Two coordination modes of TCNE in the ruthenium amidinates: The first example providing experimental evidence for κ1-N to η2-C rearrangement

Hideo Kondo, Takashi Sue, Akira Kageyama, Yoshitaka Yamaguchi, Yusuke Sunada, Hideo Nagashima

研究成果: Contribution to journalShort survey査読

8 被引用数 (Scopus)

抄録

Reactions of Cp*Ru(κ2-N(R){double bond, long}C(R′)NR) (1a; R = iPr, R′ = Me, 1b; R = tBu, R′ = Ph) with TCNE initially give dark green colored intermediary species, which are readily converted to brown colored "η2-C" coordination complexes, Cp*Ru(κ2-N(R){double bond, long}C(R′)NR)(η2-TCNE) (3a; R = iPr, R′ = Me, 3b; R = tBu, R′ = Ph). These "η2-C" complexes are characterized by spectroscopy and crystallography. A stable ruthenium amidinate having a "κ1-N"-coordinated TCNE, Cp*Ru(κ2-N(tBu){double bond, long}C(Mes)NtBu)(κ1(N)-TCNE) (2c), is synthesized by treatment of Cp*Ru(κ2-N(tBu){double bond, long}C(Mes)NtBu) (1c) with TCNE, the structure of which is unequivocally confirmed by X-ray structure determination and the charge transfer nature is supported by ESR analysis. Close analogy in IR and UV-Vis spectroscopy of 2c with the dark green colored intermediary species formed from 1b suggests that this is "κ1-N" ruthenium amidinate, which is rearranged to the "η2-C" complex 3b.

本文言語英語
ページ(範囲)795-800
ページ数6
ジャーナルJournal of Organometallic Chemistry
694
5
DOI
出版ステータス出版済み - 3 1 2009

All Science Journal Classification (ASJC) codes

  • 生化学
  • 物理化学および理論化学
  • 有機化学
  • 無機化学
  • 材料化学

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