return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Experimental > One molecule all properties

Experimental data for Se2+ (selenium diatomic cation)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/Se2/c1-2 XIMIGUBYDJDCKI-UHFFFAOYSA-N [Se]=[Se]
State Conformation
3Σg D*H
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation 141.10 3.00 kJ mol-1 2005Se
Hfg(0K) enthalpy of formation   3.00 kJ mol-1 2005Se
Entropy (298.15K) entropy 247.38 0.40 J K-1 mol-1 2005Se
Heat Capacity (298.15K) heat capacity 41.71 0.20 J K-1 mol-1 2005Se
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations An error occurred on the server when processing the URL. Please contact the system administrator.

If you are the system administrator please click here to find out more about this error.

Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference