C₂H₂ Ice at 20 K
| Sample Type | Ice |
|---|---|
| Components | C₂H₂ |
| Ratio | 1 |
| Substrate | KBr |
| Phase / State | Crystalline orthorhombic |
| Reference Temperature | 20 K |
| Wavenumber (cm⁻¹) | 3500 - 7000 |
| Wavelength (µm) | 1.429 - 2.857 |
Crystalline orthorhombic acetylene (C₂H₂) ice deposited at 70 K onto a potassium bromide (KBr) substrate, then cooled down to 20 K, and held at 20 K during spectroscopic measurements.
The real (n) and imaginary (k) parts of the complex index of refraction were determined using optical measurements done at a temperature of 20 K, by infrared transmission spectroscopy from 7000 to 3500 cm⁻¹ with a resolution of 2 cm⁻¹.
The transmission (T) spectrum of a 4.6-µm-thick sample is also provided in this dataset.
More information can be found in the publication and on the OCdb contributor's page.
Any use of this data should recognize the parent publication(s):
Hudson, R. L., Ferrante, R. F. and Moore, M. H. (2014) 'Infrared spectra and optical constants of astronomical ices: I. Amorphous and crystalline acetylene', Icarus, 228, pp. 276-287.