Some Useful Derivatives of Dodecacarbonyltriosmium

Induction of apoptosis by hexaosmium carbonyl clusters

“…That 4 showed similar activity to 1a, in contrast to the low activity shown by 3, may be attributed to the difference in their substitutional lability. For example, the conversion of 4 to 5 via trimethylamine N-oxide activated substitution can be carried out at low temperatures [9], while a similar conversion of 3 to 1a required refluxing dichloromethane [10].…”

“…The osmium carbonyl clusters Os 3 (CO) 10 (L) 2 (1, L = NCCH 3 (a) [10], PPh 3 (b) [12], AsPh 3 (c) [13], P(OMe) 3 (f) [14], and t BuNC (g) [15]), Os 3 (CO) 11 L (2, L = PPh 3 (b) [16], AsPh 3 (c) [17], and SbPh 3 (d) [18]) and Os 6 (CO) 16 (L) 2 (L = CO (4) [19], and NCCH 3 (5) [9]) were prepared according to reported procedures. 1d and 1e were prepared from the reaction of SbPh 3 and PCy 3 , respectively, with 1a [10]. Os 3 (CO) 12 , 3, was purchased from Oxkem; all other chemicals were purchased from other commercial sources and used as supplied.…”

The deposition of osmium carbonyl clusters onto inorganic oxide surfaces: A ToF-SIMS and IR spectroscopic study of the surface species

“…[Os 3 (CO) 12 ], 1 was purchased from Oxkem Ltd. All the other cluster compounds were synthesized using the reported procedures [16]. All other reagents were purchased from other commercial sources and used as supplied without further purification.…”

The synthesis of heteronuclear clusters containing cyclopentadienyl- or pentamethylcyclopentadienyliridium and ruthenium or osmium

“…Microanalyses were carried out by the microanalytical laboratory at the National University of Singapore. The precursors Cp*Ir(CO) 2 , 2a [19], CpIr(CO) 2 , 2b [20], Os 3 (l-H) 2 (CO) 10 , 5 [19], and Os 3 (CO) 10 (CH 3 CN) 2 , 7 [21], were prepared according to the literature methods. All other reagents were from commercial sources and used as supplied.…”