THIOLATE COMPLEXES OF OSMIUM(IV) - PREPARATION OF [OS(SR)4(PR'3)] (R = C6F5, C6F4H-4, C6H4F-4 OR PH, R' = PH R = C6F5 OR C6F4H-4, R'3 = ME2PH) AND [OSCL(SC6F5)2(SC6H4X-3)(PME2PH)] (X=F OR CF3) - CRYSTAL-STRUCTURES OF [OS(SC6F4H-4)4(PPH3)] AND [OSCL(SC6F5)2(SC6H4CF3-3)(PME2PH)]
M. Arroyo et al., THIOLATE COMPLEXES OF OSMIUM(IV) - PREPARATION OF [OS(SR)4(PR'3)] (R = C6F5, C6F4H-4, C6H4F-4 OR PH, R' = PH R = C6F5 OR C6F4H-4, R'3 = ME2PH) AND [OSCL(SC6F5)2(SC6H4X-3)(PME2PH)] (X=F OR CF3) - CRYSTAL-STRUCTURES OF [OS(SC6F4H-4)4(PPH3)] AND [OSCL(SC6F5)2(SC6H4CF3-3)(PME2PH)], Journal of the Chemical Society. Dalton transactions, (13), 1994, pp. 1819-1824
The diamagnetic osmium(IV) complexes [Os(SR)4(PR'3)] (R = C6F5, C6F4H-
4, C6H4F-4, or Ph, R' = Ph; R = C6F5 or C6F4H-4, R'3, = Me2Ph) and [Os
Cl(SC6F5)2(SC6H4X-3)(PMe2Ph)] (X = F or CF3) have been prepared. The c
omplex [Os(SC6F4H-4)4(PPh3)] has an essentially trigonal-bipyramidal s
tructure with an apical PPh3 group [Os-P 2.391 (5), Os-S(ap) 2.414(5),
mean Os-S(eq), 2.207(7) angstrom]. The structure of [OsCl(SC6F5)2(SC6
H4CF3-3)(PMe2Ph)] is a somewhat distorted triagonal bipyramid with api
cal Cl- and PMe2Ph groups [Os-Cl 2.420(2), Os-P 2.340(2), mean Os-SC6F
5 2.206(2), Os-SC6H4CF3 2.187(2) angstrom]. The spectroscopic properti
es of these compounds are reported and the possibility of isomerism in
solution is discussed.