Abstract
In the title complex, [Co(C5HF6O2)2(C12H9BrN2)], the CoII atom exhibits a pseudo-octahedral coordination geometry, comprising two N-donor atoms from a bidentate chelate (4-bromophenyl)(2-pyridylmethylidene)amine (ppaBr) ligand [Co—N = 2.098 (2) and 2.209 (2) Å] and four O-donor atoms from two bidentate chelate 1,1,1,5,5,5-hexafluoropentane-2,4-dionate (hfac) ligands [Co—O range = 2.0452 (19)–2.0796 (19) Å]. The packing of the structure involves weak π–π interactions between the pyridyl and benzene rings of neighbouring ppaBr ligands [centroid–centroid distance = 3.928 (2) Å] and interactions between the Br atom on the ppaBr ligand and the hfac ligand [Br⋯C = 3.531 (2) Å].
Highlights
In this paper we report the synthesis and structure of [Co(hfac)2(ppaBr)] [hfac = 1,1,1,5,5,5-hexafluoropentane-2,4-dionato; ppaBr = (4-bromo-phenyl)pyridin-2-ylmethyleneamine]
The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry
The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2
Summary
Soponratb and Harry Adamsc a Molecular Technology Research Unit, Department of Chemistry, Walailak. University, Thasala, Nakhon Si Thammarat 80161, Thailand, bDepartment of Chemistry, Faculty of Science, Taksin University, Songkhla 90000, Thailand, and c. R factor = 0.035; wR factor = 0.090; data-to-parameter ratio = 13.7. In the title complex, [Co(C5HF6O2)2(C12H9BrN2)], the CoII atom exhibits a pseudo-octahedral coordination geometry, comprising two N-donor atoms from a bidentate chelate (4bromophenyl)(2-pyridylmethylidene)amine (ppaBr) ligand [Co—N = 2.098 (2) and 2.209 (2) Å] and four O-donor atoms from two bidentate chelate 1,1,1,5,5,5-hexafluoropentane-2,4dionate (hfac) ligands [Co—O range = 2.0452 (19)–. – interactions between the pyridyl and benzene rings of neighbouring ppaBr ligands [centroid–centroid distance =. 3.928 (2) Å] and interactions between the Br atom on the ppaBr ligand and the hfac ligand [Br C = 3.531 (2) Å]
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