| Crystal Structure of （E,E）-1,10-Bis-（4-fluoro-phenyl）-3,8-dimethyl-deca-3,7-diene-1,10-dione |
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| 引用本文： | 刘永军,顾建明,张永敏. Crystal Structure of （E,E）-1,10-Bis-（4-fluoro-phenyl）-3,8-dimethyl-deca-3,7-diene-1,10-dione[J]. 结构化学, 2005, 24(2): 135-138 |
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| 作者姓名： | 刘永军 顾建明 张永敏 |
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| 作者单位： | LIU Yong-Juna GU Jian-Mingb ZHANG Yong-Mina，c② a(Department of Chemistry，Zhejiang University (Campus Xixi)，Hangzhou 310028，China) b(Analysis Center，Zhejiang University (Campus Xixi)，Hangzhou 310028，China) c(State Key Laboratory of Organometallic Chemistry，Shanghai Institute of Organic Chemistry，The Chinese Academy of Sciences，Shanghai 200032，China) |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (No. 20072033)，Specialized Research Fund for the Doctoral Program of Higher Education of China |
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| 摘 要： | 1 INTRODUCTION The direct use of metallic samarium as the re-ducing agent in organic transformations has attractedthe attention of many organic chemists[1]. In our inves-tigations on the applications of metallic samarium inorganic synthesis, we have recently found that me-tallic samarium exhibits some extraordinary capa-bilities when DMF instead of traditional THF wasused as the reaction medium[2]. β,γ-Unsaturated car-bonyl moieties, known to exist in natural products,serve as versati…
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| 关 键 词： | 晶体结构 β,τ不饱和酮 萜类化合物 钐 有机化合物 |
Crystal Structure of (E,E)-1,10-Bis-(4-fluoro-phenyl)-3,8-dimethyl-deca-3,7-diene-1,10-dione |
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| Abstract: | The crystal and molecular structures of (E,E)-l,10-bis-(4-fluorophenyl)-3,8-dimethyl-deca-3,7-diene-1,10-dione have been determined by X-ray diffraction method. The crystal (C24 H24F2O2, Mr = 382.45) is of monoclinic, space group P21/C, a = 11.0392(5), b = 11.3620(4), c =7.9361(3) (A), β = 97.423(2)°, V = 987.06(7) (A)3, Z = 2, Dc = 1.287 g/cm3,t(Mo-Ka) = 0.93 cm-1, λ= 0.7107 (A), F(000) = 404.00, the final R = 0.0530 and wR = 0.150 for 1348 observed reflections (I＞ 2σ(I)). X-ray analysis revealed that there exists a double bond in C(9)-C(11) with the bond length of 1.324(3) A, while the C(8)-C(9) bond length is 1.508(3) (A) and it may be assigned to a single bond. These results show that the C=C bond is not conjugated with the C=O bond. |
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| Keywords: | β γ-unsaturated ketone terpenoid crystal structure samarium |
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