Güncel Gönderiler: Kimya Bölümü
Toplam kayıt 209, listelenen: 141-160
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Bis(isonicotinamide-κN1)bis(4-methylbenzoato-κO) copper(II) dihydrate
(2010)In the centrosymmetric title compound, [Cu(C8H7O 2)2(C6H6N2O) 2]·2H2O, the CuII ion is located on a crystallographic inversion center. The asymmetric unit is completed by one 4-methylbenzoate anion, one isonicotinamide ... -
Synthesis, structural characterization and biological activity of novel cyclohexane-1,3-dione ligands and their metal complexes
(MDPI AG, 2015)Some new Zn(II) and Cu(II) complexes [Cu(L1)(OAc)2]·H2O, [Cu(L1)(NO3)H2O]·NO3·3.5H2O, [Zn(L1)(NO3)2]·4.5H2O, [Zn(L1)(OAc)2(H2O)2]·3H2O, [Cu2(L2)(OAc)4]·2H2O·2DMF, [Cu(L2)2]·2NO3·1.5DMF·H2O, [Zn(L2)2(NO3)2]·DMF and ... -
Fast method for synthesis of alkyl and aryl-N-methylnitrones
(MDPI AG, 2011)A simple, fast, efficient and eco-friendly procedure was developed for the synthesis of alkyl and aryl-N-methylnitrones. The corresponding nitrones of aromatic aldehydes, aliphatic aldehydes and alicyclic carbonyl compounds ... -
Synthesis, structural characterization and biological activities of metal(II) complexes with Schiff bases derived from 5-bromosalicylaldehyde: Ru(II) complexes transfer hydrogenation
(Elsevier B.V., 2019)In this study, two novel Schiff base ligands (L1 and L2) derived from condensation of methyl 2-amino-6-methyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate and methyl 2-amino-6-phenyl-4,5,6,7-tetrahydrobenzo[b]th ... -
Determination of biogenic amines at low μg L–1levels as acetylacetone derivatives by RP-HPLC with UV-visible detection in expired apple juice samples
(Slovensko Kemijsko Drustvo, 2018)An accurate and sensitive method for trace quantification of three biogenic amines in expired apple juice samples based on reversed-phase liquid chromatography (RP-HPLC) with UV-visible detection is described. Biogenic ... -
Bazı metal organik kafes yapılı bileşiklerin hidrojen depolama performanslarının incelenmesi
(2013)Hidrojenin bilinen depolama sistemlerinden farklı olarak depolama ortamlarında kimyasal olarak veya zayıf van der Waals etkileşimleriyle fiziksel olarak tutunabildiği bilinmektedir. Hidrojen, fiziksel adsorpsiyonla karbon ... -
A novel core-shell-based chromatographic method supported by ratio derivative spectrophotometry for the simultaneous determination of perindopril, indapamide, and amlodipine ternary mixtures
(TUBİTAK, 2018)In this work, ratio spectra of the frst derivative spectrophotometric and liquid chromatographic methods have been described for the frst time for the simultaneous determination of perindopril (PER), indapamide (IND), and ... -
Organic biomolecules bind to phosphate through borate linkages in aqueous solutions
(TÜBİTAK, 2014)Solutions of salicyclic, ascorbic, and citric acids were reacted with boric acid, followed by NaH2PO4. The products, triphosphateborate ester of salicylic acid (1), orthosphateborate ester of ascorbic acid (2), triphosphateborate ... -
Structural and thermal studies of non-metal cation pentaborate salts with cations derived from 1,5-diazobicyclo[4.3.0]non-5-ene, 1,8-diazobicyclo[5.4.0] undec-7-ene and 1,8-bis(dimethylamino)naphthalene
(Elsevier B.V., 2012)The reaction of the cyclic amines 1,5-diazobicyclo[4.3.0]non-5-ene (DBN), 1,8-diazobicyclo[5.4.0]undec-7-ene (DBU) and 1,8-bis(dimethylamino)naphthalene (PS) with B(OH)3 in a 1:5 ratio affords in high yields the non-metal ... -
Diphenic acid/nicotinamide and 1,10-phenanthroline complexes of CoII, CuII and ZnII. Synthesis and structural investigation
(Elsevier Ltd, 2016)The complexes of diphenic acid with CoII and CuII metals and diphenic acid/nicotinamide mixed ligand with CoII and ZnII metals were synthesized and characterized of structural properties by elemental analysis, FT-IR spectra, ... -
