Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
ChemSusChem. 2013 Jan;6(1):65-9. doi: 10.1002/cssc.201200682. Epub 2013 Jan 3.
A dyad complex has been constructed as a soluble molecular model of a heterogeneous cobalt-based oxygen-evolving catalyst (Co-OEC). To this end, the Co(4)O(4) core of a cobalt-oxo cubane was covalently appended to Re(I) photosensitisers. The resulting adduct was characterised both in the solid state (by X-ray diffraction) and in solution using a variety of techniques. In particular, the covalent attachment of the Re(I) moieties to the Co(4)O(4) core promotes emission quenching of the Re(I) photocentres, with implications for the energy and electron transduction process of Co-OEC-like catalysts.
已构建了一种二联体配合物，作为异质钴基氧析出催化剂（Co-OEC）的可溶性分子模型。为此，将钴-氧立方烷的 Co(4)O(4)核共价连接到 Re(I)敏化剂上。通过各种技术对得到的加合物进行了固态（通过 X 射线衍射）和溶液状态下的表征。特别地，Re(I)部分与 Co(4)O(4)核的共价连接促进了 Re(I)光中心的发射猝灭，这对 Co-OEC 类似催化剂的能量和电子传递过程有影响。
