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Synthesis, structure, and properties of rare earth chloride complexes {[Ap´Y(THF)](μ2-Cl)2(μ3-Cl)Li(THF)}2, {[Ap9MeLn(THF)](μ2-Cl)3Li(THF)2}2 (Ln = Y, Nd, Sm), and {[Ap*Ln(THF)](μ2-Cl)3Li(THF)2}2 (Ln = Nd, Sm) containing amidopyridinate ligands

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Abstract

New amidopyridinate chloride complexes {[Ap´Y(THF)](μ2-Cl)2(μ3-Cl)Li(THF)}2, {[Ap9MeLn(THF)](μ2-Cl)3Li(THF)2}2 (Ln = Y, Nd, Sm), and {[Ap*Ln(THF)](μ2-Cl)3Li(THF)2}2 (Ln = Nd, Sm) were synthesized by the exchange reactions of lithium amidopyridinates ApLi(OEt2) (Ap´ is N-(2,6-diisopropylphenyl)-6-(2,6-dimethylphenyl)pyridine-2-amine; Ap9Me is N-mesityl-6-(2,4,6-triisopropylphenyl)pyridine-2-amine; Ap* is N-(2,6-diisopropylphenyl)-6-(2,4,6-triisopropylphenyl)pyridine-2-amine) with anhydrous rare earth chlorides. The X-ray diffraction study showed that the amidopyridinate chloride derivatives are heterobimetallic ate-complexes, in which two rare earth metal atoms are linked by bridging chloride ligands and bridging Cl—Li—Cl groups. The three-component system {[Ap*Nd(THF)](μ2-Cl)3Li(THF)2}2—AlBui 3—[Ph3C][B(C6F5)4] (1: 10: 1 molar ratio) catalyzes the isoprene polymerization.

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Authors and Affiliations

  1. G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 ul. Tropinina, 603950, Nizhny Novgorod, Russian Federation

    D. M. Lyubov, V. Yu. Rad´kov, A. O. Tolpygin, A. V. Cherkasov, G. K. Fukin & A. A. Trifonov

  2. N. I. Lobachevsky Nizhny Novgorod State University, 23 prosp. Gagarina, 603950, Nizhny Novgorod, Russian Federation

    D. M. Lyubov, G. K. Fukin & A. A. Trifonov

Authors
  1. D. M. Lyubov
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  2. V. Yu. Rad´kov
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  3. A. O. Tolpygin
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  4. A. V. Cherkasov
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  5. G. K. Fukin
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  6. A. A. Trifonov
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Correspondence to A. A. Trifonov.

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Dedicated to Academician of the Russian Academy of Sciences V. I. Minkin on the occasion of his 80th birthday.

Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 0618—0625, March, 2015.

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Lyubov, D.M., Rad´kov, V.Y., Tolpygin, A.O. et al. Synthesis, structure, and properties of rare earth chloride complexes {[Ap´Y(THF)](μ2-Cl)2(μ3-Cl)Li(THF)}2, {[Ap9MeLn(THF)](μ2-Cl)3Li(THF)2}2 (Ln = Y, Nd, Sm), and {[Ap*Ln(THF)](μ2-Cl)3Li(THF)2}2 (Ln = Nd, Sm) containing amidopyridinate ligands. Russ Chem Bull 64, 618–625 (2015). https://doi.org/10.1007/s11172-015-0908-4

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  • DOI: https://doi.org/10.1007/s11172-015-0908-4

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