CJCU

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (10): 1345.

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Low Temperature NMR Study on the Reactions Between Pd2X2(dpm)2(X=Cl-, Br-, I-) and H2S

WENG Wei-Zheng   

  1. Department of Chemistry, Xiamen University, Xiamen, 361005
  • Received:1993-02-28 Revised:1993-05-05 Online:1993-10-24 Published:1993-10-24

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Abstract: Low temperature NMRtechnique was used to investigate the reactions of H2Sand Pd2X2 (dpm)2(X=Cl-, Br-, I- ; dpm=Ph2PCH2PPh2) in CD2Cl2.The detail NMRdata for the reaction intermediate are presented which show that the reactions form the corresponding bridged-sulfide complexes via oxidative-addition of H2Sacross the Pd-Pd bond of Pd2X2(dpm)2 to give a hydrido(mercapto)intermediate, which subsequently liberates H2 to give Pd2X2(dpm)2(μ-S) species.

Key words: Dinuclear Pd(Ⅰ) complex containing bis(diphenylphosphino)methane, Hydrogen sul-fide, Reaction intermediate, Low temperature NMR

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