Synthesis and structure of [Co63-Se)5.183-Te) 2.82(PEt3)6]·DMF

Perumal Sekar, James A. Ibers*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


The reaction of [PPh4]3[Co3(Se4)6] with TePEt3 in dimethyformamide at 20°C in the presence of PEt3 gives the molecular cluster [Co63-Se)5.183-Te) 2.82(PEt3)6]·DMF. The cluster has been characterized by single-crystal X-ray diffraction (XRD) methods. It crystallizes with three formula units in space group R3̄ of the trigonal system in a cell of dimensions at T=153 K of a=17.274(2) Å, c=19.384(4) Å, γ=120°. The cluster [Co63-Se)5.183-Te) 2.82(PEt3)6]·DMF consists of an octahedron of Co atoms with all the faces symmetrically capped by μ3-Se or μ3-Te atoms and each Co atom bonded to a PEt3 group to provide a distorted square-pyramidal environment. These μ3-Se and μ3-Te atoms are disordered as are the solvate DMF molecules.

Original languageEnglish (US)
Pages (from-to)123-126
Number of pages4
JournalInorganica Chimica Acta
Issue number1
StatePublished - Apr 17 2002


  • Chalcogens
  • Cobalt cluster
  • Crystal structures

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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