Synthesis and structure determination of ruthenium and osmium complexes with 2,6-bis-(diphenylphosphinomethyl) pyridine

  • Li Zaoying
  • Che Chiming
  • Poon Chungkwong


2,6-Bis (diphenylphosphinomethyl) pyridine (PNP) reaction with Na2OsCl6 · 6H2O to give the five coordinated, sixteen-electron complex Os (PNP)Cl2. In the presence of formaldehyde, the reaction between Na2OsCl6· 6H2O and PNP proceeds rapidly in boiling ethanol to give the coordinately saturated Os(PNP)Cl2(CO). The IR spectrum of Os(PNP)Cl2(CO) shows a strong absorption band at 1 970 cm−1 assignable tov stretch. PNP reacts with RuCl2(PPh3)3 and RuCl2(DMSO)4 (DMSO=dimethyl sulfoxide) to give Ru(PNP)Cl2 (PPh3) and Ru(PNP)Cl2 (DMSO) respectively. The average Ru−Cl, Ru−P and Ru−N bond distance in Ru(PNP)Cl2(PPh3) determineby X-ray crystallography are 0.242, 0.236 and 0.216 nm, respectively.

Key words

synthesis complex crystal structure 


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Copyright information

© Springer 1996

Authors and Affiliations

  • Li Zaoying
    • 1
  • Che Chiming
    • 2
  • Poon Chungkwong
    • 2
  1. 1.Department of ChemistryWuhan UniversityWuhanChina
  2. 2.Department of ChemistryThe University of Hong KongHong Kong

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