R. Cini et al., Synthesis and X-ray crystal structure of trans-dichloro( 1-cyano-2,2-dimethylpropane)(1-imino-1-hydroxy-2,2-dimethylpropane)platinum(II), POLYHEDRON, 18(13), 1999, pp. 1863-1868
Nitrile complexes of platinum easily hydrolyze to amidate, amide, and mixed
amide-nitrile complexes. The amide ligands generally adopt the enol tautom
eric form and coordinate to platinum through nitrogen. A mixed amide-nitril
e complex, trans-[PtCl2{HN=C(OH)C(CH3)(3)}{N=CC(CH3)(3)}] (trans-3), has sh
own to be the complex previously formulated as a platinum(IV) dichlorobisam
idate derivative having the two amidate ligands in different tautomeric for
ms. The structure of trans-3 has been solved by single-crystal diffraction.
The complex crystallizes in the Pbcn space group. The crystal structure ha
s strong similarities with that previously reported by some of us for trans
-[PtCl2{HN=C(OH)C(CH3)(3)}(2)] [R. Cini, F.P. Fanizzi, F.P. Intini, C, Paci
fico, G, Natile, Inorg. Chim. Acta 264 (1997) 279]. Triplets of complex mol
ecules are stabilized by intra-molecular hydrogen bonds involving N, Cl and
O atoms. (C) 1999 Elsevier Science Ltd. All rights reserved.