R
Rosa Ma Claramunt
Researcher at National University of Distance Education
Publications - 27
Citations - 469
Rosa Ma Claramunt is an academic researcher from National University of Distance Education. The author has contributed to research in topics: Nuclear magnetic resonance spectroscopy & Chemical shift. The author has an hindex of 12, co-authored 27 publications receiving 459 citations.
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Journal ArticleDOI
A 13C NMR spectroscopy study of the structure of N-H pyrazoles and indazoles
TL;DR: In this paper, the 13C chemical shifts and some 1H−13C coupling constants of 23 pyrazoles and indazoles were reported and discussed, and the spectra were recorded in CDCl3 and in DMSO-d6 solutions.
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Rhodium(I) complexes with bis(pyrazolyl)methane ligands. Crystal structure of [Rh(COD)(CH2(Pz)2)]ClO4· C2H4Cl2
TL;DR: In this article, the synthesis and properties of neutral and cationic complexes of general formulae [{RhCl(diolefin)}2(CH2(pz)2)], [RhCl2(CO)2 (CH2pz)/PPh3)]ClO4 are described.
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Complete energy profile of a chiral propeller compound: Tris-(2′-methylbenzimidazol-1′-yl) Methane (TMBM). Chromatographic resolution on triacetyl cellulose, x-ray structures of the racemic and one enantiomer, and dynamic NMR study
Concepción Foces-Foces,Felix H. Cano,Martín Martínez-Ripoll,Robert Faure,Christian Roussel,Rosa Ma Claramunt,Concepción López,Dionisia Sanz,José Elguero +8 more
TL;DR: In this article, the two most stable isomers (the three methyl groups “up”, i.e., on the same side of the methine proton, and two methyl groups "up" and the third one "down") were present in the solid state, thus allowing the determination of their molecular structure by x-ray crystallography.
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N-aminoazoles. Part 2. Basicity and protonation site of N-aminoazoles: an experimental (pKa, 13C and 15N NMR spectroscopy and crystallography) and theoretical study
Rosa Ma Claramunt,Dionisia Sanz,Javier Catalán,Fernando Fabero,Norman A. García,Concepción Foces-Foces,Antonio L. Llamas-Saiz,José Elguero +7 more
TL;DR: In this paper, the X-ray crystal structures of two polymorphic forms of N-aminobenzimidazolium picrate 12d have been determined, and the main differences between the forms are due to the twist of an ortho-nitro group of the picrate anion up to 53° leading to a different hydrogen bond network.
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The structure of N-aminoazoles: an experimental (X-ray and 15N NMR) and theoretical study
M. de la Concepcion Foces-Foces,Felix H. Cano,Rosa Ma Claramunt,Dionisia Sanz,Javier Catalán,Fernando Fabero,Alain Fruchier,José Elguero +7 more
TL;DR: In this paper, the nitrogen-15 chemical shifts of eleven N-aminoazoles have been determined for the first time by X-ray crystallography and the results are consistent with the available experimental evidence and provide a coherent picture of the conformation of the sp3 amino group.