To provide a color-forming composition and a color-forming curable composition each of which forms high color upon exposure to light and has small fading after the color formation, and a lithographic printing plate precursor capable of undergoing on-press development, which forms high color upon exposure to light, which has a high plate inspection property, and which provides a lithographic printing plate of high printing durability.
A color-forming composition containing (A) a radical generator, (B) a compound represented by formula (1) shown below and (C) a binder polymer, a color-forming curable composition further containing (E) a polymerizable compound, and a lithographic printing plate precursor comprising an image-recording layer containing the color-forming curable composition.
wherein, in the formula (1), R1 represents a group which reacts with a radical generated from the radical generator (A) to be released and forms a dye after the release, and T represents a nitrogen-containing hetero ring.
4-Substituted 1-Acyloxypyridine-2(1<i>H</i>)-thiones: Experimental and Computational Studies of the Substituent Effect on Electronic Absorption Spectra
作者:Aleksandra Jankowiak、Piotr Kaszynski
DOI:10.1021/jo901522r
日期:2009.10.2
practically substituent independent. Both absorption bands exhibit a modest negative solvatochromic effect. The experimental absorption energies correlate better with excitation energies calculated for N-acetyloxy analogues 2 with the ZINDO//DFT than with the TD-DFT//DFT method. Calculations for a series of 12 N-acetates 2 predict the most blue-shifted π → π* transition for the alkoxy substituent and most