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

Research output: Contribution to journalArticle

20 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

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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