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Título: | A theoretical structural analysis of the factors that affect 1JNH, 1hJNH and2hJ NN in N-H⋯N hydrogen-bonded complexes |
Autor: | Alkorta, Ibon CSIC ORCID ; Blanco, Fernando CSIC; Elguero, José CSIC ORCID | Fecha de publicación: | 2009 | Editor: | John Wiley & Sons | Citación: | Magnetic Resonance in Chemistry 47: 249- 256 (2009) | Resumen: | Calculations of 1JNH, 1hJNH and 2hJNN spin-spin coupling constants of 27 complexes presenting N-H⋯N hydrogen bonds have allowed to analyze these through hydrogen-bond coupling as a function of the hybridization of both nitrogen atoms and the charge (+1, 0, -1) of the complex. The main conclusions are that the hybridization of N atom of the hydrogen bond donor is much more important than that of the hydrogen bond acceptor. Positive and negative charges (cationic and anionic complexes) exert opposite effects while the effect of the transition states 'proton-in-the-middle' is considerable. Copyright © 2008 John Wiley & Sons, Ltd. | URI: | http://hdl.handle.net/10261/65532 | DOI: | 10.1002/mrc.2382 | Identificadores: | doi: 10.1002/mrc.2382 issn: 0749-1581 e-issn: 1097-458X |
Aparece en las colecciones: | (IQM) Artículos |
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