Synthesis and Characterization of [(C_5H_4SiMe_2~tBu)_2Ln(μ-S^nBu)]_2 (Ln=Y,Er)  

Synthesis and Characterization of [(C_5H_4SiMe_2~tBu)_2Ln(μ-S^nBu)]_2 (Ln=Y,Er)

在线阅读下载全文

作  者:李艳荣 张正星 陈珍霞 刘瑞婷 周锡庚 

机构地区:[1]Department of Chemistry, Molecular Catalysis and Innovative Material Laboratory, Fudan University

出  处:《Chinese Journal of Structural Chemistry》2008年第5期523-528,共6页结构化学(英文)

基  金:This work was supported by the National Natural Science Foundation of China (No. 20572014)

摘  要:(C5H4SiMe2^tBu)2Ln^nBu reacted with 1 equiv, of elemental sulfur in toluene at ambient temperature to yield the corresponding lanthanocene thiolates [(C5H4SiMe2^tBu)2Ln(μ-S^nBu)]2 (Ln = Y (1), Er (2)). Complexes 1 and 2 have been characterized by elemental analysis, IR, mass spectroscopy and X-ray single-crystal diffraction analysis. Both complexes are of monoclinic with space group P21/c, formula C52H94S2Si4Y2 1 (C52H94S2Si4Er2 2) Mr = 1073.57 (1230.27), a = 8.495(2) (8.41(2)), b = 26.913(8) (26.67(7)), c = 13.756(4) (13.68(4)) A, α = 90(90), β = 101.184(5) (101.57(4)), γ = 90 (90)°, V= 3085.1(15) (3007(14)) A^3, Dc = 1.156 (1.359) g·cm^-3, Z= 2 (2), F(000) = 1144 (1260), μ = 2.046 (2.951) cm^-1, R = 0.0687 (0.0749) and wR = 0.1306 (0.1507) for observed reflections with I 〉 2σ(I). X-ray structures of 1 and 2 definitively prove that only one sulfur atom is inserted into the Ln-C(^nBu) bond, forming a thiolate ligand.(C5H4SiMe2^tBu)2Ln^nBu reacted with 1 equiv, of elemental sulfur in toluene at ambient temperature to yield the corresponding lanthanocene thiolates [(C5H4SiMe2^tBu)2Ln(μ-S^nBu)]2 (Ln = Y (1), Er (2)). Complexes 1 and 2 have been characterized by elemental analysis, IR, mass spectroscopy and X-ray single-crystal diffraction analysis. Both complexes are of monoclinic with space group P21/c, formula C52H94S2Si4Y2 1 (C52H94S2Si4Er2 2) Mr = 1073.57 (1230.27), a = 8.495(2) (8.41(2)), b = 26.913(8) (26.67(7)), c = 13.756(4) (13.68(4)) A, α = 90(90), β = 101.184(5) (101.57(4)), γ = 90 (90)°, V= 3085.1(15) (3007(14)) A^3, Dc = 1.156 (1.359) g·cm^-3, Z= 2 (2), F(000) = 1144 (1260), μ = 2.046 (2.951) cm^-1, R = 0.0687 (0.0749) and wR = 0.1306 (0.1507) for observed reflections with I 〉 2σ(I). X-ray structures of 1 and 2 definitively prove that only one sulfur atom is inserted into the Ln-C(^nBu) bond, forming a thiolate ligand.

关 键 词:organolanthanide crystal structure INSERTION elemental sulfur THIOLATE 

分 类 号:O627[理学—有机化学]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象