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

Küçük Resim Yok

Tarih

2010

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Wiley-Blackwell

Erişim Hakkı

info:eu-repo/semantics/closedAccess

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.

Açıklama

Anahtar Kelimeler

Ru(II) complexes, catalysts, carbon dioxide, cyclic carbonate

Kaynak

Applied Organometallic Chemistry

WoS Q Değeri

Q2

Scopus Q Değeri

Cilt

24

Sayı

6

Künye