Structural and spectroscopic characterisation of bis-ligand complexes of iron(II), nickel(II) and nickel(III) with the hydrotris(methimazolyl)borate anion: soft S6 donor sets generating a weak ligand field

Mark Garner, Krzysztof Lewinski, Agnieszka Pattek-Janczyk, John Reglinski, Barbara Sieklucka, Mark D. Spicer*, Maciej Szaleniec

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Reaction of iron(II) and nickel(II) halides with sodium hydrotris(methimazolyl)borate (NaTm) results in the formation of 2 : 1 complexes [M(Tm)2]. Crystallographic characterisation reveals in both cases trigonally distorted octahedral geometry in an S6 donor set. Spectroscopic properties indicate that the Tm ligand generates a weak ligand field, with Dq between that of H2O and Cl- and this is confirmed by the high-spin configuration of the iron(II) complex. Both complexes display classical paramagnetic behaviour. Mössbauer spectroscopy of the iron complex is also consistent with a high-spin complex. Reaction of NiCl 2·6H2O with [Tl(Tm)] results in a small quantity of a material which is crystallographically demonstrated to be [Ni(Tm) 2]Br.

Original languageEnglish
Pages (from-to)1181-1185
Number of pages5
JournalDalton Transactions
Volume2003
Issue number6
DOIs
Publication statusPublished - 12 Feb 2003
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

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