摘要
Oxidative addition of diphenyl ditellurides to organometallic fragment [Mn(CO) 5 ] − produced cis-[Mn(CO) 4− (TePh) 2 ] − . This complex crystallized in monoclinic space group P2 1 /n with a = 12.876(6) Å, b = 18.001(7) Å, c = 18.670(7) Å,β = 93.77(3)°, V= 4318(3) Å 3 , Z = 4, final R = 0.035, and R w = 0.034. Thermolytic conversion of cis-[Mn(CO) 4 (TePh) 2− to [(CO) 3 Mn(μ-TePh) 3 Mn(CO) 3 ] − was accomplished in high yield by refluxing [Mn(CO) 4 (TePh) 2− in THF solution. Crystal data: triclinic space group P1, a = 10.820(2) Å, b = 15.038(4) Å, c = 19.697(7) Å, a = 107.67(3)°, β = 96.23(3)°, γ = 107.63(2)°, V = 2838(1) Å 3 , Z = 2, R = 0.025, and R w = 0.026. Oxidation of Co 2+ by diphenyl ditelluride in the presence of “chelating metalloligand” cis-[Mn(CO) 4 -(TePh) 2 ] − , followed by carbonyl shift from Mn to Co and a benzenetellurolate group rearranging to bridge two metals, led directly to (CO) 3 Mn(μ-TePh) 3 Co(CO)(μ-TePh) 2 Mn(CO) 4 . Crystal data: triclinic space group P1, a = 11.689(4) Å,b= 12.509(5) Å, c = 15.930(9) Å, α = 82.85(5)°, β = 74.87(5)°, γ = 70.56(4)°, V= 2119(2) Å 3 , Z = 2, R = 0.074, and R w = 0.091. Addition of [Ph 3 C][BF 4 ] to [(CO) 3 Mn(μ-TePh) 3 Mn(CO) 3− resulted in formation of the well-known (CO) 4 Mn(μ-TePh) 2 Mn(CO) 4 dimer. This complex crystallized in the monoclinic space group P2 1 /n with a = 18.852(4) Å,b = 7.094(4) Å, c = 18.604(6) Å, β = 106.29(2)°, V = 2388(2) Å 3 , Z = 4, final R = 0.048, and R w = 0.047. © 1995, American Chemical Society. All rights reserved.