Infrared Spectral Hole Burning
of 1:1 Hydrogen-Bonded Complexes
in Solution
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Transient picosecond infrared (IR) spectra of the OH and NH-stretch (v=0–1) absorption bands of several hydrogen-bonded complexes have been investigated. Solutions of 1:1 complexes of weak acids (methanol, triethylsilanol and pyrrole, < 0.1 mol/dm3) and bases (acetonitrile, pyridine and tetrahydrofuran, < 2 mol/dm3) in CCl4 at 295 K were interrogated with IR excitation and broadband probing. Lorentzian-shaped absorption bands are uniformly bleached while those with near-Gaussian bandshapes produce transient spectral holes. These results indicate a base functionality and hydrogen-bond strength dependence for determining the broadening mechanisms of these absorptions.
1992 ◽
Vol 9
(5)
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pp. 753
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1997 ◽
Vol 101
(18)
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pp. 3506-3511
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1988 ◽
Vol 153
(5)
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pp. 379-384
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2002 ◽
Vol 98
(1-4)
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pp. 231-235
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1990 ◽
Vol 65
(14)
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pp. 1792-1795
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1990 ◽
pp. 27-61
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