Der erste Heterometallcluster mit Borol‐Liganden; Stabilisierung von formalen 14ePd‐Zentren in der Elektronenmangelverbindung [{[(η5‐C4H4BPh)(CO)3Re]Pd}2]

Braunstein, Pierre; Englert, Ulli; Herberich, Gerhard E.; Neuschütz, Mark

doi:10.1002/ange.19951070913

Cited by 7 publications

(1 citation statement)

References 33 publications

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“…Braunstein, Herberich et al in a palladium/rhenium cluster of phenylborole (2.59 ). [33] Together these comparisons suggest the presence of only a very weak Pd!B interaction in complex 8, a hypothesis that is confirmed by the noticeable, albeit attenuated, pyramidalization of the boron environment (AEB a = 354.98). The geometric data collected for the Rh, Pt and Pd complexes of the DPB ligand reveal marked variations in the extent of the M!B interaction, even within such an isoelectronic series.…”

Section: Figure 5 Molecular Structures Of Complexes [Ptcl 2 a C H T mentioning

confidence: 66%

Ambiphilic Diphosphine–Borane Ligands: Metal→Borane Interactions within Isoelectronic Complexes of Rhodium, Platinum and Palladium

Bontemps

Sircoglou

Bouhadir

et al. 2007

Chemistry A European J

162

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Coordination of an ambiphilic diphosphine-borane (DPB) ligand to the RhCl(CO) fragment affords two isomeric complexes. According to X-ray diffraction analysis, each complex adopts a square-pyramidal geometry with trans coordination of the two phosphine buttresses and axial RhB contacts, but the two differ in the relative orientations around the rhodium and boron centres. DFT calculations on the actual complexes provide insight into the influence of the pi-accepting CO co-ligand, compared with previously reported complexes [Rh(mu-Cl)(dpb)]2 and [RhCl(dmap)(dpb)]. In addition, comparison of the nu(CO) frequency of [RhCl(CO)(dpb)] with that of the related borane-free complex [RhCl(CO)(iPr2PPh)2] substantiates the significant electron-withdrawing effect that the sigma-accepting borane moiety exerts on the metal. Valence isoelectronic [PtCl2(dpb)] and [PdCl2(dpb)] complexes have also been prepared and characterized spectroscopically and structurally. The pronounced influence of the transition metal on the magnitude of the M-->B interaction is highlighted by geometric considerations and NBO analyses.

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Section: Figure 5 Molecular Structures Of Complexes [Ptcl 2 a C H T mentioning

confidence: 66%