DOI: 10.1063/1.431756. Diffraction pattern and structure of aqueous hydrochloric acid solutions at 20 °C

Diffraction pattern and structure of aqueous hydrochloric acid solutions at 20 °C

10.1063/1.431756

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

Hydrochloric acid solutions have been studied at concentrations from pure water to saturation with both x rays (HCl/H2O) and thermal neutrons (DCl/D2O). Such an extensive study reduces greatly the nonuniqueness of interpretation usually associated with diffraction data from liquids. The structure of D2O molecules in liquid water is very similar to that found in the vapor phase, the OD distance of 0.955(5) Å being identical to the equilibrium distance in the vapor molecules. The existence of D3O+ ions with an OD distance of 1.017(5) Å in concentrated DCl is firmly established. The D3O+(H3O+) ions are hydrogen bonded to four water molecules with an H3O+⋅⋅⋅OH2 distance of 2.52(2) Å and a D3O+⋅⋅⋅D distance of 1.61(2) Å. The Cl− ions appear to be four-coordinated by oxygen atoms at a mean distance of 3.13(1) Å, but no pronounced Cl⋅⋅⋅D distances indicating a well-oriented hydration shell about Cl− could be identified.

Bibliography

Triolo, R., & Narten, A. H. (1975). Diffraction pattern and structure of aqueous hydrochloric acid solutions at 20âÂ°C. The Journal of Chemical Physics, 63(8), 3624â3631.

Authors 2

R. Triolo (first)
A. H. Narten (additional)

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Dates

Type	When
Created	22 years, 6 months ago (Feb. 27, 2003, 3:57 p.m.)
Deposited	1 year, 6 months ago (Feb. 9, 2024, 9:14 a.m.)
Indexed	1 month, 4 weeks ago (July 4, 2025, 9:03 a.m.)
Issued	49 years, 10 months ago (Oct. 15, 1975)
Published	49 years, 10 months ago (Oct. 15, 1975)
Published Print	49 years, 10 months ago (Oct. 15, 1975)

Funders 0

None

BibTeX

@article{Triolo_1975, title={Diffraction pattern and structure of aqueous hydrochloric acid solutions at 20 °C}, volume={63}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.431756}, DOI={10.1063/1.431756}, number={8}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Triolo, R. and Narten, A. H.}, year={1975}, month=oct, pages={3624–3631} }

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