Research Article: Ethyl­enediammonium tetra­kis({2,2′-[ethane-1,2-diylbis(nitrilo­methyl­idyne)]diphenolato}nickel(II)) bis­(perchlorate) dimethyl­formamide monosolvate

Date Published: June 01, 2010

Publisher: International Union of Crystallography

Author(s): Gervas Assey, Yilma Gultneh, Ray J. Butcher.


The title compound, (C2H10N2)[Ni(C16H14N2O2)]4(ClO4)2·C3H7NO, crystallizes with four Ni(salen) mol­ecules {salen is 2,2′-[ethane-1,2-diylbis(nitrilo­methyl­idyne)]diphenolate}, one ethyl­enediammonium cation (actually two half-cations, each located on a center of inversion), two perchlorate anions and one dimethyl­formamide solvent mol­ecule in the asymmetric unit. Each NiII cation in the Ni(salen) complex is four-coordinated by two imine N atoms and two phenolate O atoms from the tetra­dentate ligand. The Ni(salen) units form parallel slipped stacks with Ni⋯Ni separations of 3.4541 (4) and 3.6442 (6) Å. The crystal packing is stabilized by inter­molecular hydrogen bonds between the ammonium H atoms and the perchlorate and salen O atoms, which generate a three-dimensional structure.

Partial Text

For applications of nickel–Schiff base complexes in homogeneous and heterogeneous catalysis, see: Santos et al. (2000 ▶); Silva et al. (2002 ▶); Yoon & Burrows (1988 ▶); Mitra & Chatterjee (1999 ▶). For other properties of Ni(salen) complexes, see: Abe et al. (2006 ▶); Gaetani Manfredotti & Guastini (1983 ▶); Pahor et al. (1976 ▶); Prabhakar et al. (2006 ▶); Santos et al. (2000 ▶); Silva et al. (2002 ▶). For the structures of Ni(salen) co-crystallization complexes, see: Giacomelli et al. (1982 ▶); Ryaza­nov et al. (2001 ▶); Skovsgaard et al. (2005 ▶); Feng et al. (2007 ▶); Sun et al. (1991 ▶); Lutz (2003 ▶).




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