Conformation‐Controlled Diplatinum(II)–Ferrocene Dyads to Achieve Long‐Lived Charge‐Separated States |
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| Authors: | Dr Ge‐Xia Wang Dr Ke Feng Prof Maxwell J Crossley Dr Ling‐Bao Xing Dr Hong‐Yan Xiao Prof?Dr Wen Li Prof?Dr Chen‐Ho Tung Prof Li‐Zhu Wu |
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| Institution: | 1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, P. R. China;2. School of Chemistry, The University of Sydney, NSW, Australia |
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| Abstract: | Square‐planar polypyridyl platinum(II) complexes possess a rich range of structural and spectroscopic properties that are ideal for designing artificial photosynthetic centers. Taking advantage of the directionality in the charge‐transfer excitation from the metal to the polypyridyl ligand, we describe here diplatinum(II)–ferrocene dyads, open‐butterfly‐like dyad 1 and closed‐butterfly‐like dyad 2 , which were designed to understand the conformation and orientation effects to prolong the lifetime of charge‐separated state. In contrast to the open‐butterfly‐like dyad 1 , the closed‐butterfly‐like dyad 2 shows three‐times long lifetime of charge separated state upon photoexcitation, demonstrating that the orientation in the rigid structure of dyad 2 is a very important issue to achieve long‐lived charge separated state. |
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| Keywords: | dyads ferrocene long-lived charge separation photoinduced electron transfer platinum(II) complexes |
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