C₂H₂ Ice at 40 K
| Sample Type | Ice |
|---|---|
| Components | C₂H₂ |
| Ratio | 1 |
| Substrate | KBr |
| Phase / State | Crystalline orthorhombic |
| Reference Temperature | 40 K |
| Wavenumber (cm⁻¹) | 500 - 5000 |
| Wavelength (µm) | 2 - 20 |
Crystalline orthorhombic acetylene (C₂H₂) ice deposited at 70 K onto a potassium bromide (KBr) substrate, then cooled down to 40 K, and held at 40 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 40 K, by infrared transmission spectroscopy from 5000 to 500 cm⁻¹ with a resolution of 2 cm⁻¹.
The transmission (T) spectrum of a 0.5-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.