| Synthesis and Characterization of Monomeric Salicylaldiminato Lanthanide Complexes and Their Catalytic Behavior for Polymerization of ε—Caprolactone |
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| 引用本文： | 喻龙宝,姚英明,沈琪,张婧,吴立新,叶玲. Synthesis and Characterization of Monomeric Salicylaldiminato Lanthanide Complexes and Their Catalytic Behavior for Polymerization of ε—Caprolactone[J]. 中国化学, 2003, 21(4): 442-445. DOI: 10.1002/cjoc.20030210418 |
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| 作者姓名： | 喻龙宝 姚英明 沈琪 张婧 吴立新 叶玲 |
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| 作者单位： | Department of Chemistry and Chemical Engineering，Suzhou University，Department of Chemistry and Chemical Engineering，Suzhou University，Department of Chemistry and Chemical Engineering，Suzhou University，Key Laboratory of Supramolecular Structure and Materials of Ministry of Education，Jilin University，Key Laboratory of Supramolecular Structure and Materials of Ministry of Education，Jilin University，Key Laboratory of Supramolecular Structure and Materials of Ministry of Education，Jilin University Suzhou，Jiangsu 215006，China，Suzhou，Jiangsu 215006，China，Suzhou，Jiangsu 215006，China，State Key Laboratory of Organometallic Chemistry，Shanghai Institute of Organic Chemistry，Chinese Academy of Sciences，Shanghai 200032，China，Changchun，Jilin 130023，China，Changchun，Jilin 130023，China，Changchun，Jilin 130023，China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina (No .2 0 0 72 0 2 7) |
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| 摘 要： | IntroductionSchiffbaseligandscanbeusedtoprovideastereochem icallyrigidligandframeworkinhomogenousprecatalystsofsomemetals,suchassalenCrcatalystsinasymmetricring openingreactionofepoxide1andsalenAlinring openingpolymerizationoflactideandrelatedcyclicesters .2 Recently ,itwasreportedthatthebidentateSchiffbasecomplexesofearlyandlatetransitionmetalscanserveaspromisingalterna tivestometallocenecatalystsforthepolymerizationofα olefins.3Therefore ,theapplicationsofSchiffbaseligandsinorganometallic…
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| 关 键 词： | 镧配合物 合成 晶体结构 聚ε－已内酯 接触反应 |
Synthesis and Characterization of Monomeric Salicylaldiminato Lanthanide Complexes and Their Catalytic Behavior for Polymerization of ϵ‐Caprolactone |
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| Yu Long‐Bao,Yao Ying‐Ming,Shen Qi,Zhang Jing,Wu Li‐Xin,Ye Ling. Synthesis and Characterization of Monomeric Salicylaldiminato Lanthanide Complexes and Their Catalytic Behavior for Polymerization of ϵ‐Caprolactone[J]. Chinese Journal of Chemistry, 2003, 21(4): 442-445. DOI: 10.1002/cjoc.20030210418 |
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| Authors: | Yu Long‐Bao Yao Ying‐Ming Shen Qi Zhang Jing Wu Li‐Xin Ye Ling |
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| Abstract: | Anhydrous LnCl3 reads with 2 equiv. of the sodium salt of the bidentate Schiff base N‐(2, 6‐diisopropylphenyl) salicylaldimine in THF to form the monomeric lanthanide chlorides [2‐OC6H4CH = N(2,6‐i‐Pr2C6H3)]2LnCl(THF) [Ln=Yb (1), Er (2)]. Complex 1 crystallizes in P1 space group with a = 0.9215(2) nm, b = 1.36612(4) nm, c = 1.6899(2) nm, a = 74.83(3)°, β = 77.43(2)°, γ = 81.04(1)°, Z = 2, V = 1.9929(4) nm3, Dc = 1.402 g/cm3. The two complexes exhibited fairly good catalytic activity in the ring‐opening polymerization of ?‐caprolactone. |
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| Keywords: | Schiff base lanthanide complex synthesis crystal structure polymerization of ϵ‐caprolactone |
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