Electron-impact excitation of the low-lying electronic states of HCN

Journal Article · Thu Dec 01 04:00:00 EST 1977 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.434688· OSTI ID:5421391

Chutjian, A; Tanaka, H; Wicke, B G; Srivastava, S K

We report the first study of the low-energy electron-impact excitation of low-lying electronic transitions in the HCN molecule. Measurements were made at incident electron energies of 11.6 and 21.6 eV in the energy-loss range of 3--10 eV, and at scattering angles of 20/sup 0/--130/sup 0/. Inelastic scattering spectra were placed on the absolute cross-section scale by determining first the ratio of inelastic-to-elastic scattering cross sections, and then separately measuring the absolute elastic scattering cross section. Several new electronic transitions are observed which are intrinsically overlapped in the molecule itself. Assignments of these electronic transitions are suggested. These assignments are based on present spectroscopic and cross-sections measurments, high-energy electron scattering spectra, optical absorption spectra, and ab initio molecular orbital calculations.

• Research Organization: Physics Section, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91103
• OSTI ID: 5421391
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 67:11; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ENERGY-LEVEL TRANSITIONS
EXCITATION
HYDROCYANIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MOLECULE COLLISIONS