Crystal structure of bis(bis{(E)-[(6-{(E)-[(4-fluorobenzyl)imino]methyl}pyridin-2-yl)methylidene](4-fluorophenyl)amine}nickel(II)) tetra­bromide nona­hydrate

Acta Crystallographica Section E: Crystallographic Communications

Hossain, M.A.¹  Powell, D.R.²  Rhaman, M.M.³  Basaran, I.⁴ 

[1]Biochemistry, University of Oklahoma, 101 Stephenson Parkway, Norman, OK, 73019, USA

[2]Department of Chemistry &

[3]Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS, 39212, USA

[4]Department of Chemistry, Balikesir University, 10145, Balikesir, Turkey

关键词: CRYSTAL STRUCTURE;    NICKEL(II) COMPLEX;    OCTAHEDRAL GEOMETRY;    SCHIFF BASE;    [PI]-[PI] INTERACTIONS;    PYRIDINE DERIVATIVES;   

DOI  :  10.1107/S2056989015021519

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the title complex, [Ni(C21H17F2N3)2]2Br4·9H2O, there are two independent metal complexes per asymmetric unit and two ligands per metal complex. The structural features (bond lengths and angles) of the two complexes are almost identical. In each complex, the nickel(II) ion is coordinated in an octa­hedral environment by six N atoms from two chelating (9E)-N-({6-[(E)-(4-fluoro­benzyl­imino)­meth­yl]pyridin-2-yl}methyl­ene)(4-fluoro­phen­yl)methanammine ligands. The Ni—N bond lengths range from 1.973 (2) to 2.169 (2) Å, while the chelate N—Ni—N angles range from 77.01 (10) to 105.89 (9)°. Additionally, there are four bromide anions and nine solvent water mol­ecules within the asymmetric unit. The water mol­ecules form a hydrogen-bonded network, displaying C—H⋯O, C—H⋯Br, O—H⋯Br, O—H⋯O and O—H⋯F inter­actions into layers parallel to (111). In each unit, the fluoro­phenyl rings of one ligand are stacked with the central ring of the other ligand via π–π inter­actions, with the closest centroid-to-plane distances being 3.445 (5), 3.636 (5), 3.397 (5) and 3.396 (5) Å.

【 授权许可】

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