Hetero- and homo-leptic Ru(II) catalyzed synthesis of cyclic carbonates from CO2; Synthesis, spectroscopic characterization and electrochemical properties

Kilic A., Ulusoy M., DURGUN M., Tasci Z., Yılmaz İ., Cetinkaya B.

APPLIED ORGANOMETALLIC CHEMISTRY, cilt.24, sa.6, ss.446-453, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24 Sayı: 6
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1002/aoc.1638
  • Dergi Adı: APPLIED ORGANOMETALLIC CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.446-453
  • Anahtar Kelimeler: Ru(II) complexes, catalysts, carbon dioxide, cyclic carbonate, METAL-COMPLEXES, COUPLING REACTIONS, RUTHENIUM COMPLEX, SPECTRAL CHARACTERIZATION, MOLECULAR ELECTRONICS, EXCITED-STATES, DIOXIDE, OXIDE, DNA, EPOXIDES
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Based on the a ligand BDPPZ [(9a,13a-dihydro-4,5,9,14-tetraaza-benzo[b]triphenylene-11-yl)-phenyl-methanone] (1) and its polypyridyl hetero- and homoleptic Ru(II) metal complexes, [Ru(bpy)(2)L](PF6)(2) (2), [Ru(phen)(2)L](PF6)(2) (3), [Ru(dafo)(2)L](PF6)(2) (4), [Ru(dcbpy)(2)L](PF6)(2) (5) and (RuL3)(PF6)(2) (6) (where, L = ligand, bpy = 2,2'-bipyridine, phen = 1,10-phenantroline, dafo = 4,5-diazafluoren-9-one and dcbpy = 3,3'-dicarboxy-2,2'-bipyridine), have been synthesized and characterized by elemental analysis, UV-vis, FT-IR, H-1 and C-13-NMR spectra (for ligand), molar conductivity measurements and X-ray powder techniques. The electrochemical parameters of the substituted ligand and its polypyridyl hetero- and homoleptic Ru(II) metal complexes are reported by cyclic voltammetry. UV-vis spectroscopy is used to compare the differences between the conjugated 7 systems in this ligand and its Ru(II) metal complexes. The polypyridyl hetero- and homoleptic Ru(II) metal complexes also tested as catalysts for the formation of cyclic organic carbonates from carbon dioxide and liquid epoxides which served as both reactant and solvent. The results showed that the (Ru(L)(3))(PF6)(2) (6) complex is more efficient than the other Ru(II) complexes for the formation of cyclic organic carbonates from carbon dioxide. Copyright (C) 2010 John Wiley & Sons, Ltd.