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CO₂ Ice at 50 K

Ice Datasets
Description
Sample Type Ice
Components CO₂
Ratio 1
Substrate CsI
Phase / State
Reference Temperature 50 K
Wavenumber (cm⁻¹) 548.506 - 3993.12
Wavelength (µm) 2.504 - 18.231

Carbon dioxide (CO₂) ice deposited at 10 K onto a cesium iodide (CsI) substrate, then warmed up to 50 K, and held at 50 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 50 K, by infrared transmission spectroscopy from 3993 to 548 cm⁻¹ with a resolution of 1 cm⁻¹.

More information can be found in the publication and on the OCdb contributor's page.

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n,k,All

References

Any use of this data should recognize the parent publication(s):

Ehrenfreund, P., Boogert, A. C. A., Gerakines, P. A., Tielens, A. G. G. M. and van Dishoeck, E. F. (1997) 'Infrared spectroscopy of interstellar apolar ice analogs', Astronomy and Astrophysics, 328, pp. 649-669.

n/k Values

Compatible Datasets (i.e., same molecule, phase, and temperature) are marked with *

Select Chemical Ratio Phase / State T (K) Wavelength
Min (µm)		 Wavelength
Max (µm)		 Compatible n k Reference
CO₂ 1 50 2.5 19.997 * ✓ ✓ Hudgins et al. (1993)
CO₂ 1 10 2.5 19.997 ✓ ✓ Hudgins et al. (1993)
CO₂ 1 10 2.504 19.184 ✓ ✓ Ehrenfreund et al. (1997)
CO₂ 1 12.5 2.381 20 ✓ ✓ Baratta and Palumbo (1998)
CO₂ 1 28 25.005 1602.533 ✓ ✓ Gavdush et al. (2022)
CO₂ 1 30 2.5 19.997 ✓ ✓ Hudgins et al. (1993)
CO₂ 1 Dissociated 4.2 0.546 0.546 ✓ - Kruger and Ambs (1959)
CO₂ 1 4.2 0.546 0.546 ✓ - Kruger and Ambs (1959)
CO₂ 1 Polycrystalline 65-80 1.1 1.1 ✓ - Yamada and Person (1964)
CO₂ 1 Crystalline 70 2.5 20 ✓ ✓ Gerakines and Hudson (2020)
CO₂ 1 70 2.5 19.997 ✓ ✓ Hudgins et al. (1993)
CO₂ 1 77 0.546 0.546 ✓ - Kruger and Ambs (1959)
CO₂ 1 Amorphous 8 2.5 20 ✓ ✓ Gerakines and Hudson (2020)