Electrogenerated chemiluminescence of cyclometalated iridium(III) complexes with derived β-acetylacetone as ancillary ligand
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- 作者：Shunqin Xia ; Danjuan Han ; Hongfang Gao ; Ying Zhao ; Honglan Qi ; honglanqi@snnu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Chengxiao Zhang ; cxzhang@snnu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Electrogenerated chemiluminescence ; Iridium(III) complex ; Electrochemistry ; Water
- 刊名：Journal of Electroanalytical Chemistry
- 出版年：2016
- 出版时间：15 September 2016
- 年：2016
- 卷：777
- 期：Complete
- 页码：101-107
- 全文大小：988 K
文摘
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Two cyclometalated iridium(III) complex, (pq)2Ir(sa) and (pq)2Ir(psa), were synthesized and characterized.
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(pq)2Ir(sa) and (pq)2Ir(psa) show good solubility in water, lower oxidation potential and higher ECL efficiency.
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Small amount of water can greatly increase the ECL intensity of two complexes in acetonitrile solvent.
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The water-enhanced ECL pathway in the presence of TPA is proposed as a double coreactant ECL pathway.