Yazar "Kuş, Nihal" için listeleme
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Biologically relevant molecules studied in low temperature inert matrices
Fausto, R.; Kuş, Nihal (Springer Netherlands, 2014)Matrix isolation is a technique where gaseous atoms and molecules are trapped in an environment of solidified inert gases at temperatures close to absolute zero. The method was originally used to study free radicals and ... -
Conformers of beta-aminoisobutyric acid probed by jet-cooled microwave and matrix isolation infrared spectroscopic techniques
Kuş, Nihal; Sharma, A.; Pena, I.; Bermudez, M. C.; Cabezas, C.; Alonso, J. L.; Fausto, R. (Amer Inst Physics, 2013)beta-aminoisobutyric acid (BAIBA) has been studied in isolation conditions: in the gas phase and trapped into a cryogenic N-2 matrix. A solid sample of the compound was vaporized by laser ablation and investigated through ... -
Crystal Structure, Matrix-Isolation FTIR, and UV-Induced Conformational Isomerization of 3-Quinolinecarboxaldehyde
Kuş, Nihal; Henriques, Marta Sofia; Paixao, Jose Antonio; Lapinski, Leszek; Fausto, Rui (American Chemical Society, 2014)The crystal structure of 3-quinolinecarboxaldehyde (3QC) has been solved, and the compound has been shown to crystallize in the space group P2(1)/c (monoclinic) with a = 6.306(4), b = 18.551(11), c = 6.999(4) angstrom, ... -
Effects of the matrix and intramolecular interactions on the stability of the higher-energy conformers of 2-fluorobenzoic acid
Kuş, Nihal; Fausto, Rui (Amer Inst Physics, 2017)DFT(B3LYP)/6-311++ G(d, p) calculations on 2-fluorobenzoic acid (2FBA) showthat the molecule has four conformers: two lowenergy conformers (forms I and II) with the carboxylic acid group assuming the cis configuration (O ... -
Experimental Evidence of Long-Range Intramolecular Vibrational Energy Redistribution through Eight Covalent Bonds: NIR Irradiation Induced Conformational Transformation of E-Glutaconic Acid
Kovacs, Benjamin; Kuş, Nihal; Tarczay, Gyorgy; Fausto, Rui (American Chemical Society, 2017)Long-range intramolecular-vibrational energy redistribution (IVR) driven conformational changes were investigated in a matrix-isolated open-chain, asymmetrical dicarboxylic acid, E-glutaconic acid. Although the analysis ... -
First observation of methane photochemical generation from an N,N-dimethylamino-substituted arene: the case of 4-(N,N-dimethylamino)benzaldehyde (DMABA)
Kuş, Nihal; Sharma, Archna; Fausto, Rui (Pergamon-Elsevier Science LTD, 2016)The first observation of methane photochemical production from an N,N-dimethylamino-substituted arene (DMABA: 4-(N,N-dimethylamino)benzaldehyde) is described. UV irradiation (lambda>298 nm) of DMABA isolated in a solid low ... -
FTIR investigation of the O-H center dot center dot center dot Xe interaction in simple carboxylic acids in solid xenon
Ildız, Gülce Ogruc; Nunes, Claudio M.; Kuş, Nihal; Fausto, Rui (Amer Inst Physics, 2012)The O-H stretching region of the infrared spectra of a series of carboxylic acids in Xe matrices was investigated as a function of temperature. Upon increasing the temperature, the vO-H band site-components undergo reversible ... -
FTIR spectroscopic and theoretical study of the photochemistry of matrix-isolated coumarin
Kuş, Nihal; Breda, Susana; Reva, Igor; Tasal, Erol; Öğretir, Cemil; Fausto, Rui (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 ... -
Hofmann-diam-tipi klatratların infrared spektroskopisinde incelenmesi : M(1,7-diaminoheptan)Ni(CN)4.G (M=Ni veya Cd; G=bifenil, naftalin, antrasen, fenantren)
Kuş, Nihal (Anadolu Üniversitesi, 1998)Bu çalışmada M(dahpn) Ni(CN)4.nG (M=Cd, Ni; G=bifenil, naftalin, antrasen, fenantren) formülü ile verilen HofmannÊdiamÊtipi klatratlar kimyasal yollardan elde edildi. FTÊIR spektrometresi ile 4000Ê400cm spektroskopik ... -
In situ direct photoproduction of ketenes from substituted coumarins isolated in solid argon: The case of N-(2-oxo-2H-chromen-3-yl)acetamide
Kuş, Nihal; Breda, Susana; Fausto, Rui (Elsevier Science BV, 2009)In this study, the infrared spectrum of N-(2-oxo-2H-chromen-3-yl)acetamide (3-acetamidocoumarin; 3AC) isolated in solid argon, at 10 K, was obtained and assigned. In consonance with the relative energies of the three ... -
