- 作者: 洪豐裕 ; 洪長谷 ; 林助傑
- 作者服務機構: 中興大學化學系
- 中文摘要: Reaction of MoCo(CO)/sub 5/(PPh/sub 3/)/sub 2/(.eta./sup 5/-C/sub 5/H/sub 5/) (1a) with trimethylsilylacetylene in tetrahydrofuran at 58.degree.C yielded two acetylene bridged heterobimetallic compounds, MoCo(CO)/sub 4/(PPh/sub 3/).lbrace..mu.- HC. ident.CSiMe/sub 3/.rbrace.(.eta./sup 5/-C/sub 5/H/sub 5/)(4) and MoCo(CO)/sub 5/.lbrace..mu.-HC.ident.CSiMe/sub 3/.rbrace.(.eta./sup 5/-C/sub 5/H/sub 5/) (5). (4) was characterized by mass, infrared, /sup 1/H, /sup 13/C and/sup 31/P NMR spectra. The X-ray crystal structure of (4) was determined: triclinic, P-1, a=8.821(1).ANG., b=11.315(3).ANG., c=17.029(2).ANG., .alpha.=70.73(1).degree.,.beta.=78.72(1).degree., .gamma.=86.10(2).degree., V=1573.4(6).ANG./sup 3/, Z=2, R=3.92%, R/sub w/=6.06% for 4285 (F>4.sigma.(F)) observed reflections. The core of this molecule is a quasi-tetrahedron containing Mo, Co and two carbons of acetylene. The triphenylphosphine ligand is attached to cobalt rather than molybdenum center.
- 英文摘要: --
- 中文關鍵字: Molybdenum; Cobalt; Acetylene; Heterobimetallic Compound; Metallatetrahedrane
- 英文關鍵字: 鉬;鈷;乙炔;異核雙金屬化合物;金屬四面體