Characterisation of the (E)over-tilde'(1)A'(1) Rydberg state of ammonia by resonance enhanced multiphoton ionisation spectroscopy

被引：12

作者：

Ashfold, MNR ^{[1
]}

Western, CM ^{[1
]}

Hudgens, JW ^{[1
]}

Johnson, RD ^{[1
]}

机构：

[1] NATL INST STAND & TECHNOL, CHEM SCI & TECHNOL LAB, PHYS & CHEM PROPERTIES DIV, GAITHERSBURG, MD 20899 USA

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 260卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(96)00803-2

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：

Progression of bands associated with the nu(2) (bending) vibrational mode of the (E) over tilde'(1)A'(1) (4pa ''(2) <-- 3a(1)) Rydberg states of both NH3 and ND3 have been observed as two-photon resonances in the multiphoton ionisation spectrum of these two isotopomers at excitation wavelengths in the range 275-248 nm. Band contour analysis yields excited state spectroscopic parameters and some insight into the predissociation behaviour of these levels, all of which show many parallels with previous knowledge concerning the (C) over tilde'(1)A'(1) Rydberg state of ammonia (arising from the corresponding 3pa ''(2) <-- 3a(1) orbital promotion).

引用

页码：27 / 33

页数：7

共 34 条

[1] A PHOTOELECTRON SPECTROSCOPIC STUDY OF (3+1) RESONANT MULTIPHOTON IONIZATION OF NO AND NH3 [J].