Issue 3, 2012
From the journal:

Dalton Transactions

Can a meso-type dinuclear complex be chiral?: dinuclear β-diketonato Ru(III) complexes†

Hisako Sato,*a   Ryoichi Takase,b   Yukie Moric  and  Akihiko Yamagishi*b  

* Corresponding authors

a Graduated School of Science and Engineering, Ehime University, Matsuyama, Ehime, Japan
E-mail: sato.hisako.my@ehime-u.ac.jp
Fax: +81-89-927-9599
Tel: +81-89-927-9599

b Department of Chemistry, Toho University, Funabashi, Chiba, Japan

c Department of Chemistry, Ochanomizu University, Bunkyo-ku, Tokyo, Japan

Abstract

Dinuclear Ru(III) complexes, [Ru(III)(acac)2(dabe)Ru(III)(acac)2] (acacH = acetylacetone; dabeH2 = 1, 2-diacetyl-1,2-dibenzoylethane) and [Ru(III)(acac)2(tbet)Ru(III)(acac)2] (tbetH2 = 1,1,2,2-tetrabenzoylethane) were synthesized by reacting [Ru(acac)2(CH3CN)2]PF6 with dabeH2 and tbetH2 respectively, in toluene. The X-ray structural analysis of a meso-type dinuclear Ru(III) complex, ΔΛ–[Ru(III)(acac)2(dabe)Ru(III)(acac)2], showed that the bridging part became chiral due to the orthogonal twisting of two non-symmetrical β-diketonato moieties. To confirm this conclusion, the complex was resolved chromatographically to provide a pair of optical antipodes. Such chirality in the bridging part was not generated for [Ru(III)(acac)2(tbet)Ru(III)(acac)2], because the β-diketonato moieties in tbet2− are symmetrical.

Graphical abstract: Can a meso-type dinuclear complex be chiral?: dinuclear β-diketonato Ru(III) complexes

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Article information

DOI
https://doi.org/10.1039/C1DT11133G
Article type
Paper
Submitted
16 Jun 2011
Accepted
27 Jul 2011
First published
06 Sep 2011

Dalton Trans., 2012,41, 747-751

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Can a meso-type dinuclear complex be chiral?: dinuclear β-diketonato Ru(III) complexes

H. Sato, R. Takase, Y. Mori and A. Yamagishi, Dalton Trans., 2012, 41, 747 DOI: 10.1039/C1DT11133G

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