SYNTHESES AND CRYSTAL-STRUCTURES OF 2 THIOLATO-ORGANOPHOSPHINO COBALT(II) COMPLEXES, (ET4N)[CO(SC6H5)3(PPH3)] AND [CO(S-META-C6H4CH3)2(PH2PCH2CH2P(PH)CH2CH2PPH2)]

(Et4N)[Co(SC6H3)3(PPh3)] (1) and the neutral complex [Co(S-m-C6H4CH3)2(Ph2PCH2CH2P(Ph)-CH2CH2PPh2)] (2) have been prepared by reaction of CoCl2, NaSR (R = C6H5, m-C6H4CH3) and an organophosphine PPh3, dppep) in methanol. Red crystals of compound 1 are triclinic, space group [Formula Omitted] with cell dimensions a = 11.284(5), b= 11.987(5), c = 15.929(5)Å, α = 91.33(3), β = 96.51(2), ϒ = 105.42(4)°, Z = 2, Dc = 1.255 g cm-3, R = 0.063 for 1905 observed reflections. The CoPS3core possesses a distorted trigonal pyramidal geometry. Average distances (Co-S) are 2.262Å and (Co-P) 2.366(2)Å. Black crystals of compound 2 are monoclinic, space group P21/c with cell dimensions a = 11.024(3), b = 28.061(2), c = 14.895(2)Å, β = 104.59(1)°, Z = 4, Dc = 1.263 g cm-3, R = 0.071 for 2021 reflections. The CoP3S2 core of 2 forms a trigonal bipyramid with average (Co-S) distances of 2.247Ånd (Co-P) of 2.241 Å. © 1992, Taylor & Francis Group, LLC. All rights reserved.