THE SYNTHESIS AND MOLECULAR-STRUCTURE OF (PH3PAU)2FE(CO)3P(OET)3 - A TRIANGULAR AU2FE CLUSTER uri icon

abstract

  • Reaction of salts of HFe(CO)3PR3- (R = OMe, OEt, OPh, Me, Ph) with Ph3PAuCl leads to quantitative partitioning into H2Fe(CO)3PR3 and (Ph3PAu)2 Fe(CO)3PR3. The complex (Ph3PAu)2Fe(CO)3P(OEt)3 Et2O crystallized in the monoclinic space group P21/n, with a 10.385 (3), b 35.452(10), c 13.648(6), V 5024(3) 3, 91.15(3), and Z = 4. The coordination geometry about Fe is that of a distorted Fe(CO)3PR3 tetrahedron bicapped with Ph3PAu moieties; one along a OCFeCO edge and the other in a face at an AuFeAu angle of 69.0(1). The AuAu bond distance of 2.872(2) is the smallest observed for analogous group 8 (R3PAu)2M(CO)4 complexes and is less than the AuAu distance of metallic gold. Acute FeAuAu angles in the Au2Fe triangle of 54.7(1), and 56.3(1) further suggest a cluster formulation for the trimetallic. 1990.

published proceedings

  • JOURNAL OF ORGANOMETALLIC CHEMISTRY

author list (cited authors)

  • ARNDT, L. W., ASH, C. E., DARENSBOURG, M. Y., HSIAO, Y. M., KIM, C. M., REIBENSPIES, J., & YOUNGDAHL, K. A.

citation count

  • 12

complete list of authors

  • ARNDT, LW||ASH, CE||DARENSBOURG, MY||HSIAO, YM||KIM, CM||REIBENSPIES, J||YOUNGDAHL, KA

publication date

  • August 1990