science-softCon uv/vis+ spectra data base;	www.uv-spectra.de, (C) science-softCon 2019

Substance: hydrogen cyanide			Other Names: hydrocyanic acid

Formula: HCN					CAS-No.: 74-90-8

Study: vuv spectra

                
Authors: J.A. Nuth, S. Glicker

Title: The vacuum ultraviolet spectra of HCN, C2N2, and CH3CN

Journal/Source: J. Quant. Spectr. Rad. Transfer, 28, 223-231, (1982); http://dx.doi.org/10.1016/0022-4073(82)90025-5


Data: table, diagram

Energy/Wavelength range: 60 - 160 nm

Resolution: 0.05 nm (FWHM)

Temperature: 

Temperature dependence: 

Pressure/Concentration:

Phase:

pH:


Comments: Quantitative vacuum ultraviolet absorption spectra for HCN, C2N2, and CH3CN have been obtained over the 
wavelength range 60-160 nm.
The spectrum of HCN between 62 and 148 nm appears in Fig. 2. An ionization continuum is shown containing a weak vibrational 
structure that continues to the first adiabatic ionization potential at 89.1 nm. A complex set of Rydberg series, starting at about 122 nm, 
appears to converge to the first ionization potential. The series which converges to the second ionization potential overlaps this first 
series and begins at about 116 nm.

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