Rh(I) and Pd(II) complexes of methoxy functionalized heterocyclic carbene: Synthesis and characterization

Gunay M. E., Aygun M., Kartal A., Cetinkaya B., Kendi E.

CRYSTAL RESEARCH AND TECHNOLOGY, cilt.41, sa.6, ss.615-621, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 6
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1002/crat.200510635
  • Dergi Adı: CRYSTAL RESEARCH AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.615-621
  • Anahtar Kelimeler: coordination chemistry, rhodium, palladium, carbene complexes, crystal structure, METAL-COMPLEXES, RUTHENIUM COMPLEX, STABLE CARBENES, METATHESIS, RHODIUM(I), CHEMISTRY, CATALYSIS, LIGANDS, PALLADIUM(II), PHOSPHINE
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

A new methoxy functionalized 2-(trichloromethyl)-1,3-diarylimidazolidin (6) was synthesized as the precursor for N-heterocyclic carbene complexes of Pd(II) and Rh(I) by the condensation of N,N'-bis(2,4-dimethoxyphenyl)-1,2-diaminoethane with chloral. The structures of all compounds have been elucidated by a combination of multinuclear NMR spectroscopy, elemental analysis and in one instance, by single crystal X-ray diffraction. Compound 8, C27H34N2O4ClRh, crystallizes in the triclinic space group P-1 with cell dimensions a = 9.7642(12)angstrom, b = 11. 1914(11)angstrom, c = 13.0102(14)angstrom, alpha = 104.034(9)degrees, beta = 106.658(9)degrees, gamma = 99.658(9)degrees with Z = 2. The molecular structure of 8 shows the geometry around the Rh metal to be a slightly distorted square planar. The crystal structure shows the formation of centrosymmetric dimers via intermolecular C-H...Cl hydrogen bonds. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.