Syntheses, reactions, and structures of osmium(II) stannyl complexes with the simple stannyl ligands SnH3, SnH2Me, and SnHMe2 |
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| Authors: | Michael M. Mö hlen,George R. Whittell |
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| Affiliation: | Department of Chemistry, The University of Auckland, Private Bag 92019, Auckland, New Zealand |
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| Abstract: | Reaction between Os(SnI3)(κ2-S2CNMe2)(CO)(PPh3)2 and NaBH4 produces the unusual, air-stable, trihydridostannyl complex, Os(SnH3)(κ2-S2CNMe2)(CO)(PPh3)2 (1), which has been fully characterised including by X-ray crystal structure determination.Similarly, reaction between Os(SnI2Me)(κ2-S2CNMe2)(CO)(PPh3)2 or Os(SnClMe2)(κ2-S2CNMe2)(CO)(PPh3)2 and NaBH4 produces the dihydridostannyl complex, Os(SnH2Me)(κ2-S2CNMe2)(CO)(PPh3)2 (4) or the monohydridostannyl complex, Os(SnHMe2)(κ2-S2CNMe2)(CO)(PPh3)2 (6), respectively.The Sn H bonds in these complexes are reactive towards acids and in selected reactions complexes 1 and 4 with aqueous HF give Os(SnF3)(κ2-S2CNMe2)(CO)(PPh3)2 (3) and Os(SnF2Me)(κ2-S2CNMe2)(CO)(PPh3)2 (5), respectively, and complex 6 with aqueous HCl gives Os(SnClMe2)(κ2-S2CNMe2)(CO)(PPh3)2.The trihydridostannyl complex 1 reacts with chloroform to form the trichlorostannyl complex, Os(SnCl3)(κ2- S2CNMe2)(CO)(PPh3)2 (2). The crystal structures of 1-3, 5, and 6 have been determined. |
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| Keywords: | Trihydridostannyl complex Tin Osmium X-ray crystal structure |
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