Solvent-dependent interconversions between Rh(I), Rh(II), and Rh(III) complexes of an aryl-monophosphine ligand.

Solvent-dependent interconversions between Rh(I), Rh(II), and Rh(III) complexes of an aryl-monophosphine ligand.
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芳基单膦配体的 Rh(I)、Rh(II) 和 Rh(III) 配合物之间的溶剂依赖性相互转化。

DOI:
10.1002/chem.200700805
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
D. Milstein
D. Milstein
中科院分区:
--
文献类型:
--
作者:
M. Montag;G. Leitus;L. Shimon;Yehoshoa Ben‐David;D. Milstein

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芳基-单膦配体α(2)-(二异丙基膦基)异杜烯(1)与Rh(I)前体[Rh(coe)(2)(丙酮)(2)]BF(4)(coe=环辛烯)在不同溶剂中的反应产生了铑的所有三种常见氧化态的络合物,这取决于所使用的溶剂。当反应在甲醇中进行时,得到环化的、溶剂稳定的Rh(III)烷基氢化物配合物(2)。然而,当反应在丙酮或二氯甲烷中进行时,在没有添加氧化还原试剂的情况下获得双核η(6)-芳烃Rh(II)配合物(5)。此外,当将乙腈加入到Rh(II)或Rh(III)络合物的溶液中时,得到新的溶剂稳定的、非环化的Rh(I)络合物(6)。在这份报告中,我们描述了不同的配合物,这是充分的特点,并探测背后的显着的溶剂效应观察到的过程。
Reaction of the aryl-monophosphine ligand alpha(2)-(diisopropylphosphino)isodurene (1) with the Rh(I) precursor [Rh(coe)(2)(acetone)(2)]BF(4) (coe=cyclooctene) in different solvents yielded complexes of all three common oxidation states of rhodium, depending on the solvent used. When the reaction was carried out in methanol a cyclometalated, solvent-stabilized Rh(III) alkyl-hydride complex (2) was obtained. However, when the reaction was carried out in acetone or dichloromethane a dinuclear eta(6)-arene Rh(II) complex (5) was obtained in the absence of added redox reagents. Moreover, when acetonitrile was added to a solution of either the Rh(II) or Rh(III) complexes, a new solvent-stabilized, noncyclometalated Rh(I) complex (6) was obtained. In this report we describe the different complexes, which were fully characterized, and probe the processes behind the remarkable solvent effect observed.
Rh(II) 和 Rh(I) 双腿琴凳复合物:结构、反应性和电子特性。
DOI: 10.1021/ic0204981
发表时间: 2003
期刊: Inorganic chemistry.
影响因子: --
作者:
Dixon,FeliciaM;Masar3rd,MartinS;Doan,PeterE;Farrell,JoshuaR;ArnoldJr,FrederickP;Mirkin,ChadA;Incarvito,ChristopherD;Zakharov,LevN;Rheingold,ArnoldL
通讯作者: Rheingold,ArnoldL