Transition metal substituted gallanes: Synthesis and x-ray structures of [(CO)(4)CoGaEt2(NC7H13)], [(PMe3)(CO)(3)CoGaCl2(NMe3)], [(CO)(4)CoGaCl3]K, and [(CO)(5)MnGaEt2(NC7H13)

The transition metal substituted gallanes [(CO)(5)MnGaEt2(NC7H13)] (1), [(P Me3)(CO)(3)CoGaCl2 . (NMe3)] (2), [(CO)(4)CoGaEt2(NC7H13)] (3), and [(CO)(4 )CoGaCl3]K (4) were obtained by the reaction of the potassium/sodium salts of the manganese- and cobalt-carbonylmetallates with the chlorogallium spec ies ClGaEt2(NC7H13), Cl3Ga(NMe3); and GaCl3. The structures were establishe d by single crystal X-ray analysis 1: space group P2(1)/c (I.T.-No.: 14); Z = 4; a = 1425.4(2) pm, b = 1007.4(1) pm, c = 1429.9(3) pm; beta = 113.92(1 )degrees; 2: space group P2(1)/m (I.T.-No.: 11); Z = 2; a = 746.1(1) pm, b = 1131.2(1) pm, c = 1061.5(1) pm; beta = 101.87(1)degrees; 3: space group P 2(1)/c (I.T.-No.: 14); Z = 8; a = 1405.9(2) pm, b = 1786.2(2) pm, c = 1430. 9(2) pm; beta = 91.47(1)degrees; 4: space group P2(1)/c; Z = 4; a = 1185.7( 1) pm, b = 895.4(1) pm, c = 1144.7(3) pm; beta = 106.47(2)degrees. The mode l compounds [{L'(CO)(3)Co}GaX2L] (L' = CO, PH3; L = NH3, X = H, Cl) with po lar sigma(Co-Ga) bonds and the effect of the substituent on the bond length are characterized with DFT-calculations.