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metal-organic compounds
The formal pseudo-octahedral coordination around the NiII atom in the title complex, [Ni(NO3)2(OPCy3)2], places the OPCy3 ligands (C18H33OP; Cy is cyclohexyl, C6H11) in an unusual, mutually cis conformation. This may be rationalized by viewing each bidentate NO3 group as occupying only one site of a tetrahedral coordination shell.