Showing papers by "Nevin Gürbüz published in 2010"
TL;DR: The new imidazolidin-2-ylidene silver complexes have been found to display effective antimicrobial activity against a series of bacteria and fungi.
Abstract: A series of imidazolidinium ligand precursors are metallated with Ag2O to give silver(I) N-heterocyclic carbene complexes. All compounds were fully characterized by elemental analyses, 1H-NMR, 13C-NMR and IR spectroscopy techniques. All compounds studied in this work were screened for their in vitro antimicrobial activities against the standard strains: Enterococcus faecalis (ATCC 29212), Staphylococcus aureus (ATCC 29213), Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853) and the fungi Candida albicans and Candida tropicalis. The new imidazolidin-2-ylidene silver complexes have been found to display effective antimicrobial activity against a series of bacteria and fungi.
56 citations
TL;DR: A series of benzimidazolium ligand precursors were metalated with RuCl 2 (p-cymene) 2 to give ruthenium(II) N-heterocyclic carbene complexes as mentioned in this paper.
Abstract: A series of benzimidazolium ligand precursors were metalated with [RuCl 2 (p-cymene)] 2 to give ruthenium(II) N-heterocyclic carbene complexes. All compounds were fully characterized by elemental analyses, 1 H NMR, 13 C NMR, and IR spectroscopy. The new benzimidazol-2-ylidene complexes have been found to be effective catalysis for the transfer hydrogenation of ketones by using 2-propanol as the hydrogen source in the presence of KOH.
50 citations
TL;DR: In this paper, the benzimidazol-2-ylidene carbene complexes of Ag(I) were prepared by interaction of the corresponding benzimideazolium salt with Ag2O in dichloromethane, and the new complexes were found to be effective antimicrobial activity against a series of bacteria and fungi.
Abstract: Novel benzimidazol-2-ylidene carbene complexes of Ag(I) were prepared by interaction of the corresponding benzimidazolium salt with Ag2O in dichloromethane. Their structures were characterized by elemental analyses, 1H-NMR, 13C-NMR and IR spectroscopy techniques. All compounds studied in this work were screened for their in vitro antimicrobial activities against the standard strains: Enterococcus faecalis (ATCC 29212), Staphylococcus aureus (ATCC 29213), Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853) and the fungi Candida albicans and Candida tropicalis. The new complexes were found to be effective antimicrobial activity against a series of bacteria and fungi. Copyright © 2010 John Wiley & Sons, Ltd.
39 citations
TL;DR: In this article, the bis(phosphino)amine ligands (Ph2P)2N-C6H3-R, where R = 3,5-OMe (1), 2,5-, 2,4-OME (2), 3,4-, or 3, 4-, were prepd. via aminolysis of the corresponding dimethoxyanilines with 2 equiv.
33 citations
TL;DR: The influence of the N-heterocyclic core and the Nsubstitutents on reactivity and regioselectivity of ruthenium catalysts has been examined in this paper.
15 citations
TL;DR: The palladium complexes derived from the salts 1a-f prepared in situ exhibit good catalytic activity in the Heck coupling reaction of aryl bromides under mild conditions.
Abstract: An efficient and stereoselective catalytic system for the Heck cross coupling reaction using novel 1,3-dialkyl-3,4,5,6-tetrahydropyrimidinium salts (1, LHX) and Pd(OAc)2 loading has been reported The palladium complexes derived from the salts 1a-f prepared in situ exhibit good catalytic activity in the Heck coupling reaction of aryl bromides under mild conditions
14 citations
TL;DR: Palladium (II) containing siliceous-MCM-41 has been prepared according to an original pathway by the reaction between silica precursors (imeo) and MCM41 as mentioned in this paper, which has been characterized by chemical analysis, X-ray powder diffraction, nitrogen sorption isotherms, and SEM and catalysis tests.
Abstract: Palladium (II) containing siliceous-MCM-41 has been prepared according to an original pathway by the reaction between silica precursors (imeo) and MCM-41. The resulting materials have been characterized by chemical analysis, X-ray powder diffraction, nitrogen sorption isotherms, and SEM and catalysis tests. Catalysis tests show that the very dispersive structure of the Pd-MCM-41 promotes the generation of fairly active catalysts for Suzuki cross-coupling of aryl chlorides and phenyl boronic acid under specific conditions, where the leaching of redox-active species has been minimized (less than 2 ppm).
11 citations
01 Jan 2010
TL;DR: The nonlinear Schrodinger of repulsive type for timelike curves and nonlinear heat system were derived in a general intrinsic geometric setting including a normal congruence in 3-dimensional Minkowski space.
Abstract: The nonlinear Schrodinger of repulsive type for timelike curves and nonlinear heat system are derived in a general intrinsic geometric setting including a normal congruence in 3-dimensional Minkowski space. Mathematics Subject Classification: 53B99
9 citations
01 Jan 2010
TL;DR: In this paper, the authors derived the intrinsic equations for a relaxed elastic line on a light-like surface in the 3-dimensional semi-Euclidean space and derived the formula square curvature for a non-unit velocity null curve in E 3.
Abstract: H.K. Nickerson and G. S Manning [1] derived the intrinsic equations for a relaxed elastic line on an oriented surface in E 3 . Considerable works were done on physical and geometric use of null curves in the literature ( [2]-[9] ). In this work, we give the analogue of the Frenet -Serret formulas on the lightlike surface and we derive the formula square curvature for a non-unit velocity null curve in E 3 . We obtain the intrinsic equations for a relaxed elastic line on a lightlike surface in the 3-dimensional semi-Euclidean space
1 citations