The Effect of Substituents at Lewis Acidic Bismuth(III) Centers on Its Propensity to Bind a Noble Metal Donor.

The Effect of Substituents at Lewis Acidic Bismuth(III) Centers on Its Propensity to Bind a Noble Metal Donor.
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路易斯酸性铋 (III) 中心的取代基对其与贵金属供体结合倾向的影响

DOI:
10.1021/acs.inorgchem.5b02740
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发表时间:
2016
影响因子:
4.6
通讯作者:
C. Limberg
C. Limberg
中科院分区:
化学2区
文献类型:
--
作者:
C. Tschersich;S. Hoof;N. Frank;C. Herwig;C. Limberg

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To investigate the effect of X in ambiphilic compounds BiX(o-PPh2-C6H4)2, PBiP-X, on metallophilic Pt–Bi interactions in its PtCl2complexes two new derivatives PBiP-Me and PBiP-C6F5were synthesized. Reaction with dichloro(1,5-cyclooctadiene)platinum(II) led to the platinum(II) complexes [PtCl2(PBiP-Me)],3, and [PtCl2(PBiP-C6F5)],4, which together with the halide [PtCl2(PBiP-Cl)],2, reported previously, establish a series of related PBiP-X complexes differing only in X. This could be complemented by accessing [PtCl2(PBiP-OTf)],5, through the reaction of2with AgOTf. Analysis of the geometrical and electronic structures of these complexes revealed that in all cases the platinum(II) centers act as donors (through their filled dz2orbitals) to the bismuth(III) centers (possessing σ*(Bi-X)/6p acceptor orbitals). The strength of these interactions increases with increasing electron-withdrawing character of X, which supports the conceptual approach in constructing this new class of compounds.
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