
%0 Journal Article
%A Brookes, RW 
%A Martin, RL 
%T A tetrameric cobalt(II) cluster of 7-azaindole
%J Australian Journal of Chemistry
%D 1975/06/01
%V 28
%N 6
%P 1363-1366
%K 
%R https://doi.org/10.1071/CH9751363
%U https://www.publish.csiro.au/paper/CH9751363 
%X The synthesis and properties of the tetrameric cobalt(II) complex [Co4O(C7H5N2)6], where C7H5N2-is the anion of 7-azaindole (1H-pyrrolo[2,3- b]pyridine), are reported. A tetrameric molecular structure is indicated by the mass spectrum. The electronic spectrum is consistent with a tetrahedral environment about each cobalt atom. The compound displays antiferromagnetic behaviour which conforms to simple Heisenberg theory over the liquid nitrogen temperature range. The fitted exchange constant J is c. -16 cm-1. 
