Post-modification of 2-formylthiophene based heterocyclic azo dyes
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- 作者：Dan Xua ; dellarish@aliyun.com" class="auth_mail" title="E-mail the corresponding author ; Zhu Lia ; 383425262@qq.com" class="auth_mail" title="E-mail the corresponding author ; Yu-Xin Penga ; 523740344@qq.com" class="auth_mail" title="E-mail the corresponding author ; Jiao Genga ; gengjiao@nju.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Hui-Fen Qianb ; qhf@njtech.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Wei Huanga ; whuang@nju.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Post-modification ; Azo dye ; Schiff base ; Knoevenagel condensation ; Acetal ; Crystal structure
- 刊名：Dyes and Pigments
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：133
- 期：Complete
- 页码：143-152
- 全文大小：1939 K
文摘
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Three sets of novel post-modification S-containing heterocyclic azo dyes are described.
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Representative crystal structures for every series are obtained and compared.
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Variation of π-conjugated length and polarity shows different λmax and solvatochromism.
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An α,β-unsaturated cyanoacetic ester has the largest bathochromic shift of 87 nm.