In the crystal structure of the title salt, [Ni(C(3)H(3)O(4))(C(16)H(36)N(4))]ClO(4)·CH(3)CN, the macrocycle folds around the Ni(II) atom, which is also chelated by the carboxyl-ate monoanion. The geometry is a distorted NiN(4)O(2) octa-hedron. The formula units are connected by N-H⋯O hydrogen bonds into centrosymmetric dimers. Further N-H⋯O and O-H⋯O hydrogen bonds link the complex mol-ecules and the perchlorate ions.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3009135PMC
http://dx.doi.org/10.1107/S1600536810042637DOI Listing

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