Syntheses of dinuclear gold(I) ring complexes containing 1,1-dicyanoethene-2,2-dithiolate-S, S and bis(diphosphines) as bridging ligands. X-ray crystal structure of [Au2μ-(i-MNT)μ-(dppee)]
摘要:
The reaction of [Au2mu-bis(diphosphine)Cl2] with potassium 1,1-dicyanoethene-2,2-dithiolate [K2(i-MNT)], yields the heterobridged complexes: [Au2mu-(i-MNT)mu-(dppee)] (1) (dppee=bis(diphenylphosphinoethylene)), [Au2mu-(i-MNT)mu-(dppe)] (2) (dppe=bis(diphenylphosphino)ethane), [Au2mu-(i-MNT)mu-(dppb)] (3) (dppb = bis(diphenylphosphino)butane), [Au2mu-(i-MNT)mu-(dppAs)] (4) (dppAs = (diphenylarsino)(diphenylphosphino)ethane). The molecular structure of 1 is described. Complex 1 crystallized in the triclinic space group P1BAR with a = 10.451(2), b = 11.774(1), c = 13.432(2) angstrom, alpha = 65.40(1), beta = 82.30(1), gamma = 77.75(1)-degrees and V = 1466.6(4) angstrom3. The structure features two linear two-coordinate gold(I) centers bridged by the i-MNT ligand on one side and by a bis(diphosphine) ligand on the other forming a dinuclear complex with an Au ... Au distance of 2.867(1) angstrom in a twisted nine-membered ring structure.
Syntheses of dinuclear gold(I) ring complexes containing 1,1-dicyanoethene-2,2-dithiolate-S, S and bis(diphosphines) as bridging ligands. X-ray crystal structure of [Au2μ-(i-MNT)μ-(dppee)]
作者:Rosa M. Dávila、Anabel Elduque、Richard J. Staples、Michele Harlass、John P. Fackler
DOI:10.1016/0020-1693(93)03741-r
日期:1994.3
The reaction of [Au2mu-bis(diphosphine)Cl2] with potassium 1,1-dicyanoethene-2,2-dithiolate [K2(i-MNT)], yields the heterobridged complexes: [Au2mu-(i-MNT)mu-(dppee)] (1) (dppee=bis(diphenylphosphinoethylene)), [Au2mu-(i-MNT)mu-(dppe)] (2) (dppe=bis(diphenylphosphino)ethane), [Au2mu-(i-MNT)mu-(dppb)] (3) (dppb = bis(diphenylphosphino)butane), [Au2mu-(i-MNT)mu-(dppAs)] (4) (dppAs = (diphenylarsino)(diphenylphosphino)ethane). The molecular structure of 1 is described. Complex 1 crystallized in the triclinic space group P1BAR with a = 10.451(2), b = 11.774(1), c = 13.432(2) angstrom, alpha = 65.40(1), beta = 82.30(1), gamma = 77.75(1)-degrees and V = 1466.6(4) angstrom3. The structure features two linear two-coordinate gold(I) centers bridged by the i-MNT ligand on one side and by a bis(diphosphine) ligand on the other forming a dinuclear complex with an Au ... Au distance of 2.867(1) angstrom in a twisted nine-membered ring structure.
Brown, Scott S. D.; Salter, Ian D.; Dyson, David B., Journal of the Chemical Society, Dalton Transactions, 1988, p. 1795 - 1802
作者:Brown, Scott S. D.、Salter, Ian D.、Dyson, David B.、Parish, R. V. ('Dick')、Bates, Paul A.、Hursthouse, Michael B.