Isolation and characterization of stable, distinctly bent, trans-chelated bisphosphine palladium(0) species

Thomas Schnetz; Marc Roder; Frank Rominger

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Isolation and characterization of stable, distinctly bent, trans-chelated bisphosphine palladium(0) species

机译：稳定且明显弯曲的反螯合双膦钯（0）物种的分离和表征

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The novel ligands 3 and 4 (i-Pr-Rucaphos, Cy-Rucaphos) react with (tmeda)PdMe2 yielding ethane and distinctly bent, trans-spanning bisphosphine chelated 14-electron palladium(0) species, which have been fully characterized, including single crystal X-ray diffraction. Pd(0) complexes (d~(10)) play an outstandingly important role as reactive intermediates in homogeneous catalysis, in particular in combination with phosphines or related ligands, presumably both as LPd(0) or L2Pd(0) species with 12 or 14 valence electrons (VEs). Due to their capability to activate e.g. carbon-heteroatom bonds as an initial step of many catalytic transformations, in particular of C-C and C-heteroatom coupling reactions, experimental and theoretical investigations of these compounds are of great interest.

机译：新的配体3和4（i-Pr-Rucaphos，Cy-Rucaphos）与（tmeda）PdMe2反应生成乙烷并明显弯曲，跨跨双膦螯合的14电子钯（0）物种，已充分表征，包括单晶X射线衍射。 Pd（0）络合物（d〜（10））在均相催化中作为反应性中间体发挥着非常重要的作用，特别是与膦或相关配体结合使用时，大概都是LPd（0）或L2Pd（0）物种具有12或10 14个价电子（VEs）。由于它们具有激活功能，例如碳-杂原子键是许多催化转化（尤其是C-C和C-杂原子耦合反应）的起始步骤，这些化合物的实验和理论研究备受关注。

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《Dalton transactions: An international journal of inorganic chemistry》 |2008年第17期|共3页
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Thomas Schnetz; Marc Roder; Frank Rominger;
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Isolation and characterization of stable, distinctly bent, trans-chelated bisphosphine palladium(0) species

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