Synthesis and characterization of nitrogen rich ruthenium complexes

Oded Halevi, Benny Bogoslavsky, Dan Grinstein, Francoise Tibika-Apfelbaum, Avi Bino

Research output: Contribution to journalArticlepeer-review

Abstract

Treatment of "ruthenium blue" in ethylene glycol with azide ions produced three ruthenium complexes having different nuclearities and oxidation states. The first, [Ru(N3)6]3- (1), a mono-nuclear RuIII hexaazide complex has been crystallized by using various counter-cations. The X-ray structure analysis of these salts has revealed a slightly distorted octahedral geometry with a Ru-N bond distance of 2.066(3) Å. The second, [Ru2N(N3)10] 6- (2), is a nitrido-bridged RuIII, RuIV complex. The Ru-N-Ru bond angle in 2 is 170.8(2)° and the N 5Ru-N-RuN5 system adopts a staggered configuration. The average Ru-N bond distances of the two metal atoms are slightly different. These parameters do not agree with the widely accepted view that most nitrido bridged ruthenium atoms have a RuNRu allene type structure. Complex 3, [(C 2H4O2)2RuN]-, a by-product of the reaction, is a RuVI complex containing a triply-bonded terminal nitride with a RuN bond distance of 1.598(3) Å.

Original languageAmerican English
Pages (from-to)228-232
Number of pages5
JournalInorganica Chimica Acta
Volume421
DOIs
StatePublished - 1 Sep 2014

Keywords

  • Azides
  • Nitrides
  • Nitrido-bridged
  • Ruthenium

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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