Racemic dipotassium di-μ2-hydroxido-bis-{[N,N-bis-(carboxyl-atometh-yl) leucin-ato-4 N,O,O′,O′′]cobaltate(III)} tetra-hydrate

Hendrik G. Visser, Walter Purcell, Alfred Muller, J. Marthinus Janse Van Rensburg, Phillip Molosia

Research output: Contribution to journalArticlepeer-review


The racemic title compound, K2[Co2(C10H13NO6)2(OH)2]·4H2O, exhibits a slightly distorted octa-hedral coordination of the Co atoms, possibly because of constraints imposed by the tetra-dentate ligand. The ten-coordinate potassium cation provides a link between the ligating anions of the dinuclear dianion via the carbonyl O atoms of the N,N-bis-(carboxyl-ato-meth-yl)leucinate ligands, forming a polymeric three-dimensional network. The complex crystallizes in the ortho-rombic space group, Cmca, resulting in Co dimers situated around special positions in the unit cell, which leads to a 50% disorder of the bridging hydroxido H atoms and the isopropyl substituents.

Original languageEnglish
Pages (from-to)m2998-m2999
JournalActa Crystallographica Section E: Structure Reports Online
Issue number12
Publication statusPublished - 9 Nov 2007
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics


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