The structure and photophysics of di-iodo-zinc(II) complexes of long alkyl chain substituted imidazolyl motif of arylazoimidazoles and the DFT computation
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- 作者：Chandana Sen ; Bharati Chowdhuri ; Chiranjit Patra ; Debashis Mallick1 ; Chittaranjan Sinha ; c_r_sinha@yahoo.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Zinc(II)-arylazoimidazoles ; X-ray structures ; Photochromism ; Transient absorption ; DFT computation
- 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
- 出版年：2015
- 出版时间：5 December 2015
- 年：2015
- 卷：151
- 期：Complete
- 页码：443-452
- 全文大小：1865 K
文摘
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Long chain alkyl group appended 1-alkyl-2-(arylazo)imidazole complexes of Zinc(II).
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Spectroscopic and X-ray structure determination of the complexes.
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Photochromism trans-to-cis and thermal changes cis-to-trans in the S1 state.
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Excitation of 蟺–蟺∗ state to S2 state relaxes to S1 state and decays to vibrational hot S0 state. The complexes exhibit three decay periods.
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DFT and TD-DFT computation explain the mechanism of photoisomerisation.