Spectroscopic and thermal studies of [Fe(dioximato)2(amine) 2] mixed chelates

Cs Várhelyi, A. Kovács, D. Nemcsok, Z. Németh, E. Kuzmann, A. Vértes, K. Vékey, Cs Várhelyi, Gy Pokol

Research output: Article

7 Citations (Scopus)

Abstract

A number of mixed complexes of the type [Fe(DioxH)2(amine)2] (DioxH2 = glyoxime, dimethylglyoxime, methylethylglyoxime and benzylmethylglyoxime; amine = imidazole, benzimidazole, 2-methylimidazole, β- and γ-picoline, pyridine, p-toluidine, p-Cl-aniline, α-naphthylamine) have been prepared and characterised by FTIR, Mössbauer and mass spectroscopy. The structural and vibrational characteristics of the title complexes were modelled by quantum chemical (DFT) computations on [Fe(methylglyoximato)2(pyridine)2]. All the methods support strong Fe-N donor acceptor interactions and O-H ⋯ O hydrogen bonding in the complexes. The thermal behaviour of these non-electrolytic compounds was studied by TG, DTA and DTG measurements indicating a decomposition mechanism of [Fe(DioxH)2(amine)2] → [Fe(DioxH)2(amine)] → [Fe(DioxH)2] → [Fe(DioxH)] → alkyl-, aryl-nitriles and hydrocarbon decomposition products.

Original languageEnglish
Pages (from-to)379-392
Number of pages14
JournalJournal of Coordination Chemistry
Volume60
Issue number4
DOIs
Publication statusPublished - jan. 1 2007

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry

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