The structure of uracil:: A laser ablation rotational study

被引：62

作者：

Vaquero, Vanesa ^{[1
]}

Eugenia Sanz, M. ^{[1
]}

Lopez, Juan C. ^{[1
]}

Alonso, Jose L. ^{[1
]}

机构：

[1] Univ Valladolid, Dept Quim Fis & Quim Inorgan, Grp Espectroscopia Mol, E-47005 Valladolid, Spain

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2007年 / 111卷 / 18期

关键词：

D O I：

10.1021/jp071642c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：3443 / 3445

页数：3

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