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Experimental data for N2O3 (Dinitrogen trioxide)

22 02 02 11 45
Other names
Dinitrogen trioxide; Nitrogen oxide; Nitrogen oxide (N2O3);
INChI INChIKey SMILES IUPAC name
InChI=1S/N2O3/c3-1-2(4)5 LZDSILRDTDCIQT-UHFFFAOYSA-N O=N(N=O)=O
State Conformation
1A' CS
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 86.63 1.00 kJ mol-1 Gurvich
Hfg(0K) enthalpy of formation 91.20 1.00 kJ mol-1 Gurvich
Entropy (298.15K) entropy 314.73   J K-1 mol-1 Gurvich
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 17.12   kJ mol-1 Gurvich
Heat Capacity (298.15K) heat capacity 72.73   J K-1 mol-1 Gurvich
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A' 1832   1994sti/pap:2910      
2 A' 1652   1994sti/pap:2910      
3 A' 1305   1994sti/pap:2910      
4 A' 773   1994sti/pap:2910      
5 A' 627   1994sti/pap:2910      
6 A' 241   1994sti/pap:2910      
7 A' 205   1994sti/pap:2910      
8 A" 414   1994sti/pap:2910      
9 A" 63   1979HUB/HER      

vibrational zero-point energy: 3556.0 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for N2O3 (Dinitrogen trioxide).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.41543 0.14098 0.10517 1988Che/Smi:843

Calculated rotational constants for N2O3 (Dinitrogen trioxide).
Product of moments of inertia moments of inertia
777717.7amu3Å6   3.56114751496725E-114gm3 cm6
Geometric Data
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