PBiP Pincer Complexes of Platinum, Palladium, and Iridium Featuring Metal–Metal Bonds Synthesized by Oxidative Addition of Bismuth–Halide Bonds
PBiP Pincer Complexes of Platinum, Palladium, and Iridium Featuring Metal–Metal Bonds Synthesized by Oxidative Addition of Bismuth–Halide Bonds
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铂、钯和铱的 PBiP 钳配合物,具有通过铋-卤化物键的氧化加成合成的金属-金属键
DOI:
10.1021/acs.organomet.5b00439
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发表时间:
2015
期刊:
影响因子:
2.8
通讯作者:
C. Limberg
中科院分区:
文献类型:
--
作者:
C. Tschersich;B. Braun;C. Herwig;C. Limberg
The compound BiCl(o-PPh2-C6H4)2, PBiP-Cl, which in previous work had been shown to form complexes with pronounced M→Bi character, when metal(I) ions of group 11 or PtIIand PdIIions were coordinated, behave differently in contact with late metal atoms in low oxidation states, known to easily undergo oxidative additions: Treatment of PBiP-Cl with M(PPh3)4, with M = Pt, Pd, led to the formal insertion of M into the Bi–Cl bond to yield complexes [MCl(PBiP)]. Analogues PBiP-X with X = Br, I that could be accessed behaved similarly, producing [MX(PBiP)]. Both types of complexation reactionscoordination of PBiP-Cl as an ambiphilic ligand and oxidative additionwere observed to occur when [Ir(acac)(cod)] was chosen as the precursor compound. NMR investigations clearly indicated the presence of [IrI(acac)(PBiP-Cl)] and [IrIII(acac)Cl(PBiP)] beside each other in solution, from which, however, only [IrIII(acac)Cl(PBiP)] could be crystallized. DFT results showed that both products differ only slightly in energy. Reaction of PBiP-Cl with [Ir(acac-F6)(cod)] led only to the iridium(III) product, underlining that electronic effects sensitively influence the course of reactivity and the position of the equilibrium.
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DOI:
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发表时间:
1999
期刊:
影响因子:
--
作者:
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DOI:
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发表时间:
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期刊:
Zeitschrift für anorganische und allgemeine Chemie
影响因子:
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影响因子:
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