Browsing by Author Contreras, RH

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PreviewIssue DateTitleAuthor(s)AdvisorType
2012Critical analysis of the through-space transmission of NMR J(FH) spin-spin coupling constantsContreras, RH; Ducati, LC; Tormena, CF-Artigo de periódico
2010Difference between (2)J(C2H3) and (2)J(C3H2) spin-spin couplings in heterocyclic five- and six-membered rings as a probe for studying sigma-ring currents: a quantum chemical analysistContreras, RH; dos Santos, FP; Ducati, LC; Tormena, CF-Artigo de periódico
2011F-19 chemical shifts, coupling constants and conformational preferences in monosubstituted perfluoroparacyclophanesGhiviriga, I; Zhang, LH; Martinez, H; Contreras, RH; Tormena, CF; Nodin, L; Dolbier, WR-Artigo de periódico
2007Lone-pair orientation effect of an alpha-oxygen atom on (1)J(CC) NMR spin-spin coupling constants in o-substituted phenols. Experimental and DFT studyTaurian, OE; Contreras, RH; De Kowalewski, DG; Perez, JE; Tormena, CF-Artigo de periódico
2008NMR spin-spin couplings involving nuclei in the neighborhood of a carbonyl group. (3)J(CH) couplings in alpha-substituted acetamidesPedersoli, S; dos Santos, FP; Rittner, R; Contreras, RH; Tormena, CF-Artigo de periódico
2009Qualitative Study of Substituent Effects on NMR N-15 and O-17 Chemical ShiftsContreras, RH; Llorente, T; Pagola, GI; Bustamante, MG; Pasqualini, EE; Melo, JI; Tormena, CF-Artigo de periódico
2011Effect of Electronic Interactions on NMR (1)J(CF) and (2)J(CF) Couplings in cis- and trans-4-t-Butyl-2-fluorocyclohexanones and Their Alcohol DerivativesAnizelli, PR; Favaro, DC; Contreras, RH; Tormena, CF-Artigo de periódico
2011Experimental, SOPPA(CCSD), and DFT Analysis of Substitutent Effects on NMR (1)J(CF) Coupling Constants in Fluorobenzene DerivativesVilcachagua, JD; Ducati, LC; Rittner, R; Contreras, RH; Tormena, CF-Artigo de periódico
2007Experimental and DFT studies on the transmission mechanisms of analogous NMR J(CH) and J(CC) couplings in 1-X- and 1-X-3-methylbicyclo[1.1.1]-pentanesContreras, RH; Esteban, AL; Diez, E; Lochert, IJ; Della, EW; Tormena, CF-Artigo de periódico
2007Experimental and theoretical investigation of NMR (2)J(HH) coupling constant on six-membered ring systems containing oxygen or sulfur atomsTormena, CF; Vilcachagua, JD; Karcher, V; Rittner, R; Contreras, RH-Artigo de periódico
2009Effect of Sulfur Oxidation on the Transmission Mechanism of (4)J(HH) NMR Coupling Constants in 1,3-DithianeGauze, GF; Basso, EA; Contreras, RH; Tormena, CF-Artigo de periódico
2004Anomeric effect on geminal and vicinal J(HH) NMR coupling constantsTormena, CF; Rittner, R; Contreras, RH; Peralta, JE-Artigo de periódico
2009Heavy Halogen Atom Effect on C-13 NMR Chemical Shifts in Monohalo Derivatives of Cyclohexane and Pyran. Experimental and Theoretical StudyNeto, AC; Ducati, LC; Rittner, R; Tormena, CF; Contreras, RH; Frenking, G-Artigo de periódico
2013The electronic origin of unusually large (n)J(FN) coupling constants in some fluoroximesFavaro, DC; Contreras, RH; Tormena, CF-Artigo de periódico
2008Stereochemical behavior of (1)J(CH) and (2)J(CH) NMR coupling constants in alpha-substituted acetamidesPedersoli, S; Tormena, CF; dos Santos, FP; Contreras, RH; Rittner, R-Artigo de periódico
2011Stereochemical Dependence of (3)J(CH) Coupling Constants in 2-Substituted 4-t-Butyl-cyclohexanone and Their Alcohol DerivativesFavaro, DC; Ducati, LC; dos Santos, FP; Contreras, RH; Tormena, CF-Artigo de periódico
2009Stereochemical dependence of NMR geminal spin-spin coupling constantsContreras, RH; Provasi, PF; dos Santos, FP; Tormena, CF-Artigo de periódico
2012Unexpected Geometrical Effects on Paramagnetic Spin-Orbit and Spin-Dipolar (2)J(FF) CouplingsDucati, LC; Contreras, RH; Tormena, CF-Artigo de periódico
2013Unusual Through-Space, TS, Pathway for the Transmission of J(FHf) Coupling: 2-Fluorobenzaldehyde Study CaseFavaro, DC; Contreras, RH; Tormena, CF-Artigo de periódico
2008Analysis of the Electronic Origin of the (1)J(CH) Spin-Spin Coupling Trend in 1-X-Cyclopropanes: Experimental and DFT StudyNeto, AC; dos Santos, FP; Contreras, RH; Rittner, R; Tormena, CF-Artigo de periódico