Synthesis and near infrared electrochromic properties of metallodithiolene complexes
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- 作者：Xiuhong Chen ; Wenqiang Qiao ; Bo Liu ; Juntao Ren ; Zhiyuan Wang
- 关键词：near ; infrared electrochromism ; metallodithiolene complex ; spectroelectrochemistry ; electrochromic switching
- 刊名：Science China Chemistry
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：60
- 期：1
- 页码：77-83
- 全文大小：1179KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry/Food Science, general;
- 出版者：Science China Press
- ISSN：1869-1870
- 卷排序：60
文摘
Four metallodithiolene complexes [4,8-bis(octyloxy)-1,3,5,7-tetrathia]·di[1,1′-bis(diphenylphosphino)ferrocene·palladium(II)] (3), [4,8-bis(octyloxy)-1,3,5,7-tetrathia]di[1,3-bis(diphenylphosphino)propane·nickel(II)] (4), [4,8-bis(octyloxy)-1,3,5,7-tetrathia] ·[1,1′-bis(diphenylphosphino)ferrocene·palladium(II)]·[1,3-bis(diphenylphosphino)propane·nickel(II)] (5) and di[4,8-bis (octyloxy)-1,3,5,7-tetrathia]·[1,1′-bis(diphenylphosphino)ferrocene·palladium(II)]·nickel(II) (6) were synthesized and the near-infrared (NIR) electrochromic properties were studied. The spectroelectrochemical spectra and the electrochromic parameters such as optical contrast, switching time, optical density change, electrochromic efficiency and optical attenuation of complexes 3–6 were investigated in detail. The symmetric binuclear complex 4 showed relatively high electrochromic efficiency of 63.0 and 75.4 cm2/C both in the two oxidation states. The complexes exhibited excellent electroactive/electrochromic stability characterized by chronoamperometry (>4000 cyclic switches).