The structural, electronic and vibrational properties of LiOH and NaOH: an ab initio study

Autor:	Klaus Doll, Mohammadou Mérawa, Roberto Dovesi, Pierre Labéguerie, Piero Ugliengo
Rok vydání:	2004
Předmět:	Crystallography Hydrogen bond Chemistry Group (periodic table) Ab initio General Physics and Astronomy Physical chemistry Physical and Theoretical Chemistry
Zdroj:	Chemical Physics Letters. 387:453-459
ISSN:	0009-2614
DOI:	10.1016/j.cplett.2004.01.123
Popis:	The structural equilibrium parameters, the formation and hydration energies, and the O–H vibrational frequencies of LiOH and NaOH have been investigated at the ab initio level by using the periodic C rystal package. Four different methods have been adopted for comparison. The computed structural parameters are in good agreement with experiment. Computational results are all in excellent agreement with experiment, except for the heat of hydration of LiOH, which was found to be overestimated with respect to experiment. The OH group in the two cases does not present any hydrogen bond type interaction. Among the four methods, B3LYP gives the best results for all the features considered, in particular for the OH(D) vibrational data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5bbf56ae90df2354d62c76ce0cd584a https://doi.org/10.1016/j.cplett.2004.01.123 Zobrazit plný text záznamu Full Text from ScienceDirect