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Synthesis, Crystal Structure, and Visible Light Responses of Ti4Cu4‐Oxo Clusters with Mixed Valence Copper Ions
Chinese Journal of Chemistry ( IF 5.4 ) Pub Date : 2019-12-09 , DOI: 10.1002/cjoc.201900386 Simin Hou 1, 2 , Shumei Chen 1 , Jian Zhang 2 , Lei Zhang 2
Chinese Journal of Chemistry ( IF 5.4 ) Pub Date : 2019-12-09 , DOI: 10.1002/cjoc.201900386 Simin Hou 1, 2 , Shumei Chen 1 , Jian Zhang 2 , Lei Zhang 2
Affiliation
In order to extend the absorption spectrum of polyoxo‐titanium clusters into the visible region, two new heterometal‐oxo clusters Ti4CuII2CuI2(μ3‐O)6(benzoate)10(MeCN)4 (PTC‐153) and Ti4CuII2CuI2(μ3‐O)6(benzoate)8(CH3COO)2(MeCN)4 (PTC‐154) were successfully synthesized. Single‐crystal X‐ray diffraction and X‐ray photoelectron spectroscopy studies showed that these two heterometallic Ti4Cu4‐oxo clusters possessed Chinese knot‐shape structure and mixed valence Cu1+/2+ ions. UV‐visible spectroscopy analysis demonstrated that the visible light region absorption of PTC‐153 and PTC‐154 could be significantly enhanced by doping copper. Furthermore, their visible‐light driven photocurrent responses were studied by using samples of PTC‐153 and PTC‐154 as electrode precursors.
更新日期:2019-12-09