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| Synthesis and Crystal Structure of Bis(N,N''''- cyclohexyl-N''''''''-bis(trimethylsilyl)samarium Chloride | |
| 引用本文： | 姚英明,罗云杰,沈琪,郁开北. Synthesis and Crystal Structure of Bis(N,N''''- cyclohexyl-N''''''''-bis(trimethylsilyl)samarium Chloride[J]. 结构化学, 2004, 23(4) |
| 作者姓名： | 姚英明 罗云杰 沈琪 郁开北 |
| 作者单位： | YAO Ying-Minga LUO Yun-Jiea，b SHEN Qia② YU Kai-Beic a (Department of Chemistry and Chemical Engineering，Suzhou University，Suzhou 215006，China) b (Department of Biological and Pharmaceutical Engineering，Ningbo Institute of Technology，Zhejiang University，Ningbo 315104，China) c (Chengdu Institute of Organic Chemistry，The Chinese Academy of Sciences，Chengdu 610041，China) |
| 基金项目： | thegrantsfromtheNationalNaturalScienceFoundationofChina(20272040) |
| 摘 要： | 1INTRODUCTIONTheguanidinateanions,[(RN)2C(NR2?]-,canbeeasilymodifiedinbothelectronicdensityandstericbulkinessbyadjustingthesubstituents(RorR?onnitrogenatoms.Inthiscase,theyhavealrea-dybeenattractedmuchattentioninthecoordinationandorganometallicchemistry… |
Synthesis and Crystal Structure of Bis(N,N''''-cyclohexyl-N"-bis(trimethylsilyl)samarium Chloride |
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| Abstract: | The reaction of [(SiMe3)2NC(NC6H11)2]Li with SmCl3 in 2:1molar ratio in THF gave bis(N,N'-cyclohexyl-N'-bis(trimethylsilyl)samarium chloride,[(SiMe3)2NC(NC6H11)2]Sm(μ-Cl)2Li(THF)2 1 in 85% isolated yield as pale-yellow crystals.Complex 1 was structurally characte- rized by single-crystal X-ray diffraction analysis at 289(2) K.It crystallizes in monoclinic,space group C2/c with a=26.886(3),b=13.677(2),c=19.465(3)A,β=120.26(1)°,V=6182(2)A3,Z=4,Mr=1105.84,Dc=1.188g/cm3,F(000)=2340 and μ(MoKα)=1.150 mm-1.The structure was refined to R=0.0378 and wR=0.0885 for 4342 observed reflections with I>2σ(I).The coordination geometry of samarium ion can be best described as a distorted pseudooctahedron. |
| Keywords: | guanidinate organolanthanides synthesis crystal structure |
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