Atoms in molecules investigation of the pK(HB) basicity scale: electrostatic and covalent effects in hydrogen bonding

Lamarche, Olivier J. and Platts, James Alexis ORCID: https://orcid.org/0000-0002-1008-6595 2003. Atoms in molecules investigation of the pK(HB) basicity scale: electrostatic and covalent effects in hydrogen bonding. Chemical Physics Letters 367 (1-2) , pp. 123-128. 10.1016/S0009-2614(02)01581-6

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Abstract

DFT calculations on over 60 hydrogen bond bases and their complexes with hydrogen fluoride have been performed. By using properties computed at the B3LYP/6-31+G(d,p) level of theory as predictors of pKHB multivariate analysis, the hydrogen bond scale can be regarded as a composite descriptor made of an electrostatic term (by using the minimum value of the electrostatic potential on the 0.001 a.u. isodensity contour surface of the isolated base) and of an overlap term (by using the bond order or the energy density calculated at the bond critical point of the most stable 1:1 HF complex).

Item Type:	Article
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Elsevier
ISSN:	0009-2614
Last Modified:	18 Oct 2022 13:09
URI:	https://orca.cardiff.ac.uk/id/eprint/12518

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