DOI: 10.1063/1.1669712. Vibrational Spectra and Structures of Ionic Liquids. II. The Pure Alkali Metal Nitrates

Vibrational Spectra and Structures of Ionic Liquids. II. The Pure Alkali Metal Nitrates

10.1063/1.1669712

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

Attenuated total reflection infrared spectroscopy has been used together with thin-film transmission measurements to obtain detailed spectra for the molten nitrates of lithium, sodium, and potassium in the 250–4000-cm−1 range. The techniques, which yield spectra approaching the ultimate in resolution and precision possible for salt melts, permit the detection of several features which, when combined with Raman data, definitely rule out a melt structure dominated by either ion pairs or simple 1:1 complexes. Rather, systems wherein important factors include both cation distortion of the nitrate symmetry (site effect) and vibrational coupling of neighboring anions (correlation field effect) are definitely suggested. Thus, an assignment based on a perturbed orthorhombic lattice structure is presented which accounts very satisfactorily for all observed features. Order in the melts seems to be slightly greater in LiNO3 than for the other salts.

Bibliography

Williamson, K., Li, P., & Devlin, J. P. (1968). Vibrational Spectra and Structures of Ionic Liquids. II. The Pure Alkali Metal Nitrates. The Journal of Chemical Physics, 48(9), 3891â3896.

Authors 3

Ken Williamson (first)
Paul Li (additional)
J. Paul Devlin (additional)

References 13 Referenced 54

10.1063/1.1731994 / J. Chem. Phys. (1961)
10.1063/1.1727297 / J. Chem. Phys. (1966)
10.1063/1.1701184 / J. Chem. Phys. (1961)
{'key': '2024020903280674000_r4'}
10.1063/1.1718998 / Rev. Sci. Instr. (1964)
10.1063/1.1727005 / J. Chem. Phys. (1966)
{'key': '2024020903280674000_r7'}
10.1063/1.1731284 / J. Chem. Phys. (1960)
10.1021/j100877a031 / J. Phys. Chem. (1966)
{'key': '2024020903280674000_r10'}
10.1063/1.1742260 / J. Chem. Phys. (1955)
10.1039/df9613200053 / Discussions Faraday Soc. (1961)
10.1016/0371-1951(64)80161-2 / Spectrochim. Acta (1964)

Dates

Type	When
Created	21 years, 6 months ago (Feb. 4, 2004, 4:33 p.m.)
Deposited	1 year, 6 months ago (Feb. 8, 2024, 10:31 p.m.)
Indexed	4 months, 3 weeks ago (April 5, 2025, 9:09 p.m.)
Issued	57 years, 3 months ago (May 1, 1968)
Published	57 years, 3 months ago (May 1, 1968)
Published Print	57 years, 3 months ago (May 1, 1968)

Funders 0

None

BibTeX

@article{Williamson_1968, title={Vibrational Spectra and Structures of Ionic Liquids. II. The Pure Alkali Metal Nitrates}, volume={48}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1669712}, DOI={10.1063/1.1669712}, number={9}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Williamson, Ken and Li, Paul and Devlin, J. Paul}, year={1968}, month=may, pages={3891–3896} }

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