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Concepción López
Concepción López
Profesora de Química Orgánica (UNED)
Dirección de correo verificada de ccia.uned.es
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The use of NMR spectroscopy to study tautomerism
RM Claramunt, C López, MD Santa María, D Sanz, J Elguero
Progress in Nuclear Magnetic Resonance Spectroscopy 49 (3), 169-206, 2006
2312006
Substituent effects on the 15N NMR Parameters of Azoles
R CLARAMUNT, D Sanz, C López, JA Jiménez, J ELGUERO, ...
Magnetic resonance in chemistry 35 (1), 35-75, 1997
1291997
A 13C NMR spectroscopy study of the structure of NH pyrazoles and indazoles
C Lopez, RM Claramunt, S Trofimenko, J Elguero
Canadian journal of chemistry 71 (5), 678-684, 1993
1001993
Polymorphism vs. Desmotropy: The Cases of 3‐Phenyl‐and 5‐Phenyl‐1H‐pyrazoles and 3‐Phenyl‐1H‐indazole
M Angeles García, C López, RM Claramunt, A Kenz, M Pierrot, J Elguero
Helvetica chimica acta 85 (9), 2763-2776, 2002
882002
The tautomerism of Omeprazole in solution: a 1H and 13C NMR study
RM Claramunt, C López, I Alkorta, J Elguero, R Yang, S Schulman
Magnetic Resonance in Chemistry 42 (8), 712-714, 2004
772004
A theoretical and experimental study of the intrinsic basicities of methyldiazoles
J Catalán, JLG De Paz, M Yanez, RM Claramunt, C López, J Elguero, ...
Journal of the American Chemical Society 112 (4), 1303-1312, 1990
671990
Structure of bis-, tris-and tetrakispyrazolylborates in the solid state (sodium and potassium salts of tetrakispyrazolylborate by X-ray crystallography) and in solution (1 H …
C Lopez, RM Claramunt, D Sanz, CF Foces, FH Cano, R Faure, E Cayon, ...
Inorganica chimica acta 176 (2), 195-204, 1990
661990
Tris (pyrazol-1-yl) methane-rhodium (I) and-iridium (I) complexes; cyrstal structure of [Rh (COD)(tpzm)][RhCl< sub> 2</sub>(COD)]· 3CHCl< sub> 3</sub>
MA Esteruelas, LA Oro, MC Apreda, C Foces-Foces, FH Cano, ...
Journal of organometallic chemistry 344 (1), 93-108, 1988
651988
The structure of halogeno-1, 2, 4-triazoles in the solid state and in solution
RM Claramunt, C López, MA García, MD Otero, MR Torres, E Pinilla, ...
New Journal of Chemistry 25 (8), 1061-1068, 2001
642001
Complete energy profile of a chiral propeller compound: Tris-(2′-methylbenzimidazol-1′-yl) Methane (TMBM). Chromatographic resolution on triacetyl cellulose, x-ray structures …
C Foces-Foces, F Hernández Cano, M Martínez-Ripoll, R Faure, ...
Tetrahedron: Asymmetry 1 (2), 65-86, 1990
611990
Fluorinated indazoles as novel selective inhibitors of nitric oxide synthase (NOS): Synthesis and biological evaluation
RM Claramunt, C López, C Pérez-Medina, M Pérez-Torralba, J Elguero, ...
Bioorganic & medicinal chemistry 17 (17), 6180-6187, 2009
572009
Symmetrization of cationic hydrogen bridges of protonated sponges induced by solvent and counteranion interactions as revealed by NMR spectroscopy
M Pietrzak, JP Wehling, S Kong, PM Tolstoy, IG Shenderovich, C López, ...
Chemistry-A European Journal 16 (5), 1679-1690, 2010
562010
13C detected scalar nitrogen-nitrogen couplings across the intramolecular symmetric NHN hydrogen bond of proton sponge
M Pietrzak, J Wehling, HH Limbach, NS Golubev, C López, RM Claramunt, ...
Journal of the American Chemical Society 123 (18), 4338-4339, 2001
532001
Proton transfer in solid heterocycles: An X‐ray and CPMAS NMR study
J Elguero, FH Cano, C Foces‐Foces, AL Llamas‐Saiz, HH Limbach, ...
Journal of heterocyclic chemistry 31 (3), 695-700, 1994
491994
Synthesis and structural study of tetrahydroindazolones
RM Claramunt, C López, C Pérez-Medina, E Pinilla, MR Torres, J Elguero
Tetrahedron 62 (50), 11704-11713, 2006
452006
Protonation and phase effects on the NMR chemical shifts of imidazoles and pyrazoles: experimental results and GIAO calculations
RM Claramunt, C López, MÁ García, GS Denisov, I Alkorta, J Elguero
New Journal of Chemistry 27 (4), 734-742, 2003
452003
Iminophosphorane-substituted proton sponges. Part 1. X-ray molecular structures of 1, 8-diaminonaphthalene and 1-amino-8-triphenylphosphoranylideneaminonaphthalene
AL Llamas-Saiz, C Foces-Foces, P Molina, M Alajarin, A Vidal, ...
Journal of the Chemical Society, Perkin Transactions 2, 1025-1031, 1991
411991
The structure of fluorinated indazoles: the effect of the replacement of a H by a F atom on the supramolecular structure of NH-indazoles
J Teichert, P Oulié, K Jacob, L Vendier, M Etienne, RM Claramunt, ...
New Journal of Chemistry 31 (6), 936-946, 2007
402007
An 1 H and 13 C NMR spectroscopic study of the structure of potassium and thallium salts of tris-and tetrakis-(pyrazol-1-yl) borates in solution. Some 13 C 11 B and 13 C 205 …
C López, D Sanz, RM Claramunt, S Trofimenko, J Elguero
Journal of organometallic chemistry 503 (2), 265-276, 1995
391995
Diazole-based powdered cocrystal featuring a helical hydrogen-bonded network: Structure determination from PXRD, solid-state NMR and computer modeling
M Sardo, SM Santos, AA Babaryk, C López, I Alkorta, J Elguero, ...
Solid state nuclear magnetic resonance, 2014
382014
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