Fe(II)-Co(II) double salt incorporated magnetic hydrophobic microparticles for invertase adsorption
(Humana Press Inc., 2015)Invertase (β-fructofuranoside fructohydrolase, EC 3.2.1.26) is an enzyme widely used in the food industry. Its main function is the formation of glucose and fructose through hydrolysis of sucrose. For the separation and ... -
Simultaneous determination and validation of emtricitabine, rilpivirine and tenofovir from biological samples using LC and CE methods
(John Wiley and Sons Ltd, 2018)A combination of antiretroviral agents is frequently used in effective treatment of the human immunodeficiency virus infection. In this study, two different separation methods are presented for the simultaneous determination ... -
Spectroscopic and thermal properties of newly mixed azocalix[4]arene ester derivatives
(Elsevier B.V., 2014)The mono-, di-, tri-, and tetra-acryloyl esters of p-chloroazocalix[4]arene which include the first examples of mixed azo ester dyes were synthesized by reacting acryloyl chloride with sodium salts of p-chloroazocalix[4]arene ... -
Determination of pKa values of some sulfonamides by LC and LC-PDA methods in acetonitrile-water binary mixtures
(2010)As constantes de dissociação de sete sulfonamidas antibióticas, sulfadiazina, sulfatiazol, sulfamerazina, sulfametazina, sulfamonometoxina, sulfadoxina e sulfametoxazol, foram determinadas em diferentes misturas binárias ... -
Determination of protonation constants of some tetracycline antibiotics by potentiometry and LC methods in water and acetonitrile-water binary mixtures
(2009)Uma estimativa acurada das constantes de dissociação de antibióticos tetraciclina em misturas binárias acetonitrila-água é muito importante para muitas técnicas de separação, como cromatografia líquida e eletroforese capilar ... -
Determination of dissociation constants of some antifungal drugs by two different methods at 298 K
(2013)The dissociation constants of eight antifungal drugs (fenticonazole, isoconazole, itraconazole, ketoconazole, miconazole, ornidazole, tinidazole, tioconazole) have been determined in water and acetonitrile-water binary ... -
Preparation and characterization of polyvinyl alcohol based copolymers as wound dressing fibers
(Taylor and Francis Inc., 2015)Biocompatible polyvinyl alcohol/polyethylene glycol and polyvinyl alcohol/polypropylene glycol copolymer mats were prepared by electrospinning. The composite fiber mats were subjected to detailed physical analysis complemented ... -
Production of Magnetic Nano-bioconjugates via Ball Milling of Commercial Boron Powder with Biomolecules
(Wiley-VCH Verlag, 2016)Mechanochemical preparation and characterization of surface-functionalized magnetic boron nanoparticles for biomedical applications are presented. Alloying with the stainless steel ball milling material during mechanochemical ... -
Synthesis of pyrrolo-pyrrolo-pyrazines via the Pd/C-catalyzed cyclization of N-propargyl pyrrolinyl-pyrrole derivatives
(Elsevier Ltd, 2019)A novel and efficient synthesis of N-substituted dipyrrolo[1,2-a:2',1'-c]pyrazine derivatives has been developed. The synthetic strategy relies on the synthesisof 4',5'-dihydro-1H,3'H-2,2'-bipyrrole, followed by the reaction ... -
Synthesis of a bipyridine-derived achiral thiourea trifluoromethanesulfonic acid salt and its application as an additive in organocatalytic asymmetric reactions
(2013)The host-guest complex of a proline-thiourea bipyridine trifluoromethanesulfonic acid salt can catalyze organocatalytic asymmetric reactions such as aldol, Michael, and Mannich in polar protic medium with high stereoselectivities. ...
