A new [NiII4] distorted cubane assembly on four solvent derived μ3-OMe corners: Solvent dependent formation and cleavage of exogenous bridges

Debashree Mandal, Chang Seop Hong, Hyoung Chan Kim, Hoong Kun Fun, Debashis Ray

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24 Citations (Scopus)

Abstract

A new Ni4 distorted cubane complex [Ni43-OMe)4Q4(MeOH)4] (1) (where Q- is the anion of 8-quinolinol) is obtained from the reaction of NaQ with Ni(OAc)2 · 4H2O in refluxing MeOH via solvent derived μ3-OMe assisted self-assembly of four nickel(II) centres. The periphery of [Ni4(OMe)4] cubane is covered by four Q- and four MeOH molecules. This methanol specific reaction is not supported in solvent glycinol (Hgl; NH2(CH2)2OH), an amine substituted ethanol, producing monomeric [NiQ2(Hgl)2] · 2H2O (2 · 2H2O) instead and is able to cleave 1 to yield 2 · 2H2O. The cryomagnetic susceptibility data of powdered 1 can be modeled by a two J equation yielding J1 = -1.8(1) cm-1, J2 = 3.9(1) cm-1 and g = 2.24.

Original languageEnglish
Pages (from-to)2372-2378
Number of pages7
JournalPolyhedron
Volume27
Issue number11
DOIs
Publication statusPublished - 2008 Aug 4

Bibliographical note

Funding Information:
D. M. acknowledges the Council of Scientific and Industrial Research, New Delhi, India for her research fellowship. C. S. H. acknowledges the financial support from the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2005-070-C00068). H.C.K. and H-K.F. acknowledge the financial supports from the Korean Government and the Government of Malaysia.

Keywords

  • 8-Quinolinolate
  • Bridge cleavage
  • Glycinol coordination
  • Tetranuclear
  • μ-Methanolate

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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