Güncel Gönderiler: Makale Koleksiyonu
Toplam kayıt 1058, listelenen: 121-140
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FT-IR Spectroscopic Study on Some Hofmann-TdType Complexes: Ni(4-Phenylpyridine)2M(CN)4(M = Cd or Hg)
(2005)New Hofmann- Tdtype complexes in the form of Ni(4-Phenylpyridine)2M(CN)4(M = Cd or Hg) were prepared in powder form and their infrared spectra are reported in the region of 4000200 cm-1. From the spectral findings, these ... -
Some DC and AC Properties of Copper-Loaded Polypropylene Films
(1987)Thin film Cu-polypropylene-Cu sandwich structures are prepared by thermal vacuum deposition of these materials onto glass substrates. Polypropylene in some of the samples is also loaded with Cu of varying amount. ... -
Ion-selective imprinted beads for aluminum removal from aqueous solutions
(American Chemical Society, 2006)The aim of this study is to prepare ion-imprinted polymers that can be used for the selective removal of aluminum ions [Al3+] from aqueous solutions. N-Methacryloyl-L-glutamic acid (MAGA) was chosen as the complexing ... -
Heavy metal ion adsorption properties of methacrylamidocysteine-containing porous poly(hydroxyethyl methacrylate) chelating beads
(Multi Science Publ Co LTD, 2002)Details of the adsorption performance of poly(2-hydroxyethylmethacrylate-methacrylamidocysteine) [p(HEMA-MAC)] beads towards the removal of heavy metal ions from aqueous solution were studied. The metal-complexing ligand ... -
Adsorption of Ni2+ from aqueous solutions by novel polyethyleneimine-attached poly(p-chloromethylstyrene) beads
(John Wiley & Sons Inc, 2002)In this study Ni2+ adsorption properties of polyethyleneimine (PEI)-attached poly(p-chloromethylstyrene) (PCMS) beads were investigated. Spherical beads with an average size of 186 gm were obtained by the suspension ... -
Synthesis of cholesterol imprinted polymeric particles
(Elsevier Science BV, 2007)The aim of this study is to prepare cholesterol-imprinted polymeric particles. N-Methacryloyl-(L)-tyrosinemethylester (MAT) was chosen as the complexing monomer. In the first step, functional monomer MAT was synthesized ... -
Novel methacryloylamidophenylalanine functionalized porous chelating beads for adsorption of heavy metal ions
(John Wiley & Sons Inc, 2003)The purpose of this study was to investigate in detail the adsorption performance of poly(2-hydroxyethylmethacrylate-methacryloylamidophenylalanine) [p(HEMA-MAPA)] beads. The metal-complexing comonomer MAPA was synthesized ... -
Removal of aluminium by Alizarin Yellow-attached magnetic poly(2-hydroxyethyl methacrylate) beads
(Elsevier Science BV, 2003)Since the discovery of the implication of aluminium in dialysis encephalopathy, much progress has been made in the preparation of dialysis water from which the metal is now virtually excluded. In this study, Alizarin ... -
One-bond and long-range coupling constants of substituted 2-cyanopyridines. GIAO/DFT calculations of proton and carbon chemical shifts and coupling constants
(Elsevier Science BV, 2006)The magnitude of one bond and long-range coupling constants ((n)J(HH) and (n)J(CH)) in isomeric cyanopyridines-(1, 2, 3), methyl-(4, 5, 6, 7), 3-ethyl-(8), chloro-(9), 3-bromo-(10), acetyl-(11, 12), 5-ethoxycarbonyl-(13) ... -
gNMR simulated H-1 and proton-coupled C-13 NMR spectra of substituted 3-nitropyridines. GIAO/DFT calculated values of proton and carbon chemical shifts and coupling constants
(Elsevier Science BV, 2006)The magnitude of one bond and long-range coupling constants in 3-nitropyridine 1 and its derivatives 2-16 were determined from the proton-coupled C-13 NMR spectra in CDCl3. The GIAO/DFT (Density Functional Theory/Gauge ... -
Selective removal of bilirubin from human plasma with bilirubin-imprinted particles
(American Chemical Society, 2007)The objective of this study is to prepare bilirubin-imprinted polymeric particles for the selective removal of bilirubin from hyperbilirubinemic human plasma. N-methacryloyl-(L)-tyrosine methylester (MAT) was chosen as the ... -
Thioamidoalkylation of 1,3-dicarbonyl compounds, enol silyl ethers, and enamines
(Georg Thieme Verlag Kg, 2007)Novel syntheses of beta-thioamido ketones via thioamidoalkylations of malonates, beta-keto esters, beta-diketones, enol silyl ethers, and enamines with N-(alpha-thioamidoalkyl)benzotriazoles are described. -
Molecular imprinted particles for lysozyme purification
(Elsevier Science BV, 2007)Molecular recognition-based separation techniques have received much attention in chemistry and biology because of their high selectivity for target molecules. The aim of this study is to prepare lysozyme-imprinted polymers ... -
Immunoglobulin G depletion from human serum with metal-chelated beads under magnetic field
(Elsevier Science BV, 2007)Magnetic poly(ethylene glycol dimethacrylate-N-methacryloyl-(L)-histidine methyl ester) [mag-poly(EGDMA-MAH) beads, 50-100 mu m in diameter, were produced by suspension polymerization for affinity depletion of immunoglobulin ... -
Porous poly(hydroxyethyl methacrylate) based monolith as a new adsorbent for affinity chromatography
(Elsevier Science BV, 2005)A new approach was developed to obtain an efficient and cost effective purification of IgG from human plasma. Porous monoliths were obtained by the bulk polymerization of 2-hydroxyethyl methacrylate (HEMA) and N-methacry ... -
FTIR spectroscopic and theoretical study of the photochemistry of matrix-isolated coumarin
(Wiley, 2007)The infrared spectrum of monomeric unsubstituted coumarin (C9H6O2; 2H-1-benzopyran-2-one), isolated in solid argon at 10 K is presented and assigned. The UV-induced (lambda > 200 nm) unimolecular photochemistry of the ... -
Novel fused D-A dyad and A-D-A triad incorporating tetrathiafulvalene and p-benzoquinone
(American Chemical Society, 2004)Novel fused donor-acceptor dyad (TTF-Q or D-A) and acceptor-donor-acceptor triad (Q-TTF-Q or A-D-A) incorporating the donor tetrathiafulvalene (TTF) and the acceptor p-benzoquinone (Q) have been synthesized. The solution ... -
NMR spectra, GIA and charge density calculations of five-membered aromatic heterocycles
(Wiley-Blackwell, 2007)The B3LYP/6-31+G(d) molecular geometry optimized structures of 17 five-membered heterocycles were employed together with the gauge including atomic orbitals (GIAO) density functional theory (DFT) method at the B3LYP/6-31+G(d,p), ... -
An ab initio study on protonation of some substituted thiazole derivatives
(Elsevier Science BV, 2005)The preferred tautomeric forms of some 2-oxothiazole derivatives were predicted using acidity constants calculated by experimental and ab initio methods. Thiazole derivatives were subject to geometry optimization at two ... -
A theoretical study of substituent effects on tautomerism of 2-hydroxybenzimidazoles
(Springer-Verlag, 2003)The geometries, relative stabilities of some 4(7) and 5(6) substituted 2-hydroxybenzimidazole derivatives were calculated with full geometry optimization using AM1 and PM3 in aqueous phase. With the exception of molecules ...
