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[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Chlorido[2,2'-(oxydimethyl-ene)-dipyridine]copper(II)
Abstract:
The asymmetric unit of the title compound, [CuCl(C(12)H(12)N(2)O)][CuCl(C(12)H(12)N(2)O)(H(2)O)](ClO(4))(2), contains two different discrete cations. In one cation, the Cu(II) ion is coordinated in a slightly distorted square-planar geometry, while in the other the Cu(II) ion is in a slightly distorted square-pyramidal environment. In the crystal structure, there are O-H⋯O hydrogen bonds between coordinated water mol-ecules and perchlorate anions. Both types of cations are linked into one-dimensional chains along the b axis by weak electrostatic Cu⋯Cl inter-actions, with Cu⋯Cl distances of 2.8088 (16) and 3.2074 (17) Å.
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Structural Isomerism
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can be...

