Hydrogen chloride: Constants of diatomic molecules by Klaus P. Huber and others

By Klaus P. Huber, Gerhard H. Herzberg.

Publisher: National Institute of Standards and Technology.

Online text: webbook.nist.gov/cgi/cbook.cgi?ID=C7647010&Mask=1000

Cited passages: HCl, ground electronic state diatomic constants: equilibrium internuclear separation 1.274552 Å; Huber and Herzberg compilation, HCl diatomic constants, note 35: 1.1085, 1.1390 and 1.1685 D for vibrational levels 0, 1 and 2; reference to Kaiser (1970).