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A hydrogen-bonded dimer of a novel Co(II) complex of monoethanolamine with thiocyanate: synthesis, spectra, thermal behaviour and crystal structure

Date

2002

Author

Yılmaz, Veysel T.
Andac, O
Karadag, A
Harrison, WTA

Metadata

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Abstract

A strongly hydrogen-bonded dimer of the Co(II) complex of monoethanolamine, [Co(meaH)(3)][Co(mea)(meaH)(2)](SCN)(3), was synthesized and characterized by single crystal X-ray diffractometry, UV-Vis and IR spectroscopy. The complex consists of [Co(meaH)(3)](2+) and [Co(mea)(meaH)(2)](+), and three SCN- anions. In each cation, the Co(II) ion is coordinated by a distorted octahedral arrangement of three monoethanolamine ligands in a bidentate manner. One of the monoethanolamine ligands in the [Co(mea)(meaH)(2)](+) cation is in the deprotonated form by losing its hydroxyl hydrogen. The complex cation units are held together by three strong O-H...O bonds formed between three ethanolic oxygens forming a hydrogen-bonded dimer of [Co(meaH)(3)](2+)...[Co(mea)(meaH)(2)](+). The hydrogen bonding O...O distances are significantly short at ca. 2.41(4) Angstrom. The SCN- anions are involved in hydrogen bonding connecting the dimeric units to give a three dimensional infinite network. During the thermal decomposition process, the complex loses the monoethanolamine ligands in the first stage, followed by the decomposition of the SCN- anions at higher temperatures to give metallic cobalt as the end product. (C) 2002 Elsevier Science B.V. All rights reserved.

Source

Journal of Molecular Structure

Volume

641

Issue

02.Mar

URI

https://doi.org/10.1016/S0022-2860(02)00105-9
https://hdl.handle.net/20.500.12712/21955

Collections

  • Scopus İndeksli Yayınlar Koleksiyonu [14046]
  • WoS İndeksli Yayınlar Koleksiyonu [12971]



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