
TY  - JOUR
A1  - Goodwin, HA 
A1  - Onggo, D 
A1  - Skelton, BW 
A1  - White, AH 
T1  - Coordination of 3,3'-Bipyridazine With Bivalent Copper, Palladium and Platinum
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1990
VL  - 43
IS  - 11
SP  - 1919
EP  - 1928
KW  - 
UR  - https://doi.org/10.1071/CH9901919 
N2  - Bis ( ligand ) complexes of the diimine 3,3&#8242;-bipyridazine (L) with bivalent copper, palladium and platinum are described. Green and violet forms of [CuL2] [BF4]2 were obtained, and the electronic and vibrational spectra suggest coordinated fluoroborate groups in the violet species. In the green complex a tetragonal structure is indicated. Coordination of perchlorate in [PdL2] [ClO4]2 is also indicated but not in [PtL2] [ClO4]2. Structure determination of the latter complex reveals a strictly planar PtN4 moiety, and in fact the whole complex cation is approximately planar. Reduced interligand repulsions, compared to those operative in bis ( ligand ) complexes of 2,2?-bipyridine, are believed to allow the essentially planar conformation. The structure of [PtL2] [ClO4]2 was determined at 295 K by single-crystal X-ray diffraction methods, and was refined to a residual of 0.033 for 1942 'observed' independent reflections. Crystal data: [PtL2][ClO4]2 monoclinic, space group P21/c (C5/2h, No. 14), a 7.919(2), b 13.086(3), c 10.313(3)&#506;, &#946; 107.16(2)&#176;. 
ER  -

