一些单立方烷化合物MFe3S4（S2CNR2）5（M=Mo,W）的^1H NMR研究  

~1H NMR Studies on Some Single Cubane-Iike Cluster Compounds MFe_3S_4(S_2CNR_2)_5(M = Mo,W; R_2 = Me_2,Et_2,C_4H_8,OC_4H_8, C_5H_(10))

作　　者：吴达旭[1] 雷新建 刘秋田[1] 刘汉钦[1] 

机构地区：[1]中国科学院福建物质结构研究所

出　　处：《Chinese Journal of Structural Chemistry》1993年第3期163-167,共5页结构化学（英文）

摘　　要：本文报道了一些单立方烷化合物MFe_3S_4(S_2CNR_2)_5(M=Mo,W;R_2=Me_2,Et_2,C_4H_8,OC_4H_8,C_5H_(10))的~1H NMR谱研究,结果表明与铁原子相连的配体的α-H产生了相当大的各向同性位移,它随温度升高而减少,基本上服从居里定律。本文还讨论了化合物中的配体间交换反应以及簇骼中金属原子间耦合作用对配体的NMR的影响。The 1H NMR spectra have been determined for several single cubane-like cluster compounds MFe3S4(S2CNR2)5(M=Mo,W; R2=Me2,Et2,C4H8,OC4H8, C5H10). The isotropic shifts were observed at the α-H atoms of the ligands attaching iron atoms in the cluster compounds, and their temperature dependencies obey essentially Curie Law. The ligand exchange reaction in the compounds is also described briefly. In addition, the influence of the antiferromagnetic coupling a-mong the metals of MFe3S4 cores on the NMR spectra of the ligands is discussed.

关 键 词：金属配合物 NMR 

分 类 号：O641.4[理学—物理化学]