RT info:eu-repo/semantics/article T1 Molecular structure of salicylic acid and its hydrates: A rotational spectroscopy study A1 Macario Farto, Alberto A1 López Alonso, Juan Carlos A1 Blanco Rodríguez, Susana K1 Molecular structure K1 Moléculas - Estructura K1 Salicylic acid K1 Salicílico, Acido K1 Molecular spectroscopy K1 Spectroscopy K1 Espectroscopia de rotación K1 Molecular rotation K1 Espectroscopia de rotación K1 Water chemistry K1 Water K1 Agua - Análisis K1 Biomolecules K1 Biomoléculas K1 2210 Química Física K1 2210.20 Espectroscopia Molecular K1 2209.21 Espectroscopia K1 2204.05 Gases AB We present a study of salicylic acid and its hydrates, with up to four water molecules, done by employing chirped-pulse Fourier transform microwave spectroscopy. We employed the spectral data set of the parent, 13C, and 2H isotopologues to determine the molecular structure and characterize the intra- and intermolecular interactions of salicylic acid and its monohydrate. Complementary theoretical calculations were done to support the analysis of the experimental results. For the monomer, we analyzed structural properties, such as the angular-group-induced bond alternation (AGIBA) effect. In the microsolvates, we analyzed their main structural features dominated by the interaction of water with the carboxylic acid group. This work contributes to seeding information on how water molecules accumulate around this group. Moreover, we discussed the role of cooperative effects further stabilizing the observed inter- and intramolecular hydrogen bond interactions. PB MDPI SN 1422-0067 YR 2024 FD 2024 LK https://uvadoc.uva.es/handle/10324/67672 UL https://uvadoc.uva.es/handle/10324/67672 LA eng NO International Journal of Molecular Sciences, 2024, Vol. 25, Nº. 7, 4074 NO Producción Científica DS UVaDOC RD 17-jul-2024