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PreviewIssue DateTitleAuthor(s)AdvisorType
2002Principal component analysis of carbon-13 substituent-induced chemical shifts of some unsaturated compoundsTasic, L; Rittner, R-Artigo de periódico
2002A H-1 NMR and molecular modelling investigation of diastereotopic methylene hydrogen atomsTormena, CF; Freitas, MP; Rittner, R; Abraham, RJ-Artigo de periódico
2002Halogenated six-membered rings: a theoretical approach for substituent effects in conformational analysisFreitas, MP; Tormena, CF; Oliveira, PR; Rittner, R-Artigo de periódico
2002Substituent effects on H-1 and C-13 NMR chemical shifts in alpha-monosubstituted ethyl acetates: principal component analysis and H-1 chemical shift calculationsTasic, L; Abraham, RJ; Rittner, R-Artigo de periódico
2002Substituent interactions in trans-2-substituted methoxycyclohexanes: an explanation to the conformational behaviour in a chemometric and theoretical viewFreitas, MP; Tormena, CF; Luizar, C; Ferreira, MMC; Rittner, R-Artigo de periódico
2002The alpha-substituent effect of alkyl groups in the C-13 NMR and IR data of some aliphatic nitrilesRittner, R; Tormena, CF; Carniero, PIB-Artigo de periódico
2002Ortho effects in the dissociation of ionized N-chlorophenyl- and N-bromophenyl-2-aminobenzamidines: intramolecular aromatic substitution with cyclization to protonated 2-(2-aminophenyl)-1H-benzimidazolesMendes, MA; Rittner, R; Eberlin, MN; Suwinski, J; Szczepankiewicz, W-Artigo de periódico
2002An NMR, IR and theoretical investigation of the methyl effect on conformational isomerism in 3-fluoro-3-methyl-2-butanone and 1-fluoro-3,3-dimethyl-2-butanoneTormena, CF; Rittner, R; Abraham, RJ-Artigo de periódico
2002Conformational and electronic interaction studies of 2-fluoro-substituted N,N-dimethylacetamidesOlivato, PR; Guerrero, SA; Yreijo, MH; Rittner, R; Tormena, CF-Artigo de periódico