The formal pseudo-octahedral coordination around the Ni-II atom in the
title complex, [Ni(NO3)(2)(OPCy(3))(2)], places the OPCy(3) ligands (
C18H33OP; Cy is cyclohexyl, C6H11) in an unusual mutually cis conforma
tion. This may be rationalized try viewing each bidentate NO3 group as
occupying only one site of a tetrahedral coordination shell.