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Preparation of SNS Cobalt(II) Pincer Model Complexes of Liver Alcohol Dehydrogenase
Published on: March 19, 2020
catena-Poly[[[triaquasulfatocobalt(II)]-mu-4,4'-bipyridine] ethane-1,2-diol solvate]
Wen-Jie Lu1, Yi-Min Zhu, Kai-Long Zhong
1Department of Chemical and Environmental Engineering, Wuyi University, Jiangmen, Guangdong Province, People's Republic of China. wjlu_56@yahoo.com.cn
Abstract:
In the title compound, {[Co(SO4)(C10H8N2)(H2O)3].C2H6O2}n, each CoII center is octahedrally coordinated by two N atoms from two bridging 4,4'-bipyridine (bipy) ligands and four O atoms, one from a monodentate sulfate ligand and three from aqua ligands. The bipy ligands occupy special positions of site symmetry -1 and bridge adjacent cobalt(II) centers to form one-dimensional linear coordination chains. Adjacent chains are arranged in a cross-like fashion around the mid-point of the bipy ligands, resulting in a three-dimensional supramolecular array.
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When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.

