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Ligand substitution on HRu3(μ-NC5H3CO2Me)(CO) 10 and H2Ru3(μ-NC5H3CO 2Me)2(CO)8. Crystal structures of (μ-H)Ru3(μ-η2-NC5H3CO 2Me)(CO)9(PPh3)

  • Melvyn Rowen Churchill
  • , Robert Hall
  • , Charles H. Lake
  • , Laurence M. Toomey
  • , Jerome B. Keister
  • SUNY Buffalo

Research output: Contribution to journalArticlepeer-review

Abstract

Clusters of the series HRu2(μ-NC5H3CO2Me)(CO) 10-n(PPh3)n (n = 0,1) and H2Ru3(μ-NC5H3CO 2Me)2(CO)8-n(PPh3)n (n = 0,1) have been prepared. X-ray crystallographic studies of HRu3(μ-NC5H3-5-CO2Me)(CO) 9(PPh3) and H2Ru3(μ-NC5H3-5-CO 2Me)2(CO)7(PPh3) have been performed. The regiochemistry of PPh3 substitution in both is consistent with greater cis labilization by the N-donor atom compared with the C-donor atom of the nicotinyl ligand. The monohydrido-methyl nicotinate derivative, (μ-H)Ru3(μ-η2-NC5H3CO 2Me)(CO)9(PPh3), crystallizes in the orthorhombic space group Pbca (No. 61) with a = 22.891(3), b= 12.641(1), c = 24.694(3) Å, V=7145.6(14)Å3and Z = 8. The structure was solved and refined to R = 2.60% for 2191 data with |F0| ≥ 6σ(F0). The Ru3 triangle has interatomic distances (in increasing order) of Ru(1)-Ru(3) = 2.854(1), Ru(2)-Ru(3) = 2.861(1) and Ru(1)-Ru(2) = 2.910(1)Å.

Original languageEnglish
Pages (from-to)211-229
Number of pages19
JournalJournal of Coordination Chemistry
Volume47
Issue number2
DOIs
StatePublished - 1999

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