Heterobimetallic nitrido-bridged Ru(II)NOs(VIII) and Ru(II)NOs(VI) complexes containing ruthenium porphyrins

Wa Hung Leung, Joyce L.C. Chim, Willetta Lai, Leo Lam, Wing Tak Wong, Wing Hang Chan, Chi Hung Yeung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

20 Citations (Scopus)


Treatment of Ru(por)(NO)(OTf) (por=dianion of 2,3,7,8,12,13,17,18-octaethylporphyrin H2(OEP) or 5,10,15,20-tetra(p-tolyl)porphyrin H2(TTP), OTf=triflate) with [NnBu4][OsO3N] afforded the nitrido-bridged Ru(II)-Os(VIII) complexes [(por)(NO)RuNOsO3] (por=OEP (3) or TTP (4)). The structure of 3 has been established by X-ray crystallography. The Ru-N(O), Ru-N(Os) and Os-N distances in 3 are 1.83(2), 2.03(1) and 1.79(1) Å, respectively; the Ru-N-O and Ru-N-Os angles are 153(1) and 138.4(8)°, respectively. Reaction of Ru(por)(NO)(OTf) with [NnBu4][OsNL2] (H2L=3,4-toluenedithiol) gave the nitrido-bridged Ru(II)-Os(VI) complexes (por)(NO)RuNOsL2(por=OEP (5), TTP (6)). Treatment of Ru(OEP)(NO)(OTf) with ReN(Et2dtc)2(Et2dtc=N,N-diethyldithiocarbamate) afforded the Ru(II)-Re(V) complex (OEP)(NO)RuNRe(Et2dtc)2(OTf) (7). Complexes 3 and 4 exhibit porphyrin-centered oxidation along with Os(VIII)-Os(VII) and Ru(II)-Ru(I) reductions. Complexes 5 and 6 exhibit Os(VII)-Os(VI) and porphyrin ring oxidation along with Ru(II)-Ru(I) reduction.
Original languageEnglish
Pages (from-to)28-35
Number of pages8
JournalInorganica Chimica Acta
Issue number1
Publication statusPublished - 30 Jun 1999


  • Crystal structures
  • Nitrido-bridged complexes
  • Osmium complexes
  • Porphyrin complexes
  • Ruthenium complexes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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