◆ Physical Chemistry Chemical Physics2025-12-03· Hyperfine structure
High-resolution spectroscopy of [H,C,N] <sup>+</sup> : II. Ground state rotational spectrum of HCN <sup>+</sup> ( <i>X</i> <sup>2</sup> Π)
Weslley G. D. P. Silva, Philipp C. Schmid, Divita Gupta, Sven Thorwirth, János Sarka, Oskar Asvany, Stephan Schlemmer
原始摘要（英文原文）· Original abstract
The ground-state rotational spectrum of the elusive open-shell radical cation HCN + has been measured for the first time using a vibrational-rotational double-resonance approach based on leak-out spectroscopy.