Synthesis and characterization of lithium and yttrium complexes containing tridentate pyrrolyl ligands. Single-crystal X-ray structures of {Li[C 4H2N(CH2NMe2)2-2,5]} 2 (1) and {[C4H2N(CH2NMe 2)2-2,5]YCl2(μ-Cl) • Li(OEt 2)2}2 2

Pei Cheng Kuo, Jr Chieng Chang, Wen Yi Lee, Hon Man Lee, Jui Hsien Huang

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Abstract

The lithiated pyrrolyl ligand, {Li[C4H2N(CH 2NMe2)2-2,5]}2 (1) was synthesized and structurally characterized. Reaction of 1 with YCl3 in the molar ratio 1:1 in diethyl ether at room temperature afforded a di-yttrium di-lithium tetranuclear complex, {[C4H2N(CH2NMe 2)2-2,5]YCl2(μ-Cl) • Li(OEt 2)2}2 (2) in 87% yield. Compounds 1 and 2 were characterized by NMR spectroscopy and single crystal X-ray crystallography. Compound 1 shows high reactivity for the ring-opening polymerization of ε-caprolactone.

Original languageEnglish
Pages (from-to)4168-4174
Number of pages7
JournalJournal of Organometallic Chemistry
Volume690
Issue number18
DOIs
Publication statusPublished - 2005 Sep 15

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All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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