Crystal and molecular structure of a dinuclear ortho-metalated platinum ylid complex, [Pt(u-Cl)CH3COCHP(C6H4)(C6H5)2]2*2CDCl3

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dc.contributor.author Illingsworth, Marvin en_US
dc.contributor.author Teagle, John en_US
dc.contributor.author Burmeister, John en_US
dc.contributor.author Fultz, William en_US
dc.contributor.author Rheingold, Arnold en_US
dc.date.accessioned 2006-07-19T19:38:43Z en_US
dc.date.available 2006-07-19T19:38:43Z en_US
dc.date.issued 1983-10 en_US
dc.identifier.citation Organometallics 2N10 (1983) 1364-1369 en_US
dc.identifier.issn 1520-6041 en_US
dc.identifier.uri http://hdl.handle.net/1850/2165 en_US
dc.description.abstract The product of the reaction between PtCl2 and APPY (APPY = acetylmethylenetriphenylphosphorane, (C6H5)3PCHC(O)CH3), upon heating a 1:2 mole ratio at reflux in acetonitrile for 44 h, was originally formulated as Pt(APPY)2C12 (1) on the basis of elemental analysis and infrared and proton NMR spectral data. However, this product has now been shown by X-ray crystallography to have undergone orthometalation of an APPY ligand and dimerization to form [Pt(u-Cl)CH3COCHP(C6H4)(C6H6)2]2 (2). The APPYH+Cl- formed in the process was identified by its IR, lH, 13C, and 31P NMR spectra and removed by washing the original sample with water. Yellow monoclinic crystals of compound 2 and two molecules of deuteriochloroform, space group C62H-C2/c were obtained by slow evaporation of a deuteriochloroform solution of the original reaction product. The unit-cell parameters at 26 degrees C are a = 21.33 (1) A, b = 18.453 (3) A, c = 14.337 (6) A, beta = 122.93 (2)O, and Z = 4. The structure has been refined to an R index on F of 0.070 for 3214 observations and 263 parameters. The two platinum atoms and the two chlorine atoms of compound 2 are planar, due to a crystallographically imposed inversion center (i) located between the two platinum atoms and the two bridging chlorine atoms. The coordination about each of the platinum atoms is square planar with a platinum-to-platinum nonbonding distance of 3.599 A. The two deuteriochloroform molecules are weakly interacting with the carbonyl oxygen of the ortho-metalated APPY ligand, 0.-D = 2.339 A. The ortho-metalating APPY ligand is puckered, as would be expected for a five-membered chelate containing only single bonds. The significant 'H, I3C, and 31P NMR and IR spectral data for this compound are also discussed. en_US
dc.format.extent 31371 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.publisher The American Chemical Society: Organometallics en_US
dc.subject Crystal structure en_US
dc.subject Magnetic resonance spectroscopy en_US
dc.subject Platinum complexes en_US
dc.title Crystal and molecular structure of a dinuclear ortho-metalated platinum ylid complex, [Pt(u-Cl)CH3COCHP(C6H4)(C6H5)2]2*2CDCl3 en_US
dc.type Abstract en_US
dc.identifier.url http://dx.doi.org/10.1021/om50004a019

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