Abstract
The molecule of the title complex, [Ni2(C21H15N3O5)2(H2O)4]·4C3H7NO, is located on an inversion centre. This results in a dimeric NiII complex, with the two NiII atoms bridged by phenolate O atoms. The tridentate ligand is chelated to each NiII atom via one N and two O atoms of the iminolate form of the hydrazide moiety, which has the same conformation as the free ligand. The coordination geometry around each NiII ion is slightly distorted octahedral. A supramolecular three-dimensional architecture is created by dominant intermolecular O—H⋯N, O—H⋯O and C—H⋯O hydrogen-bonding interactions. These are augmented by two C—H⋯π interactions and a π–π interaction with a centroid–centroid distance of 3.681 (2) Å.
Highlights
The molecule of the title complex, [Ni2(C21H15N3O5)2(H2O)4]4C3H7NO, is located on an inversion centre. This results in a dimeric NiII complex, with the two NiII atoms bridged by phenolate O atoms
The tridentate ligand is chelated to each NiII atom via one N and two O atoms of the iminolate form of the hydrazide moiety, which has the same conformation as the free ligand
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x, −y+1, −z+1; (iii) x−1, y, z; (iv) x+1, y, z; (v) −x+1, −y+1, −z
Summary
Bis{l-N-[(E)-4-benzyloxy-2-oxidobenzylidene]-4-nitrobenzenecarbohydrazidato}bis[diaquanickel(II)] M. R. Prathapachandra Kurupa and Seik Weng Ngc,d a Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India, bDepartment of Chemistry, Faculty of Science, Eastern University, Sri Lanka, Chenkalady, Sri Lanka, cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, and dChemistry Department, King R factor = 0.048; wR factor = 0.138; data-to-parameter ratio = 17.7.
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