Oxygen insertion into metal carbon bonds: formation of methylperoxo Pd(II) and Pt(II) complexes via photogenerated dinuclear intermediates.

Oxygen insertion into metal carbon bonds: formation of methylperoxo Pd(II) and Pt(II) complexes via photogenerated dinuclear intermediates.
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氧插入金属碳键:通过光生双核中间体形成甲基过氧 Pd(II) 和 Pt(II) 配合物。

DOI:
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发表时间:
2014
影响因子:
15
通讯作者:
George J. P. Britovsek
George J. P. Britovsek
中科院分区:
化学1区
文献类型:
--
作者:
Allan R. Petersen;Russell A. Taylor;Inmaculada Vicente;P. Mallender;H. Olley;Andrew J. P. White;George J. P. Britovsek

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具有取代的三联吡啶配体L的铂(II)和钯(II)络合物[M(CH 3)(L)] SbF 6经历光驱动的氧插入到金属甲基键中的反应,产生甲基过氧络合物[M(OOCH 3)(L)] SbF 6。甲基配体与三联吡啶配体6,6 ″-位上的取代基(NH 2、NHMe或CH 3)的空间相互作用使甲基配体活化,氧插入反应容易发生。所有配合物在固态和溶液中均表现出分子间π···π或M···M相互作用,在辐照下可形成激发态三重态双核M-M配合物。提出了一种机制,即一个双核的中间体是在照射后,在激发态具有减弱的M-C键,导致在所观察到的氧插入反应产生。
Platinum(II) and palladium(II) complexes [M(CH3)(L)]SbF6 with substituted terpyridine ligands L undergo light-driven oxygen insertion reactions into metal methyl bonds resulting in methylperoxo complexes [M(OOCH3)(L)]SbF6. The oxygen insertion reactions occur readily for complexes with methyl ligands that are activated due to steric interaction with substituents (NH2, NHMe or CH3) at the 6,6″-positions on the terpyridine ligand. All complexes exhibit attractive intermolecular π···π or M···M interactions in the solid state and in solution, which lead to excited triplet dinuclear M-M complexes upon irradiation. A mechanism is proposed whereby a dinuclear intermediate is generated upon irradiation that has a weakened M-C bond in the excited state, resulting in the observed oxygen insertion reactions.
DOI: 10.1021/ja107780w
发表时间: 2010-10-20
影响因子: 15
作者:
Ye Y;Ball ND;Kampf JW;Sanford MS
通讯作者: Sanford MS
DOI: 10.1021/ja904116k
发表时间: 2009-08-12
影响因子: 15
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发表时间: 2010-02-10
期刊: Chemical reviews
影响因子: 62.1
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通讯作者: Sanford MS