
%0 Journal Article
%A Onggo, D 
%A Craig, DC 
%A Rae, AD 
%A Goodwin, HA 
%T Coordination of 6-Methyl-2,2'-bipyridine. Structure of Bivalent Copper and Palladium Complexes
%J Australian Journal of Chemistry
%D 1991/02/01
%V 44
%N 2
%P 219-231
%K 
%R https://doi.org/10.1071/CH9910219
%U https://www.publish.csiro.au/paper/CH9910219 
%X Bis ( ligand ) complexes of 6-methyl-2,2&#8242;-bipyridine (L) with copper(II) and palladium(II) have been prepared, and their structures have been determined by single-crystal X-ray diffractometry . In the formation of the complex fromcopper(II) tetrafluoroborate and L, partial hydrolysis of a coordinated fluoroborate ion to the hydroxytrifluoroborate ion occurs. The stereochemistry about copper in [CuL2OHBF3][BF4] is essentially trigonal  bipyramidal with an axial compression. The nitrogens of the methyl-substituted pyridine rings coordinate in the axial sites. In [PdL2Cl][BF4] the coordination environment about palladium is square planar and one of the 6-methylbipyridine molecules functions as a unidentate group, the nitrogen of the methyl-substituted pyridine ring being uncoordinated. The average metal-nitrogen distance is 2.032 &#506; in the copper complex and 2.042 &#506; in the palladium complex. [CuL2OHBF3][BF4] is monoclinic, space group P21/c, Z = 4, a 9.005(2), b 17.868(2), c 15.298(3) &#506;, &#946; 104.13(1)&#176;. [PdL2Cl][BF4] is monoclinic, space group P21/c, Z = 4, a 9.606(5), b 14.748(2), c 16.311(8)&#506;, &#946; 96.13(2)&#176;. 
