1,1'-Bis(diphenylphosphino)ferrocene complexes of platinum(II) and platinum(I). Crystal and molecular structure of [(L-L)Pt(.mu.-H)(.mu.-CO)Pt(L-L)][BF4].0.5H2O, where L-L = Fe(.eta.5-C5H4PPh2)2

摘要: A series of platinum(II) derivatives with 1,1'-bis(dipheny1phosphino)ferrocene (L-L) were synthesized and characterized in solution mainly by 1 H 31 P( {H} NMR spectroscopy. The includes, besides the known Pt(L-L)CI 2 ( ), mononuclear species Pt(L-L)(pz) , pzH = pyrazole), Pt(L-L)(3,5-Me pz) 3 3,5-Me 3,5-dimethylpyrazole), [Pt(L-L)(3,5-Me pzH) [BF 4 ] ( [Pt(L-L)(H O) ][BF •χH O 5 ) as well dinuclear species [(L-L)Pt(µ-OH) Pt(L-L)][BF 6 [Pt 7 ). Reaction hydrido complex CO (room temperature, atm) gave [(L-L)Pt(µ-H)(µ-CO)Pt(L-L)][BF 8 formally a platinum(I) derivative. molecular structure [(L-L)Pt(µ-H)(µ-CO)Pt(L-L)] ]•0.5H 8a was determined X-ray analysis: crystallizes triclinic space group P Ī 12.411 (4) A, b 15.930 (5) c 16.922 (7) α 100.64 (3)°, β 98.74 γ 104.34 Z 2, V 3166 . was refined to conventional R factor 0.025. In cation, platinum atoms have cis-square-planar coordination, which shows significant distortion toward tetrahedral geometry P–Pt–P angles 103.68 (6) 103.64 (6)°. Pt–Pt distance is 2.790 A.