| 单词 | merocyanine dye |
| 释义 | > as lemmasmerocyanine dye Any of a class of neutral dyes, many of which are used as sensitizers for photographic emulsions, in which a nitrogen atom (usually part of a basic heterocycle) is linked to a carbonyl group (usually part of an acidic heterocycle) by a conjugated chain of carbon atoms. Also merocyanine dye. ΘΚΠ the world > matter > chemistry > organic chemistry > organic dyes > [noun] > miscellaneous others safranine1868 chrome1876 azo-colours1879 azine1887 auxochrome1893 Michler's hydrol1910 hypsochrome1917 merocyanine1937 1937 L. G. S. Booker U.S. Patent 2,078,233 6/1 It has recently been proposed to call the dyes of this new and very large class, merocyanine dyes. 1956 K. M. Hornsby Basic Photogr. Chem. iii. 34 While these merocyanines are..useful sensitisers, those containing a >C=S grouping..can be converted to more complex dyes. 1973 Nature 21 Dec. 508/1 This was achieved in a giant axon using a merocyanine dye; in a stained axon a single action potential gave rise to a fluorescence increase which was detectable with a signal-to-noise ratio greater than 10:1. 1989 BioFactors 2 54/2 Atoms 4 (O), 4, 5, 6 and 1 of these structures comprise a kind of enaminoketone or n=1 merocyanine. < as lemmas |
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