Volume 23, Issue 6 pp. 749-752

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Reaction of (Ph₂N)₂Sm(THF)₄ with Azobenzene: Synthesis, X-ray Structure and Catalytic Behavior of [(Ph₂N)(DME)Sm]₂(μ-η²:η²-N₂Ph₂)₂

Yuan Fu-Gen,

Yuan Fu-Gen

Department of Chemistry, Suzhou University, Suzhou, Jiangsu 215006, China

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Liu Xiu-Juan,

Liu Xiu-Juan

Department of Chemistry, University of Science and Technology of Suzhou, Suzhou, Jiangsu 215009, China

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Zhang Yong,

Zhang Yong

[email protected]

Project supported by the Qinglan Foundation of Jiangsu Province (No. HB2001-27) and the Foundation of Educational Commission of Jiangsu Prov-ince (No. 04KJD560171).

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Yuan Fu-Gen,

Yuan Fu-Gen

Department of Chemistry, Suzhou University, Suzhou, Jiangsu 215006, China

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Liu Xiu-Juan,

Liu Xiu-Juan

Department of Chemistry, University of Science and Technology of Suzhou, Suzhou, Jiangsu 215009, China

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Zhang Yong,

Zhang Yong

[email protected]

Project supported by the Qinglan Foundation of Jiangsu Province (No. HB2001-27) and the Foundation of Educational Commission of Jiangsu Prov-ince (No. 04KJD560171).

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First published: 12 July 2005

https://doi.org/10.1002/cjoc.200590749

Citations: 8

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Abstract

Reaction of divalent (Ph₂N)₂Sm(THF)₄ with 1 equiv. of azobenzene in THF and then crystallization of the product in DME-Et₂O mixed solvent produced the complex of [(Ph₂N)(DME)Sm]₂(μ-η²:η²-N₂Ph₂)₂ (1) in 65.0% yield. In complex 1, azobenzene molecules were reduced to be dianionic Ph₂ equation image ligands, bridging two samarium ions in two η²:η² fashions. One samarium ion was bonded to a DME molecule and a diphenyl amido ligand besides two Ph₂ ligands. The unusual Ln-η²-arene close interaction was found for the first time for diphenyl amido lanthanides. Complex 1 could catalyze the polymerization of methyl methacrylate and acrylonitrile

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Volume23, Issue6

June, 2005

Pages 749-752

Reaction of (Ph₂N)₂Sm(THF)₄ with Azobenzene: Synthesis, X-ray Structure and Catalytic Behavior of [(Ph₂N)(DME)Sm]₂(μ-η²:η²-N₂Ph₂)₂

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Reaction of (Ph₂N)₂Sm(THF)₄ with Azobenzene: Synthesis, X-ray Structure and Catalytic Behavior of [(Ph₂N)(DME)Sm]₂(μ-η²:η²-N₂Ph₂)₂