THE CRYSTAL AND MOLECULAR-STRUCTURE OF [CO(TMEN)(3)](C7H7SO3)(3)CENTER-DOT-2H2O AND O(TMEN)(3)](CH3SO3)(2)CENTER-DOT-ETOH-CENTER-DOT-1 2H2O(TMEN=2,3-DIMETHYLBUTANE-2,3-DIAMINE)/
H. Brunner et al., THE CRYSTAL AND MOLECULAR-STRUCTURE OF [CO(TMEN)(3)](C7H7SO3)(3)CENTER-DOT-2H2O AND O(TMEN)(3)](CH3SO3)(2)CENTER-DOT-ETOH-CENTER-DOT-1 2H2O(TMEN=2,3-DIMETHYLBUTANE-2,3-DIAMINE)/, Helvetica Chimica Acta, 79(6), 1996, pp. 1607-1610
The molecular structure of the two complex ions [Co(tmen)(3)](3+) and
[Co(tmen)(3)](2+) (tmen=2,3-dimethylbutane-2,3-diamine) have been dete
rmined at 100 K. They show a strong trigonal distortion of the octahed
ral CoN6 core. The twist angle is 26.2(2.8)degrees for Co-II and 43.9(
9)degrees for Co-III. Average Co-N distances are 2.193(13) Angstrom (C
o-II) and 1.997(2) Angstrom (Co-III), 0.02 Angstrom longer than for th
e main body of Co-III amines.