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scopus(12)
A detailed experimental and theoretical study of two novel substituted trifluoromethylchromones. The influence of the bulky bromine atom on the crystal packing
ArticleAbstract: (Figure Presented) The new 3-methyl-2-trifluoromethylchromone (1 ) and 3-bromomethyl-2-trifluoromethPalabras claves:2-trifluoromethylchromones, Quantum chemical calculations, Single crystal x-ray diffraction, Spectroscopic propertiesAutores:Christian David Alcívar León, Echeverría G.A., Gustavo A. Echeverría, Jios J.L., Piro O.E., Ulic S.E.Fuentes:googlescopusThe role of halogen C-X1⋯X2-C contact on the preferred conformation of 2-perhalomethylchromones in solid state
ArticleAbstract: The solid state of 2-chlorodifluoromethyl-3-methylchromone (1) and 3-bromomethyl-2-chlorodifluorometPalabras claves:2-Chlorodifluoromethylchromones, Halogen-halogen contacts, Quantum chemical calculations, Single crystal x-ray diffraction, Spectroscopic propertiesAutores:Argüello G.A., Burgos Paci M.A., Christian David Alcívar León, Echeverría G.A., Gustavo A. Echeverría, Jios J.L., Piro O.E., Ulic S.E.Fuentes:googlescopusThe role of non-covalent interactions in some 2-trifluoromethylchromones in the solid state
ArticleAbstract: The intermolecular interactions in the solid state and the spectroscopic vibrational, electronic andPalabras claves:Autores:Christian David Alcívar León, Echeverría G.A., Gustavo A. Echeverría, Henao Castañeda I.C., Jios J.L., Pereañez J.A., Pérez H., Piro O.E., Ulic S.E.Fuentes:googlescopusSurvey of clenbuterol in bovine muscle and liver in Ecuador
ArticleAbstract: Clenbuterol is a steroid-type drug used in respiratory treatments in both humans and animals. HowevePalabras claves:Clenbuterol, Food contamination, food safety, ß-adrenergic receptors, ß-agonistAutores:Andrade P., Betancourt R., Dominique Enríquez, Gualpa F., Juan Eduardo Bravo-Vásquez, Luis A. Ramos-Guerrero, Luis Alejandro Ramos, Medina L., Michelle Guijarro, Montalvo García G., Moreno C., Ortega F., PATRICIA GARRIDO, Paul Vargas Jentzsch, Stolker L., Ulic S.E., Vaca I., Wania EspinozaFuentes:googlescopusSynthesis and conformational theoretical study of novel derivatives of 2-(trifluoromethyl)chromone: 3-cyanomethyl and 3-aminomethyl 2-(trifluoromethyl)chromones
OtherAbstract:Palabras claves:Autores:Christian David Alcívar León, Echeverría G.A., Gustavo A. Echeverría, Jios J.L., Piro O.E., Ulic S.E.Fuentes:googlescopusSynthesis and vibrational properties of trifluoromethyl trifluoromethanethiosulfonate and comparison with covalent sulfonates
ArticleAbstract: Trifluoromethyl trifluoromethanethiosulfonate, CF <inf>3</inf>SO <inf>2</inf>SCF <inf>3</inf> was chPalabras claves:Fourier-type expansion, Internal rotational barrier, Natural bond orbital analysis, Quantum chemical calculations, Vibrational spectroscopyAutores:Ben Altabef A., Defonsi Lestard M.E., Luis A. Ramos-Guerrero, Luis Alejandro Ramos, Tuttolomondo M.E., Ulic S.E.Fuentes:googlescopusSynthesis, Experimental and Theoretical Study of Azidochromones
ArticleAbstract: A series of 2-(haloalkyl)-3-azidomethyl and 6-azido chromones has been synthetized, characterized anPalabras claves:azidochromone, Hirshfeld surface analysis, Quantum chemical calculations, Spectroscopic properties, structural X-ray diffractionAutores:Christian David Alcívar León, Echeverría G.A., Ena G. Narváez-Ordoñez, Gustavo A. Echeverría, Jios J.L., Jorge Hebkp_redia-Moya, Kevin A. Pabón-Carcelén, Langer P., Luis A. Ramos-Guerrero, Pablo M. Bonilla-Valladares, Piro O.E., Romero Hugo, Trosky G. Yánez-Darquea, Ulic S.E., Zurita-Saltos D.A.Fuentes:googlescopusSynthesis, spectroscopic and structural properties of CF3SO 2OCCl3
ArticleAbstract: Trichloromethyl trifluoromethanesulphonate, CF<inf>3</inf>SO <inf>2</inf>OCCl<inf>3</inf>, was prepaPalabras claves:ab initio calculations, DFT calculations, Fourier-type expansion, Internal rotational barrier, Natural bond orbital analysis, Vibrational spectroscopyAutores:Ben Altabef A., Defonsi Lestard M.E., Luis A. Ramos-Guerrero, Luis Alejandro Ramos, Tuttolomondo M.E., Ulic S.E.Fuentes:googlescopusBis (trifluoromethyl) sulfone, CF 3 SO 2 CF 3: Synthesis, vibrational and conformational properties
OtherAbstract: Bis (trifluoromethyl) sulfone, CF3SO2CF3, was obtained as a byproduct in the synthesis of CF3SO2SCF3Palabras claves:Fourier-type expansion, Internal rotational barrier, Natural bond orbital analysis, Quantum chemical calculations, Vibrational spectroscopyAutores:Ben Altabef A., Defonsi Lestard M.E., Luis A. Ramos-Guerrero, Luis Alejandro Ramos, Tuttolomondo M.E., Ulic S.E.Fuentes:googlescopusDimers of perhaloacetyl cyanides: CClF2C(O)OC(CN) 2CClF2 and CF3C(O)OC(CN) 2CF 3. Preparation, properties, and spectroscopy
ArticleAbstract: The vapor of the new compound 1,1-dicyano-2-chloro-2,2-difluoroethyl chlorodifluoroacetate, CClF<infPalabras claves:Autores:Beckers H., Ge M.F., Luis A. Ramos-Guerrero, Luis Alejandro Ramos, Romano R.M., Tong S., Ulic S.E., Védova. C.O.D., Willner H.Fuentes:googlescopus