| Synthesis and Crystal Structure of [（ArO）2Sm（OPPh3）（μ—OH）]2（ArO=2,6—tBu—4—Me—C6H2O） |
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| 引用本文： | 姚英明,张可达,喻龙宝,沈琪,雷玉叶,孙杰. Synthesis and Crystal Structure of [（ArO）2Sm（OPPh3）（μ—OH）]2（ArO=2,6—tBu—4—Me—C6H2O）[J]. 结构化学, 2003, 22(2): 143-146 |
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| 作者姓名： | 姚英明 张可达 喻龙宝 沈琪 雷玉叶 孙杰 |
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| 作者单位： | YAO Ying-Ming ZHANG Ke-Da YU Long-Bao SHEN Qi② LEI Yu-Ye (Department of Chemistry and Chemical Engineering，Suzhou University，Suzhou 215006，China) SUN Jie (Shanghai Institute of Organic Chemistry，The Chinese Academy of Sciences，Shanghai 200032，China) |
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| 基金项目： | Financially supported by NNSFC (20072027)，the Education Department of Jiangsu province and the Key Laboratory of Organic Synthesis of Jiangsu province |
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| 摘 要： | 1 INTRODUCTION In recent years, the syntheses, structures and reactivities of aryloxo lanthanide complexes have attracted a great deal of attention due to their various applications as homogeneous catalysts for organic reactions and precursors for organolan- thanide syntheses[1]. However, the reactivity of divalent lanthanide aryloxides has seldom been studied[2]. We have previously reported that (ArO)2- Sm(THF)4 (ArO = OC6H2-2,6-di-tert-butyl-4-Me) can efficiently initiate the poly…
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| 关 键 词： | 镧系元素 合成 晶体结构 芳醚 钐 配合物 |
Synthesis and Crystal Structure of [(ArO)2Sm-(OPPh3)(μ-OH)]2(ArO = 2,6-tBu-4-Me-C6H2O) |
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| Abstract: | The title complex, [(ArO)2Sm(OPPh3)(μ-OH)]2 (ArO = 2,6-tBu2-4-Me-C6H2O),was obtained by the hydrolysis reaction of divalent samarium aryloxide, Sm(ArO)2(THF)4, in the presence of triphenylphosphine oxide (OPPh3) in toluene. Crystal data: C96H124O8P2Sm2, Mr =1768.77, monoclinic, space group P21/n, a = 15.276(6), b = 19.406(9), c = 19.320(7) A, β =108.59(2)°, V = 5428(3) A3, Z = 2, Dc = 1.081 g/cm3, F(000) = 1836, T = 293 K, λ(MoKα) =0.71069 A andμ = 11.47 cm-1. The final R = 0.072 and wR = 0.092 for 2456 observed reflections with Ⅰ＞ 3σ(Ⅰ). The molecule has a dimeric structure with two cetrosymmetric hydroxyl bridges.The samarium atom is coordinated by five oxygen atoms to form a distorted square-pyramid geometry with the average Sm-O(Ar) distance of 2.18 A. |
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| Keywords: | lanthanide samarium aryloxide crystal structure |
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