| Abstract
| - Treatment of Os(Bcat)Cl(CO)(PPh3)2 (1; Bcat = B-1,2-O2C6H4) with AgSbF6 in THF removeschloride and gives a cationic boryl complex formulated as [Os(Bcat)(CO)(THF)2(PPh3)2]SbF6.This in turn when treated in situ with NCMe gives [Os(Bcat)(CO)(NCMe)2(PPh3)2]SbF6 (2).Complex 2 reacts with CO or CN-p-tolyl with displacement of the acetonitrile ligand transto boryl to give [Os(Bcat)(CO)(MeCN)L(PPh3)2]SbF6, (L = CO (3), CN-p-tolyl (4)). Complex1 also reacts directly with the anionic ligands formate, nitrite, and diethyldithiocarbamateto give the corresponding neutral 6-coordinate complexes Os(Bcat)(η2-O2CH)(CO)(PPh3)2 (5),Os(Bcat)(η2-O2N)(CO)(PPh3)2 (6), and Os(Bcat)(η2-S2CNEt2)(CO)(PPh3)2 (7). The crystalstructures of 1, 2, 4, and 7 have been determined.
- Structural studies are reported for the five-coordinate boryl complex Os(Bcat)Cl(CO)(PPh3)2 (1), for the two derived cationic six-coordinate complexes [Os(Bcat)(CO)(NCMe)2(PPh3)2]SbF6 (2) and [Os(Bcat)(CO)(MeCN)(CN-p-tolyl)(PPh3)2]SbF6 (4), and for the derived neutral six-coordinate complex Os(Bcat)(η2-S2CNEt2)(CO)(PPh3)2 (7).
|