In situ photoproduction of dichlorodibenzo-p-dioxin from non-ionic triclosan isolated in solid argon
Kuş, Nihal; Reva, Igor; Bayarı, Sevgi; Fausto, Rui (Elsevier Science BV, 2012)The infrared spectrum of triclosan [or 5-chloro-2-(2,4-dichlorophenoxy)phenol] isolated in a low temperature (similar to 15 K) argon matrix has been recorded and assigned with help of DFT claculations undertaken with the ... -
Infrared Spectrum and UV-Induced Photochemistry of Matrix-Isolated 5-Hydroxyquinoline
Kuş, Nihal; Sagdinc, Seda; Fausto, Rui (American Chemical Society, 2015)The Mixture, infrared spectrum, arid.photo-chemistry of 5-hydroxyquitoline (5HQ) were studied by matrix isolation infrared spectroscopy, complemented by theoretical calculations performed, at the DFT(B3LYP)/6-311++G(d,p) ... -
Low temperature FTIR, Raman, NMR spectroscopic and theoretical study of hydroxyethylammonium picrate
Sudharsana, N.; Sharma, A.; Kuş, Nihal; Fausto, Rui; Luisa Ramos, M.; Krishnakumar, V.; Nagalakshmi, R. (Elsevier Science BV, 2016)A combined experimental (infrared, Raman and NMR) and theoretical quantum chemical study is performed on the charge-transfer complex hydroxyethylammonium picrate (HEAP). The infrared (IR) spectra for HEAP were recorded at ... -
Matrix isolation infrared spectroscopic study of 4-Pyridinecarboxaldehyde and of its UV-induced photochemistry
Cluyts, Liesel; Sharma, Archna; Kuş, Nihal; Schoone, Kristien; Fausto, Rui (Pergamon-Elsevier Science LTD, 2017)The structure, infrared spectrum, barrier to internal rotation, and photochemistry of 4-pyridinecarboxaldehyde (4PCA) were studied by low-temperature (10 K) matrix isolation infrared spectroscopy and quantum chemical ... -
Methylparaben Isolated in Solid Argon: Structural Characterization and UV-Induced Conversion into Methylparaben Radical and Isomeric Ketenes
Kuş, Nihal; Bayarı, Sevgi Haman; Fausto, Rui (American Chemical Society, 2013)Methylparaben (methyl p-hydroxybenzoic acid; MP) is a widely used antimicrobial preservative, being the most frequently used antimicrobial preservative in cosmetics. The generalized use of MP has become controversial, with ... -
Molecular spectroscopy and molecular structure - Selected communications presented at the 1st International Turkish Congress on Molecular Spectroscopy (TURCMOS 2013) Preface
Durig, James R.; Fausto, Rui; Ünsalan, Ozan; Bayarı, Sevgi; Kuş, Nihal; Ildız, Gülce O. (Pergamon-Elsevier Science LTD, 2016)… -
Near-infrared and ultraviolet induced isomerization of crotonic acid in N-2 and Xe cryomatrices: First observation of two high-energy trans C-O conformers and mechanistic insights
Kuş, Nihal; Fausto, Rui (Amer Inst Physics, 2014)E-crotonic acid was isolated in cryogenic solid N-2 and xenon matrices, and subjected to Laser ultraviolet (UV) and near-infrared (NIR) irradiations. In the deposited matrices, the two low-energy cis C-O E-cc and E-ct ... -
Photochemistry of six- and five-membered-ring alpha,beta-unsaturated lactones in cryogenic matrices
Fausto, Rui; Breda, Susana; Kuş, Nihal (Wiley, 2008)The photochemistry of representative six and five-membered alpha,beta-unsaturated lactones [alpha-pyrone and some of its derivatives, including coumarin and 3-acetamidocoumarin, 2(SH)-furanone] isolated in cryogenic inert ... -
Photoisomerization and Photochemistry of Matrix-Isolated 3-Furaldehyde
Kuş, Nihal; Reva, Igor; Fausto, Rui (American Chemical Society, 2010)3-Furaldehyde (3FA) was isolated in an argon matrix at 12 K and studied using FTIR spectroscopy and quantum chemistry The molecule has two conformers with trans and cis orientation of the O=C-C=C dihedral angle At the ... -
Photorotamerization of matrix-isolated acrylic acid revisited
Kuş, Nihal; Ai, Yue-Jie; Fang, Wei-Hai; Fausto, Rui (Amer Inst Physics, 2011)In this study, the conformational preferences and photochemistry of acrylic acid (AA, CH(2)=CHCOOH) monomer isolated in cryogenic argon and krypton matrices were interpreted, based on results of quantum chemical calculations. ...
