In situ Raman spectroscopy of aza-arenes adsorbed at the aqueous/silica interface

Robert A. Matzner; Roger C. Bales; Jeanne E. Pemberton

doi:10.1366/0003702944029406

In situ Raman spectroscopy of aza-arenes adsorbed at the aqueous/silica interface

Robert A. Matzner, Roger C. Bales, Jeanne E. Pemberton

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Raman spectroscopy is used to study the effect of pH on the solute/sorbent interactions and the chemical nature of the adsorbed species at the aqueous/silica interface for the aza-arenes acridine, quinoline, and pyridine. The neutral aza-arene is hydrogen-bonded to surface sites in aqueous media in which the pH is above the pK_a of the compound. A protonated aza-arene/ClO₄ ion pair interacts with surface sites in aqueous solutions in which the pH is below the pK_a of the compound. These results may be useful in predicting the fate of these environmentally significant compounds in groundwater.

Original language	English (US)
Pages (from-to)	1043-1053
Number of pages	11
Journal	Applied Spectroscopy
Volume	48
Issue number	9
DOIs	https://doi.org/10.1366/0003702944029406
State	Published - 1994
Externally published	Yes

ASJC Scopus subject areas

Instrumentation
Spectroscopy

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title = "In situ Raman spectroscopy of aza-arenes adsorbed at the aqueous/silica interface",

abstract = "Raman spectroscopy is used to study the effect of pH on the solute/sorbent interactions and the chemical nature of the adsorbed species at the aqueous/silica interface for the aza-arenes acridine, quinoline, and pyridine. The neutral aza-arene is hydrogen-bonded to surface sites in aqueous media in which the pH is above the pKa of the compound. A protonated aza-arene/ClO4 ion pair interacts with surface sites in aqueous solutions in which the pH is below the pKa of the compound. These results may be useful in predicting the fate of these environmentally significant compounds in groundwater.",

author = "Matzner, {Robert A.} and Bales, {Roger C.} and Pemberton, {Jeanne E.}",

year = "1994",

doi = "10.1366/0003702944029406",

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journal = "Applied Spectroscopy",

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AU - Matzner, Robert A.

AU - Bales, Roger C.

AU - Pemberton, Jeanne E.

PY - 1994

Y1 - 1994

N2 - Raman spectroscopy is used to study the effect of pH on the solute/sorbent interactions and the chemical nature of the adsorbed species at the aqueous/silica interface for the aza-arenes acridine, quinoline, and pyridine. The neutral aza-arene is hydrogen-bonded to surface sites in aqueous media in which the pH is above the pKa of the compound. A protonated aza-arene/ClO4 ion pair interacts with surface sites in aqueous solutions in which the pH is below the pKa of the compound. These results may be useful in predicting the fate of these environmentally significant compounds in groundwater.

AB - Raman spectroscopy is used to study the effect of pH on the solute/sorbent interactions and the chemical nature of the adsorbed species at the aqueous/silica interface for the aza-arenes acridine, quinoline, and pyridine. The neutral aza-arene is hydrogen-bonded to surface sites in aqueous media in which the pH is above the pKa of the compound. A protonated aza-arene/ClO4 ion pair interacts with surface sites in aqueous solutions in which the pH is below the pKa of the compound. These results may be useful in predicting the fate of these environmentally significant compounds in groundwater.

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In situ Raman spectroscopy of aza-arenes adsorbed at the aqueous/silica interface

Abstract

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