High-resolution electronic spectra of 2-hydroxy and 2-aminopyridine. Perturbing effects of the nitrogen atom in the aromatic ring

被引：28

作者：

Borst, DR ^{[1
]}

Roscioli, JR ^{[1
]}

Pratt, DW ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2002年 / 106卷 / 16期

关键词：

D O I：

10.1021/jp0140769

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：

High resolution. rotationally resolved electronic spectra of 2-hydroxypyridine (2HP) and 2-aminopyridine (2AP, at similar to277 and similar to299 nm, respectively) have been observed and fit using rigid-rotor Hamiltonians to within lifetime-limited resolutions of 170 and 120 MHz. respectively. The derived values of the rotational constants are very similar to those of phenol and aniline. However, 2HP and 2AP each exhibit inertial axis tilting, large rotations of their SI-So electronic transition moments, and intramolecular hydrogen bonds, making them very different from their hydrocarbon analogues. Possible reasons for this behavior are discussed.

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页码：4022 / 4027

页数：6

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