methoxy or amino groups; trunkEverything else. The known composition has the following brightness and spectral characteristics: The intensity of the electrochemuminescence during the excitations with rectangular bipolar pulses with amplitudes of 4.5 P positive pulse and 7 V negative pulse, resp. unit.1 Electrochemiluminescence-Violet color The intensity and stability of the electrochemiluminescence of the indicated composition is low, which complicates its effective use in the above-mentioned devices and devices. In addition, this composition has a relatively narrow spectral range of radiation (in the violet region of the 84 spectrum), which hinders its widespread use in instruments and devices where radiation is needed in a wider spectral range. The aim of the invention is to create such an electrochemiluminescent composition containing M, N - dimethylformamide as a solvent, an alkali metal halide as an electrolyte and an electroactive compound that would have a higher intensity and stability of radiation, as well as a wider spectral range of luminescence. in comparison with the ibestnoy electrochemiluminescence composition. The goal set is to achieve an electrochemiluminescent composition containing a scavenger - N, N - dimethyl (| yurmamid, electrolyte - halogen, and a silky metal - lithium chloride and an electroactive compound of total I.

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a is phenyl or naphthyl; - where T R CH or N; identical or different hydrogen, chlorine, alkyl, alkoxy. with the following ratios of the indicated ingredients, wt.%: electroactive combination of the formula I 0.05-4.0 Electrolyte 0.05-1.0 apparently associated with an increase in the conjugation chain as compared with the electroactive compound introduced into the prototype. Example 1. For the obtained electrochemiluminescent composition in 1OO ml of dry N, N-dimethylformamide of qualification, chemically pure. 3.3 g of the electroactive compound of the formula

and 0.84 / g of electrolyte - lithium chloride qualification of h.ch. The resulting solution is placed in a sealed electrochemiluminescent cell, the electrodes of which are served with alternating sign amplitudes of 6.3 R, or rectangular voltage pulses of both polarities with the following parameters: duration and amplitude of a positive pulse 1 s and 3 V, duration and

negative pulse amplitude 0.1 s and .6 V. The resulting electrochemiluminescent composition had the following spectral and spectral characteristics:

The intensity of the glow

REL. units 4-4,5

Electrochemistry colorClines Violet.

Example 2: For the preparation of an electrochemiluminescent composition in

lOO MP dry N, N-dimethylformamide qualification h.ch. dissolve 3.76 g

compounds 4

h

.

about

Claims (4)

and P, 84g of electropita - lithium chloride qualification h.h. The remaining experimental conditions are similar to those shown in example 1, the resulting electrochemistry composition had the following brightness and spectral characteristics Emission intensity, rel. units 4.5 11light Electrochemistry Green. Higher values of the lighting characteristics of an electrochemilumine composition can create better and more effective instruments and devices based on an electrical chemiluminescence effect, or, at a given intensity of luminescence, produce smaller electrochemiluminous devices. In addition, the expansion of the spectral radiation range of the electrochemiluminescent composition allows the creation of electrochemiluminescence devices. working in a wider range of visible spectrum. The technology for creating the proposed composition does not vary as compared with iopaouem for a known composition. An invention of an electrochemiluminescence composition containing a solvent — N, N-dimethylformamide, an electrolyte — alkali metal logidide — lithium chloride — and an electroactive compound, in order to increase the brightness and stability of the radiation and expand the spectral region of the electroluminescence as an electroactive compounds it contains a compound of the general formula -Ok to W, Have JEl where T is phenyl or naphthyl; CH or N; - identical or different hydrogen, chlorine, alkyl C ,, alkoxy group With the following ratios of ingredients, weight,%: Electroactive compound of formula IO, O5-4, O. Electrolyte 0.05-1.0 Solvent Else. № № № NO 19 Sources of information, rintye taken into account during the examination 1. The author's certificate of the USSR 338111, cl. C O9 C 11 / O 6, 1972. 2. Authors certificate of the USSR 3272.27, cl. From 09 K 11 / O6, 1972. 3. Authors certificate of the USSR 336991, cl. S. 09 K 11/06, 1972. 4.A vneskre witnessstroy USSR 531839, b. From 09 to 11/06, published 76 (prototype).