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通过Co_2(CO)_8与二气烧流基酸RSPCI_2[R=-CH_3-C_2H_5,-C(CH_3)_3,-(CH_2)_4H_3]反应,得到4个新簇合物.除用元素分析、IR、~1HNMR和MS表征其结构外,还用X光衍射法测定了侯会物CO_4(CO)_8(μ-CO)_2(μ_4-PSR)_2小的单品结构该簇合物用单斜晶系,P21/C空间群.晶胞参数为α=8.445(3),b=8.562(3),c=17.125(6),β=104.26(3)°;V=1200.1A3;Dc=1.9379cm~3μ=3.058mm~(-1);F(000)=688.结构分析表明,四个Co原子形成平面矩形,两个PSR四重桥基分别在四钻平面上下盖帽构成Co_4P_2类人面体骨架,骨架为D_(2h)点群对称性.PSR配体为4e供体,与四个钴原子成键.
Four novel cluster compounds were obtained by the reaction of Co_2 (CO) _8 with the RSPCI_2 [R = -CH_3-C_2H_5, -C (CH_3) _3, - (CH_2) _4H_3] In addition to elemental analysis, IR, ~ 1HNMR and MS characterization of the structure, but also by X-ray diffraction method for the determination of the HO HO CO_4 (CO) _8 (μ-CO) _2 (μ_4-PSR) _2 small single structure Monoclinic cluster, P21 / C space group. The unit cell parameters are α = 8.445 (3), b = 8.562 (3), c = 17.125 (6), β = 104.26 (3) °, V = 1200.1A3, Dc = 1 .9379cm ~ 3μ = 3.058mm ~ (-1); F (000) = 688. The structural analysis shows that the four Co atoms form a plane rectangle, and the two PSR quaternary bridges respectively form the Co_4P_2-type human body skeleton at the upper and lower four-diamond planes with D_ (2h) point group symmetry. The PSR ligand is a 4e donor that bonds to four cobalt atoms.