Synthesis and structure of tetraethylammonium (Dithiocarbonato-S,S')-bis(ethylxanthato)colbaltate(III)
CL Raston, AH White and G Winter
Australian Journal of Chemistry
31(2) 291 - 296
The title compound, (Et4N) [Co(S2CO)(S2COEt)2], and its chromium analogue have been prepared by nucleophilic attack of (Et4N)(S2COEt) on the parent tris(ethylxanthato)metal(III) complex in acetone solution, the structure of the cobalt derivative being confirmed by single-crystal X- ray structure determination; the structure was refined by least squares to a residual of 0.045 for 2306 'observed' reflections. Crystals are orthorhombic, P bca, a 17.303(8), b 16.970(6), c 16.052(6) Ǻ, Z 8. <Co- S> for the ethylxanthate ligands is 2.286 Ǻ, longer than in the parent tris(ethylxanthato)-cobalt(III) complex, while <Co-S> for the dithiocarbonate, chelated through the two sulphurs, is 2.251 Ǻ.
Full text doi:10.1071/CH9780291
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