Abstract
Treatment of the coordinatively unsaturated osmium complex Os(SnMe3)Cl(CO)(PPh3)2 with sodium dimethyldithiocarbamate gives the coordinatively saturated complex Os(SnMe3)(η2-S2CNMe2)(CO)(PPh3)2 (1). Complex 1 reacts with excess SnI4 to give Os(SnMeI2)(η2-S2CNMe2)(CO)(PPh3)2 (3) in high yield. A redistribution reaction of 3 with an equimolar amount of 1 provides Os(SnMe2I)(η2-S2CNMe2)(CO)(PPh3)2 (2). The last remaining methyl group bonded to tin in 3 is removed by treatment with a slight excess of I2, giving the triiodostannyl complex Os(SnI3)(η2-S2CNMe2)(CO)(PPh3)2 (4). Both 3 and 4 have been further derivatized by replacement of the halide groups on tin. Treatment of 3 with pyridinium tribromide gives Os(SnMeBr2)(η2-S2CNMe2)(CO)(PPh3)2 (5). Treatment of 3 with catechol provides Os(SnMe[1,2-O2C6H4]) (η2-S2CNMe2)(CO)(PPh3)2 (6), while the similar reaction with 1,2-ethanedithiol gives Os(SnMe[1,2-S2C2H4]) (η2-S2CNMe2)(CO)(PPh3)2 (7). Complex 4 undergoes reaction with an excess of KOH to give the trihydroxystannyl complex Os(Sn[OH]3)(η2-S2CNMe2)(CO)(PPh3)2 (8). Treatment of 4 with triethanolamine gives Os(Sn[OCH2CH2]3N) (η2-S2CNMe2)(CO)(PPh3)2 (9), while reaction with nitrilotriacetic acid gives the metal-substituted stannatranone Os(Sn[OC(O)CH2]3N)(η2-S2CNMe2)(CO) (PPh3)2 (10). The crystal structures of 1, 4, 5, 7, and 10 have been determined.
Original language | English |
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Pages (from-to) | 1766-1774 |
Number of pages | 9 |
Journal | Organometallics |
Volume | 19 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1 May 2000 |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry