CO

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Species data
Name Carbon monoxide
Common Formula CO
Mass 27.99491 a.m.u
Charge 0
CAS 630-08-0
Inchi InChI=1S/CO/c1-2
InchiKey UGFAIRIUMAVXCW-UHFFFAOYSA-N
Electronic State Electronic state
Excitation Ground State

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KIDA CO

ISM Abundance
log10 Abundance Reference Source Name Source Type Link
Polarizability
Definition: total
Value 3): 1.953
Method: Measurements
Origin: Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE
Reference:
Dipole moment
Value (D): 0.112
Method: Measurements
Origin: Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE
Reference:
Enthalpy of formation
T (K): 0
Value (kJ.mol-1) : -113.813 ±0.17
Method: Reviews and Evaluations
Origin: Other database
Reference:
T (K): 298
Value (kJ.mol-1) : -110.53 ±0.17
Method: Reviews and Evaluations
Origin: Other database
Reference:
T (K): 298
Value (kJ.mol-1) : -110.53 ±0.17
Method: Measurements
Origin: Other database
Reference:
T (K): 0
Value (kJ.mol-1) : -113.81 ±0.17
Method: Measurements
Origin: Other database
Reference:
Desorption energy
Emean (K): 1300 ±390
E min (K): 0
E max (K): 0
Pre-exponential factor (s-1): 0.00E+0
Method: Calculations
Origin: Bibliography
Reference: Wakelam, V. et al. ;2017;ArXiv e-prints;,
Type of surface: H2O
Description: To estimate the unknown binding energies (for most of the radicals for example), we have developed a model founded on the stabilization energy of the complex between the various species and one water molecule. Then, we assume that the binding energy of the species with ASW is proportional to the energy of interaction between this species and one water molecule. To determine the proportionality coefficients, we fit the dependency of the experimental binding energies versus the calculated energies of the complexes for 16 stable molecules. Uncertainties in ED is estimated to be 30%. The preexponential factor is to be computed using the Hasegawa et al. (1992) approximation.
Evaluation:
Emean (K): 1150
E min (K): 0
E max (K): 0
Pre-exponential factor (s-1): 0.00E+0
Method: Estimation
Origin: Other database
Reference:
Type of surface: H2O
Description: This binding energy was listed in the original OSU gas-grain code from Eric Herbst group in 2006. Herma Cuppen's suggestion. The pre-exponential factor is not given. It can be computed using the formula given in Hasegawa et al. (1992).
Evaluation:
Diffusion energy
E (K): 3264 ±252
Pre-exponential factor (cm2 s-1): 2.20E-1
Method: Measurements
Origin: Bibliography
Reference: Ghesquiere, P. et al. ;2015;Phys. Chem. Chem. Phys.;17, 11455-11468
Substrate: H2O ice / Amorphous
Type of diffusion: Bulk
Description: Arrhenius fit of experimental data for temperatures between 90 and 170K. The pre-exponantiel factor was fixed to 0.22 cm2 s-1.
Evaluation:
E (K): 603 ±7.2
Pre-exponential factor (cm2 s-1): 7.94E-2
Method: Calculations
Origin: Bibliography
Reference: Karssemeijer, L. J. et al. ;2012;Phys. Chem. Chem. Phys.;14, 10844-10852
Substrate: H2O ice / Crystalline / Monocrystalline / Hexagonal
Type of diffusion: surface
Description:
Evaluation:
E (K): 117.9
Pre-exponential factor (cm2 s-1): 1.60E-11
Method: Measurements
Origin: Bibliography
Reference: Mispelaer, F. et al. ;2013;Astronomy & Astrophysics;555, A13
Substrate: H2O ice / Amorphous
Type of diffusion: surface
Description: These data have been obtained by fitting experimental diffusion rates. The diffusion rates (in cm2s-1) as a function of temperature are listed in Table 3 of Mispelear et al. (2013) and are the following between 5.2e-13 and 8e-13 for CO (for temperatures between 35 and 40K)
Evaluation:
E (K): 300 ±174
Pre-exponential factor (cm2 s-1): 9.20E-10
Method: Measurements
Origin: Bibliography
Reference: Karssemeijer, L. J. et al. ;2014;Astrophysical Journal;781, 16
Substrate: H2O ice / Amorphous
Type of diffusion: surface
Description:
Evaluation: