The mid-IR absorption spectrum of gas-phase clusters of the nucleobases guanine and cytosine

被引:66
作者
Bakker, JM
Compagnon, I
Meijer, G
von Helden, G
Kabelác, M
Hobza, P
de Vries, MS
机构
[1] FOM, Inst Plasma Phys Rijnhuizen, NL-3439 MN Nieuwegein, Netherlands
[2] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany
[3] Acad Sci Czech Republ, Inst Organ Chem & Biochem, Prague 16610 6, Czech Republic
[4] Ctr Complex Mol Syst & Biomol, Prague 16610 6, Czech Republic
[5] Univ Calif Santa Barbara, Dept Chem, Santa Barbara, CA 93106 USA
关键词
D O I
10.1039/b316158g
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 mid-infrared (IR) absorption spectrum of jet-cooled clusters of the nucleobases guanine and cytosine has been recorded in the 500-1800 cm(-1) range by ion-dip spectroscopy. Some 30 clearly separated and sharp resonances are observed. The combination of the experimental data with new high-level ab initio calculations is consistent with a previous structural assignment and a tentative assignment is made to the K7-1E structure of guanine-cytosine. These data can serve as a test of the method in the mid-IR regime.
引用
收藏
页码:2810 / 2815
页数:6
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