Issue 11, 2017

Insights into acid dissociation of HCl and HBr with internal electric fields

Abstract

The electric field experienced by an acid molecule in the acid–water cluster depends on its local environment comprising of surrounding water molecules. A critical field of about 193 and 163 MV cm−1 is required for the dissociation of HCl and HBr, respectively, and is associated with the arrangement of water molecules around the acid. The critical field required for dissociation of isolated HCl and HBr is 510 and 462 MV cm−1, respectively. Hence the solvation of the proton and the halide anion by water molecules substantially lowers the critical electric field by about 300 MV cm−1, relative to vacuum.

Graphical abstract: Insights into acid dissociation of HCl and HBr with internal electric fields

Supplementary files

Article information

Article type
Communication
Submitted
28 dez 2016
Accepted
08 fev 2017
First published
08 fev 2017

Phys. Chem. Chem. Phys., 2017,19, 7461-7464

Insights into acid dissociation of HCl and HBr with internal electric fields

M. Boda and G. Naresh Patwari, Phys. Chem. Chem. Phys., 2017, 19, 7461 DOI: 10.1039/C6CP08870H

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