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|Title:||Infrared spectroscopy of salt-water complexes|
|Authors:||Ellis, Andrew M.|
Sadoon, Ahmed M.
Das Neves Rodrigues, Natercia
|Publisher:||American Institute of Physics|
|Citation:||Journal of Chemical Physics, 2016, 144, 121103|
|Abstract:||To explore how the ion-pair in a single salt molecule evolves with the addition of water, infrared (IR) spectra of complexes composed of NaCl and multiple water molecules have been recorded for the first time. The NaCl(H2O)n complexes were formed and probed in liquid helium nanodroplets, and IR spectra were recorded for n = 1 → 4. The spectra for n = 1, 2, and 3 are consistent with formation of the lowest energy contact-ion pair structures in which each water molecule forms a single ionic hydrogen bond to an intact Na+Cl− ion-pair. Alternative structures with hydrogen bonding between water molecules become energetically competitive for n = 4, and the IR spectrum indicates likely the coexistence of at least two isomers.|
|Rights:||Copyright © 2016 AIP Publishing LLC. Deposited with reference to the publisher’s archiving policy available on the SHERPA/RoMEO website.|
|Appears in Collections:||Published Articles, Dept. of Chemistry|
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|NaCl(H2O)n - JCP - revised.doc||Post-review (final submitted)||367.5 kB||Microsoft Word||View/Open|
|NaCl(H2O)n - JCP - revised.pdf||Post-review (final submitted)||639.65 kB||Adobe PDF||View/Open|
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