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Kilic, Ahmet; Palali, Ahmet Arif; Durgun, Mustafa; Tasci, Zeynep; Ulusoy, Mahmut
{ "DOI": "10.1016/j.saa.2013.04.124", "abstract": "A series of the mononuclear Cu(II) metal complexes containing the ligand Bdppz [(9a,13a-dihydro-4,5,9,14-tetraaza-benzo[b]triphenylene-11-yl)-phenyl-methanone] (L-1) and Aqphen [(12,17-dihydronaphthol[2,3-h]dipyrido[3,2-a:2',3'-c]-phenazine-12,17-dione)] (L-2) were synthesized and used as catalyst for the coupling of carbon dioxide (CO2) and liquid epoxide which served as both reactant and solvent. Dimethylamino pyridine (DMAP) was used as co-catalyst. The yields of epoxides to corresponding cyclic carbonates were determined by comparing the ratio of product to substrate in the H-1 NMR spectrum of an aliquot of the reaction mixture. The mononuclear Cu(II) complexes of these ligands were synthesized by treating an ethanol solvent of the appropriate ligand with a different molar amount of CuCl2 center dot 2H(2)O. The Cu(II) complexes were characterized by FT-IR, UV-Vis, elemental analysis, melting point analysis, mass spectra, molar conductivity measurements and magnetic susceptibility techniques. The reaction of the Bdppz and Aqphen ligands in a 1:1, 1:2 or 1:3 mole ratio with CuCl2 center dot 2H(2)O afforded ionic Cu(II) complexes in the presence of Et3N. (C) 2013 Elsevier B.V. All rights reserved.", "author": [ { "family": "Kilic", "given": " Ahmet" }, { "family": "Palali", "given": " Ahmet Arif" }, { "family": "Durgun", "given": " Mustafa" }, { "family": "Tasci", "given": " Zeynep" }, { "family": "Ulusoy", "given": " Mahmut" } ], "container_title": "SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY", "id": "16995", "issued": { "date-parts": [ [ 2013, 1, 1 ] ] }, "page": "432-438", "title": "The coupling of carbon dioxide and epoxides by phenanthroline derivatives containing different Cu(II) complexes as catalyst", "type": "article-journal", "volume": "113" }
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