Iminic N-Bound Iminophosphorano versus Nitrilic N-Bound Iminophosphorano Os(IV) Complexes: A New Double Derivatization of the Nitrido Ligand
- 22 April 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 44 (10) , 3657-3663
Abstract
The reactions between trans-[OsIV(tpy)(Cl)2(NCN)] (1) and PPh3 and between trans-[OsIV(tpy)(Cl)2(NPPh3)]+ (2) and CN- provide new examples of double derivatization of the nitrido ligand in an Os(VI)−nitrido complex (OsVI⋮N). The nitrilic N-bound product from the first reaction, trans-[OsII(tpy)(Cl)2(NCNPPh3)] (3), is the coordination isomer of the first iminic N-bound product from the second reaction, trans-[OsII(tpy)(Cl)2(N(CN)(PPh3))] (4). In CH3CN at 45 °C, 4 undergoes isomerrization to 3 followed by solvolysis and release of (N-cyano)iminophosphorane, NCNPPh3. These reactions demonstrate new double derivatization reactions of the nitrido ligand in OsVI⋮N with its implied synthetic utility.Keywords
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