偶氮染料分子的电子结构与生物降解活性 (Ⅱ)──取代基非定域活性对偶氮键还原裂解的影响

Electronic Structure and Biodegradability of Azo \=Dyestuff Molecule() \= The Effect of the Non\|localized Activity of Substituents\= on the Reduction Breakdown of Azo\|bond

通过ＭＮＤＯ计算及相关实验结果，用取代基非定域活性概念分析了羟基、氨基及硝基在—ＮＮ—上的电子效应，阐述了取代基影响偶氮键生物降解活性的电子结构机理。

The electronic effect of hydroxy\|, amino\|, nitro\| on the azo\|bond was studied with non\|localized activity of substitutents by means of MNDO calculated results and experimental results, then the electronic structure mechanism about the effect of substitutents on the biodegradability was described, further, the \%Q\%\-A(their values will reflect chemical activity of the atoms in the molecule) in MNDO statistical population analysis was regarded as an electronic structure parameter relating to the biodegradability of azo\|bond.\=