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High-resolution spectroscopy of induced chiral dimers: A study of the dimers of ethanol by Fourier transform microwave spectroscopy
We present the first recording of the high-resolution spectrum of an induced chiral dimer. Three conformers of the induced chiral dimers of ethanol have been observed using a pulsed molecular-beam Fourier transform microwave spectrometer. The rotational constants of the normal isotopomers of the thr...
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| Published in: | The Journal of chemical physics 2005-10, Vol.123 (13), p.134324-134324-7 |
|---|---|
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
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| Summary: | We present the first recording of the high-resolution spectrum of an induced chiral dimer. Three conformers of the induced chiral dimers of ethanol have been observed using a pulsed molecular-beam Fourier transform microwave spectrometer. The rotational constants of the normal isotopomers of the three species have been determined to be (a)
A
=
5113.826
(
5
)
,
B
=
1329.7214
(
4
)
, and
C
=
1257.5151
(
3
)
MHz
, (b)
A
=
5086.459
(
5
)
,
B
=
1316.6508
(
4
)
, and
C
=
1243.6329
(
4
)
MHz
, and (c)
A
=
4851.608
(
5
)
,
B
=
1369.7558
(
6
)
, and
C
=
1243.4184
(
4
)
MHz
. The observed species have been assigned to calculated structures via Kraitchman double substitution analyses and
ab initio
calculations. The Kraitchman analyses and the fitted centrifugal distortion parameters suggest that the deuterium bond is significantly stronger than the hydrogen bond in the dimers of ethanol. |
|---|---|
| ISSN: | 0021-9606 1089-7690 |
| DOI: | 10.1063/1.2049267 |