Web Release Date: February 8,
Hydrothermal Synthesis and Structure of a Three-Dimensional Cobalt(II) Triazolate Magnet
and
Department of Chemistry, Syracuse University, Syracuse, New York 13244, and Department of Chemistry, Texas A&M University, College Station, Texas 77843
Received November 17, 2005
Abstract:
The reaction of CoCl2·6H2O, 1,2,4-triazole, and H2O at 200 
C
for 96 h yields purple rods of [Co2(trz)3Cl] (1; trz = 1,2,4-triazolate)
in 90% yield. The structure of 1 consists of {Co(trz)3}nn- chains
of CoII sites linked through tetrahedral sites of {CoN3Cl} geometry
into a three-dimensional framework. The competing antiferromagnetic interactions of the octahedral and tetrahedral CoII centers
result in weak ferromagnetic behavior below Tc = 9 K.
Download the full text: PDF | HTML
