| 新型单和双取代四氢茚基稀土氯化物的合成 |
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| 引用本文： | 张榕本,筒井稔. 新型单和双取代四氢茚基稀土氯化物的合成[J]. 有机化学, 1982, 0(5) |
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| 作者姓名： | 张榕本 筒井稔 |
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| 作者单位： | 中国科学院化学研究所，美国Texas A&M大学 北京 |
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| 摘 要： | 以四氢呋喃为溶剂,将四氢茚与金属钾反应得到针晶状四氢茚钾(THIK)。后者与无水稀土氯化物反应,得到新型单取代或双取代的四氢茚基稀土氯化物[THI]_xLnCl_(3-x)(x=1,2;Ln=La,Nd及Er)。其中[THI]LaCl_2和[THI]NdCl_2是文献中尚未报道过的单取代轻稀土化物。这些化合物均经元素分析、熔点、紫外-可见光谱、红外光谱、质谱、~1H和~(13)C核磁谱等鉴定。
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| 关 键 词： | 稀土金属络合物 茚(P) 空间效应 制备 |
Synthesis of New Mono-and Bis-Tetrahydroindenyl Lanthanides |
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| Zhang Rongben Institute of Chemistry,Academia Sinica,Beijing Tsutsui Minoru. Synthesis of New Mono-and Bis-Tetrahydroindenyl Lanthanides[J]. Chinese Journal of Organic Chemistry, 1982, 0(5) |
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| Authors: | Zhang Rongben Institute of Chemistry Academia Sinica Beijing Tsutsui Minoru |
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| Affiliation: | Zhang Rongben Institute of Chemistry,Academia Sinica,Beijing Tsutsui Minoru Department of Chemistry,Texas A & M University |
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| Abstract: | A series of new organolanthanide compounds containing tetrahydroin-denyl ligand[THI]LnCl_3-x(Ln=La,Nd & Er;x=1,2)were synthesized by reac-ting tetrahydroindenyl potassium with anhydrous lanthanide chlorides.Tetrahydro-indenyl lanthanum dichloride and tetrahydroindenyl neodymium dichloride arethe first monosubstituted compounds with lanthanide elements lighter than Pm thatwas reported previously in literature.These compounds are more stable in air andmore soluble in non-polar solvents than the cyclopentadienyl lanthanides(such asCp_3La or Cp_3Nd).It is suggested that these new compounds are useful precursors for the preparation of air-stable a-bonded alkyl lanthanides and organolanthanidehydrides,which might be potential in homogeneous catalysts. All these compounds were identified by elemental analysis,melting point mea-surements and the spectroscopic methods. |
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| Keywords: | rare earth metal complex indene(P) steric effect preparation. |
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