The structure of uracil: A laser ablation rotational study

Vanesa Vaquero; Maria Eugenia Sanz; Juan C. Lopez; Jose L. Alonso

doi:10.1021/jp071642c

The structure of uracil: A laser ablation rotational study

Vanesa Vaquero, Maria Eugenia Sanz, Juan C. Lopez, Jose L. Alonso^*

^*Corresponding author for this work

Chemistry

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

68 Citations (Scopus)

Abstract

The jet-cooled rotational spectrum of uracil has been investigated using laser ablation molecular beam Fourier transform microwave (LA-MB-FTMW) spectroscopy. The quadrupole structure originated by the two N-14 nuclei of uracil has been completely resolved and assigned. This provides a definitive method to establish the pyrrolic or pyrimidinic nature of the N nuclei and allows us to conclude that the observed tautomer of uracil in the gas phase is the diketo form. From the rotational constants of the isotopic species detected, a structure of uracil has been determined.

Original language	English
Pages (from-to)	3443-3445
Number of pages	3
Journal	JOURNAL OF PHYSICAL CHEMISTRY A
Volume	111
Issue number	18
DOIs	https://doi.org/10.1021/jp071642c
Publication status	Published - 10 May 2007

Keywords

TRANSFORM MICROWAVE SPECTROMETER
GAS-PHASE STRUCTURE
SPECTRUM
SHAPE
ALANINE
N-14

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10.1021/jp071642c

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title = "The structure of uracil: A laser ablation rotational study",

abstract = "The jet-cooled rotational spectrum of uracil has been investigated using laser ablation molecular beam Fourier transform microwave (LA-MB-FTMW) spectroscopy. The quadrupole structure originated by the two N-14 nuclei of uracil has been completely resolved and assigned. This provides a definitive method to establish the pyrrolic or pyrimidinic nature of the N nuclei and allows us to conclude that the observed tautomer of uracil in the gas phase is the diketo form. From the rotational constants of the isotopic species detected, a structure of uracil has been determined.",

keywords = "TRANSFORM MICROWAVE SPECTROMETER, GAS-PHASE STRUCTURE, SPECTRUM, SHAPE, ALANINE, N-14",

author = "Vanesa Vaquero and Sanz, {Maria Eugenia} and Lopez, {Juan C.} and Alonso, {Jose L.}",

year = "2007",

month = may,

day = "10",

doi = "10.1021/jp071642c",

language = "English",

volume = "111",

pages = "3443--3445",

journal = "JOURNAL OF PHYSICAL CHEMISTRY A",

issn = "1089-5639",

publisher = "American Chemical Society",

number = "18",

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TY - JOUR

T1 - The structure of uracil

T2 - A laser ablation rotational study

AU - Vaquero, Vanesa

AU - Sanz, Maria Eugenia

AU - Lopez, Juan C.

AU - Alonso, Jose L.

PY - 2007/5/10

Y1 - 2007/5/10

N2 - The jet-cooled rotational spectrum of uracil has been investigated using laser ablation molecular beam Fourier transform microwave (LA-MB-FTMW) spectroscopy. The quadrupole structure originated by the two N-14 nuclei of uracil has been completely resolved and assigned. This provides a definitive method to establish the pyrrolic or pyrimidinic nature of the N nuclei and allows us to conclude that the observed tautomer of uracil in the gas phase is the diketo form. From the rotational constants of the isotopic species detected, a structure of uracil has been determined.

AB - The jet-cooled rotational spectrum of uracil has been investigated using laser ablation molecular beam Fourier transform microwave (LA-MB-FTMW) spectroscopy. The quadrupole structure originated by the two N-14 nuclei of uracil has been completely resolved and assigned. This provides a definitive method to establish the pyrrolic or pyrimidinic nature of the N nuclei and allows us to conclude that the observed tautomer of uracil in the gas phase is the diketo form. From the rotational constants of the isotopic species detected, a structure of uracil has been determined.

KW - TRANSFORM MICROWAVE SPECTROMETER

KW - GAS-PHASE STRUCTURE

KW - SPECTRUM

KW - SHAPE

KW - ALANINE

KW - N-14

U2 - 10.1021/jp071642c

DO - 10.1021/jp071642c

M3 - Letter

SN - 1089-5639

VL - 111

SP - 3443

EP - 3445

JO - JOURNAL OF PHYSICAL CHEMISTRY A

JF - JOURNAL OF PHYSICAL CHEMISTRY A

IS - 18

ER -

The structure of uracil: A laser ablation rotational study

Abstract

Keywords

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