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The method the quench of doing electronic excitation of the coloration group content organic molecule in the optical active composition
The method the quench of doing electronic excitation of the coloration group content organic molecule in the optical active composition
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机译:光学活性组合物中着色基团含量有机分子进行电子激发的猝灭方法
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摘要
The photostabilizing electronic excited state energy - particularly singlet state energy from a UV-absorbing molecule has been found to be readily transferred to (accepted by) ±-cyanodiphenylacrylate compounds of formulas (I) and (V) having an alkoxy radical preferably in the four (para) position (hereinafter methoxycrylenes) on one or both of the phenyl rings: wherein at least one of R 1 and R 2 is a straight or branched chain C 1 -C 12 alkoxy radical, preferably C 1 -C 8 , more preferably C 1 -C 4 , and most preferably methoxy, and any non-alkoxy radical R 1 or R 2 is hydrogen; and R 3 is a straight or branched chain C 1 -C 24 alkyl radical, preferably C 12 -C 24 , more preferably C 20 ; wherein A and B are the same or different and are selected from the group consisting of oxygen, amino and sulfur; R 1 and R 3 are the same or different and are selected from the group consisting of C 1 -C 30 alkyl, C 2 -C 30 alkylene, C 2 -C 30 alkyne, C 3 -C 8 cycloalkyl, C 1 -C 30 substituted alkylene, C 2 -C 30 substituted alkyne, aryl, substituted aryl, heteroaryl, heterocycloalkyl, substituted heteroaryl and substituted heterocycloalkyl; R 2 is selected from the group consisting of C 1 -C 30 alkyl, C 2 -C 30 alkylene, C 2 C 30 alkyne, C 3 -C 8 cycloalkyl, C 1 -C 30 substituted alkyl, C 3 -C 8 substituted cycloalkyl, C 1 -C 30 substituted alkylene, C 2 -C 30 substituted alkyne; R 4 , R 5 , R 6 and R 7 are the same or different and are selected from the group consisting of C 1 -C 30 alkoxy straight chin on branched and a, b, c and d are each either 0 or 1, and a, b, c and d add up to 1, 2, 3, or 4.
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