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经由零价双核钼含SR桥的配合物的氧化反应合成了一系列含各种SR桥的双核钼(Ⅰ)配合物Mo_2-(CO)_(8-n)(μ-SR)_2L_n[R=Bu~t,Ph,Bz(C_6H_5CH_2),CH_2CO_2Et;L=MeCN,PPh_3;n=0,2]。并应用红外光谱、元素分析等进行表征,讨论了新的合成途径。[含MeCN配位体配位到Mo(Ⅰ)上的配合物,Mo_2(CO)_6(SPh)_2(MeCN)_2经X射线结构测定,系属单斜晶系,空间群P2_1/c,a=9.241(2),b=9.330(3),c=15.458(4)A:β=105.77(2)°;V=1283(1)A~3;Z=2;R=0.033。Mo—Mo距离为2.978A,表明其Mo-Mo键的形成,Mo-S键长为2.469A。比较同系物Mo_2(CO)_8(μ-SCH_2CO_2-Et)_2,Mo_2(CO)_6(μ-SCH_2CO_2Et)_2(MeCN)_2和Mo_2(CO)_8(μ-SBu~t)_2的结构,并讨论其结构与化学。
A series of Mo2- (CO) _ (8-n) (μ-SR) _2L_n [R] complexes with various SR bridges have been synthesized via the oxidation of complexes of zero-valent binuclear molybdenum- = Bu ~ t, Ph, Bz (C_6H_5CH_2), CH_2CO_2Et; L = MeCN, PPh_3; n = 0,2]. And the application of IR spectroscopy, elemental analysis and other characterization, discussed the new synthesis route. The structure of Mo_2 (CO) _6 (SPh) _2 (MeCN) _2 which is coordinated to Mo (Ⅰ) by the coordination of MeCN is monoclinic and the space group P2_1 / c is determined by X - a = 9.241 (2), b = 9.330 (3), c = 15.458 (4) A: β = 105.77 (2) °; V = 1283 (1) A -3; Z = 2; R = 0.033. Mo-Mo distance of 2.978A, indicating that the Mo-Mo bond formation, Mo-S bond length of 2.469A. The structures of Mo_2 (CO) _8 (μ-SCH_2CO_2-Et) _2, Mo_2 (CO) _6 (μ-SCH_2CO_2Et) _2 (MeCN )_2 and Mo_2 (CO) _8 (μ-SBu ~ Discuss its structure and chemistry.