Synthesis and Structure of Ruthenium Nitroso Complexes with Nitrate Anions and Pyridine as Ligands

G. A. Kostin, Ya A. Nikiforov, N. V. Kuratieva

Research output: Contribution to journalArticlepeer-review

Abstract

A reaction of nitric acid with [RuNO(Py)2(NO2)2OH] without heating is shown to result in the complete substitution of nitro and hydroxo ligands with the formation of [RuNO(Py)2(NO3)3] (1). The high lability of nitrate ligands allows their subsequent substitution with the formation of [RuNO(Py)3(NO3)(OH)](NO3) complex (2). The compounds are characterized by the elemental analysis and IR spectroscopy. Their crystal structures are determined by X-ray crystallography. The crystallographic data for complex 1 are: a = 8.9174(4) Å, b = 12.2822(5) Å, c = 15.9104(6) Å, β = 94.4160(10)°, space group P21/c, Z = 4, R = 0.0468 [I > 2σ(I)]; for complex 2: a = 10.8147(4) Å, b = 12.6004(5) Å, c = 14.2201(5) Å, β = 101.5750(10)°, space group Cc, Z = 4, R = 0.0174. Complex 1 is obtained as a facial isomer. Oxygen atoms of coordinated nitrate ligands occupy one of the faces of a distorted RuN3O3 octahedron. In complex 2, the hydroxo ligand is coordinated in the trans-position to the nitroso group. The equatorial positions in the octahedral ruthenium environment are occupied by three nitrogen atoms of pyridine ligands and the oxygen atom of the nitrate ligand.

Original languageEnglish
Pages (from-to)86-94
Number of pages9
JournalJournal of Structural Chemistry
Volume61
Issue number1
DOIs
Publication statusPublished - 1 Jan 2020

Keywords

  • nitrate complexes
  • nitroso complexes
  • pyridine
  • ruthenium
  • X-ray crystallography
  • NITRIC-ACID SOLUTIONS
  • ISOMERS

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