Polymeric and mixed ligand complex of cobalt(II) and 4-hydroxybenzhydrazide: Crystal structure and vibrational spectroscopy

Reaction of CoSO 4 and 4-hydroxybenzhydrazide in water/methanol solution resulted in polymeric complex with C O and NH 2 groups of organic ligand, two water molecules and two oxygen atoms of two sulfate anions in metal coordination sphere. The X-ray analysis revealed that the complex is in the form...

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Published inJournal of molecular structure Vol. 982; no. 1; pp. 1 - 8
Main Authors Zasłona, Halina, Drożdżewski, Piotr, Kubiak, Maria
Format Journal Article
LanguageEnglish
Published Elsevier B.V 08.10.2010
Subjects
4-hydroxybenzhydrazide
Anions
Deuteration
DFT calculations
Normal modes
4-hydroxybenzhydrazide
Deuteration
Normal modes
DFT calculations
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Summary:Reaction of CoSO 4 and 4-hydroxybenzhydrazide in water/methanol solution resulted in polymeric complex with C O and NH 2 groups of organic ligand, two water molecules and two oxygen atoms of two sulfate anions in metal coordination sphere. The X-ray analysis revealed that the complex is in the form of polymer chain of the helical structure formed due to sulfate bridge geometry and intra-chain hydrogen bonds. The variety of coordinated ligands is reflected in the vibrational spectra where six different metal–ligand modes were found. The bands related to stretching and bending vibrations of NH 2, NH, OH groups as well as water molecules were located with help of hydrogen–deuterium substitution. For proposed band assignment the animation of DFT calculated normal modes was employed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-2860
1872-8014
DOI:10.1016/j.molstruc.2010.06.027