摘要:
The syntheses of cpRuCl(eta1-MeN(PF2)2)2 (1) and fac-ReBr(CO)3(eta1-MeN(PF2)2)2 (3) are described together with their use in the directed synthesis of heterobimetallic complexes. The monodentate MeN(PF2)2 ligands in 1 are cleaved on exposure to moisture or on chromatography on Florisil to give cpRu(P(O)F2)(PF2NHMe)2 (2). With CO2(CO)8 1 and 3 respectively yield cpRu(mu-MeN(PF2)2)2Co(CO)2 (4) and fac-Re(CO)3(mu-MeN(PF2)2)2Co(CO)2 (5), while with IrCl(CO)(PPh3)2, cpRu(mu-MeN(PF2)2)2IrCl2(PPh3) (6) and fac-Re(CO)3(mu-MeN-(PF2)2)2IrClBr(PPh3) (7) are obtained. Complex 1 and [RhCl(CO)2]2 yield cpRu(mu-MeN(PF2)2)2RhCl2 (8) which adds dimethylphenylphosphine to give cpRu(mu-MeN(PF2)2)2RhCl2(PMe2Ph) (9) while with 3 the product is fac-Re(CO)3(mu-MeN(PF2)2)2RhClBr (10). A complex mixture of products is formed from 1 and Pt(L)(PPh3)2 (L = C2H4, C2Ph2) which has not been completely characterized, but fac-Re(CO)3(mu-MeN(PF2)2)2PtBr(PPh3) (11), in which the platinum adopts a distorted square pyramidal coordination with a very long apical Pt-Br bond, is obtained from 3 and Pt(C2Ph2)(PPh3)2. The structures of 2, 5, 9, and 11 have been determined by X-ray crystallography. 2: monoclinic; P2(1)/n; a = 10.487(2), b = 11.832(2), c = 11.910(2) angstrom; beta = 90.50(1)-degrees; Z = 4. 5: triclinic; P1BAR; a = 9.794(l), b = 10.563(l), c = 9.624(2) angstrom; alpha = 98.06(l), beta = 101.29(l), gamma = 81.796(9)-degrees; Z = 2. 9: monoclinic; P2(1)/c; a = 18.239(3), b = 8.195(2), c = 18.078(2) angstrom, beta = 102.36(l)-degrees; Z = 4. 11: monoclinic; C2/m; a = 12.649(2), b = 14.908(l), c = 19.798(2) angstrom; beta = 96.600(9)-degrees; Z = 4.