(IUCr) Crystallography Journals Online

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Acta Cryst. (2007). E63, m2403-m2404 [ doi:10.1107/S1600536807040184 ]

Bis[₂-2,2'-dimethyl-N,N'-bis(2-oxidobenzyl)propane-1,3-diamine]-1⁴O,N,N',O':2²O,O';2²O,O':3⁴O,N,N',O'-bis(N,N'-dimethylformamide)-1O,3O-di-₂-formato-1:2²O:O';2:3²O:O'-trinickel(II)

L. Tatar Yildirim, O. Atakol and G. Kavak

Abstract: The title crystal structure, [Ni₃(C₁₉H₂₄N₂O₂)₂(CHO₂)₂(C₃H₇NO)₂], consists of discrete centrosymmetric homotrinuclear nickel complex molecules. In each molecule, the central Ni^II ion is in a distorted octahedral coordination environment, formed by four O atoms from two chelating DML^2- ligands [DMLH₂ = N,N'-bis(salicylidene)-2,2'-dimethyl-1,3-propanediamine] in the equatorial plane and two O atoms of two symmetry-related formate ligands in the axial positions. The terminal Ni^II ions also have distorted octahedral coordination environments and these are formed by two O and N atoms from chelating DML^2- ligands in the equatorial plane; the axial positions are occupied by O atoms from a dimethylformamide ligand and a formate ligand. The overall result is three edge-shared octahedra in which the closest NiNi distance is 3.0857 (14) Å. The crystal structure is stabilized by weak C-HO hydrogen bonds (agnostic interactions).

Online 22 August 2007

Bis[2-2,2'-dimethyl-N,N'-bis(2-oxidobenzyl)propane-1,3-diamine]-14O,N,N',O':22O,O';22O,O':34O,N,N',O'-bis(N,N'-dimethylformamide)-1O,3O-di-2-formato-1:22O:O';2:32O:O'-trinickel(II)

L. Tatar Yildirim, O. Atakol and G. Kavak

Bis[₂-2,2'-dimethyl-N,N'-bis(2-oxidobenzyl)propane-1,3-diamine]-1⁴O,N,N',O':2²O,O';2²O,O':3⁴O,N,N',O'-bis(N,N'-dimethylformamide)-1O,3O-di-₂-formato-1:2²O:O';2:3²O:O'-trinickel(II)