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Contreras, Rubén Horacio

139

Organic Magnetic Resonance

8

"The effects of substituents on the 5J long‐range spin‐spin coupling constants in substituted benzaldehydes" (1979) Contreras, R.H.; de Kowalewski, D.G.; Osella, A. Organic Magnetic Resonance. 12(9):542-543

"Additive of substituent effects on the chemical shift of the formyl proton in disubstituted benzaldehydes" (1980) Castañeda, H.O.; Contreras, R.H.; de Kowalewski, D.G. Organic Magnetic Resonance. 13(4):308-309

"Influence of the INDO parameterization on the indirect spin–spin coupling constants as calculated by the FPT INDO method" (1980) Contreras, R.H.; Engelmann, A.R.; Scuseria, G.E.; Facelli, J.C. Organic Magnetic Resonance. 13(2):137-142

"Transmission mechanisms of inter‐proton long‐range couplings in substituted anisoles" (1981) de Kowalewski, D.G.;Contreras, R.H.;Engelmann, A.R. (...)Durán, J.C. Organic Magnetic Resonance. 17(3):199-203

"A proton NMR analysis of the OCH3 group conformation in 2‐methoxypyridines" (1982) Contreras, R.H.; Facelli, J.C.; de Kowalewski, D.G. Organic Magnetic Resonance. 20(1):40-41

"The use of partially restricted molecular orbitals to investigate transmission mechanisms of spin–spin coupling constants. III—an INDO study of long‐range FH couplings in fluorinated derivatives of toluene" (1982) Facelli, J.C.; Giribet, C.G.; Contreras, R.H. Organic Magnetic Resonance. 19(3):138-143

"Theoretical additivity in multipath 13C, 1H coupling constants" (1984) Contreras, R.H.; Scuseria, G.E. Organic Magnetic Resonance. 22(6):411-414

"A long‐lived molecular association between acetone and 2‐methoxy‐5‐aminopyridine" (1984) Ortiz, F.S.; de Kowalewski, D.G.; Contreras, R.H.; Facelli, J.C. Organic Magnetic Resonance. 22(4):245-249

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