A neutron diffraction study on the structure of Cl- solutions in hydrogen-bonded molecular solvents

S. Erol Okan, P. S. Salmon

Research output: Contribution to journalArticle

Abstract

The method of isotopic substitution in time-of-flight neutron diffraction is applied to measure the coordination environment of Cl- in a 0.999(2) molal solution of NaCl in fully deuterated glycerol. It is shown that the glycerol molecules act as monodentate ligands to give a Cl(glycerol) complex that comprises Cl-...D-O hydrogen bonds, which are approximately linear and of length 2.17(3) AA. The results are compared with those obtained for the solvation of Cl- in solutions of its salts in water, methanol and ethylene glycol (EG). A reduction from approximately six (water) to four (methanol and EG) to three (glycerol) is found for the Cl-solvation number as the solvent is changed and, for all four solvents, the Cl -...D-O hydrogen bond is typically linear.

Original languageEnglish
Article number009
Pages (from-to)3839-3848
Number of pages10
JournalJournal of Physics: Condensed Matter
Volume6
Issue number21
DOIs
Publication statusPublished - 1 Dec 1994

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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