Microwave spectrum and amino hydrogen location in 7-azaindole
作者:Walther Caminati、Salvatore Di Bernardo、Agostino Trombetti
DOI:10.1016/0022-2860(90)80484-2
日期:1990.6
Abstract The microwave spectra of 7-azaindole and of its N-D monodeuterated isotopic species, obtained at 70°C, show the full planarity of the molecule. The dipole moment components have also been measured and the values μ a = 1.49(6) and μ b = 0.77(3) D have been obtained.
摘要 在 70°C 下获得的 7-氮杂吲哚及其 ND 单氘化同位素的微波光谱显示了该分子的完全平面性。偶极矩分量也已被测量,并且获得了 μ a = 1.49(6) 和 μ b = 0.77(3) D 的值。
High resolution electronic spectra of 7-azaindole and its Ar atom van der Waals complex
作者:Cheolhwa Kang、John T. Yi、David W. Pratt
DOI:10.1063/1.1990119
日期:2005.9
excitation spectra of the S(1)<--S(0) origin band of 7-azaindole [1H-pyrrolo(2,3-b)pyridine] and its argon atom vanderWaalscomplex have been recorded and assigned. The derived rotational constants give information about the geometries of the two molecules in both electronic states. The equilibrium position of the argon atom in the azaindole complex is considerably different from its position in
two-step laser-induced fluorescence (TSLIF) in various nonpolar solvents. Comprehensive analyses reveal a previously unrecognized finite rise kinetics for the long-lived transient species. Furthermore, the time-dependentspectral evolution indicates that the TSLIF spectrum obtained at the rise component is different from that of the decay component, while both spectra are red shifted relative to the prompt
Photophysics of 7-Azaindole, Its Doubly-H-Bonded Base-Pair, and Corresponding Proton-Transfer-Tautomer Dimeric Species, via Defining Experimental and Theoretical Results
作者:Javier Catalán、Michael Kasha
DOI:10.1021/jp0028397
日期:2000.11.1
Photophysical research on the experimental and theoretical bases for the biprotonic transfer in the doubly-H-bonded dimer of 7-azaindole (7AI) is reported. The spectroscopic properties of the 7AI monomer, the normal-tautomer dimer, and the proton-transfer tautomer dimer are delineated by absorption, fluorescence and excitation spectra. The monomeric 7AI molecule is shown to exist at 10-6 M in hydrocarbon
报道了7-氮杂吲哚(7AI)双氢键二聚体中双质子转移的实验和理论基础的光物理研究。7AI 单体、正常互变异构体二聚体和质子转移互变异构体二聚体的光谱特性由吸收光谱、荧光光谱和激发光谱描绘。单体 7AI 分子在 298 K 的烃溶液中以 10-6 M 存在,而纯二聚体在 2-甲基丁烷 (2MB) 中的 10-4 M 溶液中的温度低于 227 K。吡咯位点的氘化产生仅表现出正常互变异构体荧光的二聚体,而非氘化的 7AI 二聚体产生独特的质子转移互变异构体荧光,表明量子力学隧穿是双质子转移的主要机制。
Isotopic induction of the excited-state single-proton transfer in 7-azaindole dimer
作者:J. Catalán、P. Pérez
DOI:10.1039/b415242p
日期:——
The electronic spectrum in 2-methylbutane of the doubly hydrogen-bonded7-azaindoledimer in monodeuterated form, (7AI)2-hd, is consistent with a single-proton transfer that never produces the typical emission for the double proton transfer with its centre at 480 nm and onset at 413 nm.