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作 者:孟庆华[1] 项良[1] 罗先金[1] 黄德音[1]
出 处:《染料工业》2002年第3期15-17,共3页Dyestuff Industry
摘 要:采用MOPAC程序包中的半经验AMI程序,对蒽醌染料单体的空间构型进行优化,计算出各化学键的键级。由于两个羰基的影响,蒽醌的分子中环不显示芳香性。中环上的单键和亚胺基与烷基相连的N-C键显示出较弱键级,它们在高温热分解时可能率先断裂。热重分析曲线证实了热分解途径。The molecule geometry of monomeric anthraquinone dyes were fully optimized on the basis of AMI model and the bond orders of them were calculated. The 'mid-ring' of anthraquinone did not show aromaticity. The single bonds in the 'mid-ring' of anthraquinone and the N-C bonds of the substituents exhibited a weaker bonding force and were easily ruptured at high temperature. The thermal decomposition pathways of monomeric anthraquinone dyes were supported by TG curves.
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