Oxidative Addition of Diorganyl Ditellurides to [Mn(CO) 5 ] : Crystal Structures of cis-[Na-18-crown-6-ether·2THF][Mn(CO) 4 (TePh) 2 ], [PPN][(CO) 3 Mn(μ-TePh) 3 Mn(CO) 3 ], (CO) 3 Mnμ-TePh) 3 Co(CO)(μ-TePh) 2 Mn(CO) 4 , and (CO) 4 Mn(μ-TePh) 2 Mn(CO) 4

Wen Feng Liaw, Der Shiaw Ou, Yu Shiou Li, Way-Zen Lee, Chih Yuan Chuang, Yi Pei Lee, Gene Hsiang Lee, Shie Ming Peng

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Abstract

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.

Original languageEnglish
Pages (from-to)3747-3754
Number of pages8
JournalInorganic Chemistry
Volume34
Issue number14
DOIs
Publication statusPublished - 1995 Jul 1

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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