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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP3=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/3-21G
 hartrees
Energy at 0K-259.606699
Energy at 298.15K 
HF Energy-259.061042
Nuclear repulsion energy157.899746
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP3=FULL/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3322 3322 3.12      
2 A1 1403 1403 13.59      
3 A1 1316 1316 3.63      
4 A1 1033 1033 0.17      
5 A1 949 949 1.70      
6 A1 826 826 12.99      
7 A2 896 896 0.00      
8 A2 643 643 0.00      
9 B1 874 874 46.47      
10 B1 567 567 0.38      
11 B2 3306 3306 0.08      
12 B2 1542 1542 7.62      
13 B2 1239 1239 8.13      
14 B2 983 983 12.35      
15 B2 852 852 1.21      

Unscaled Zero Point Vibrational Energy (zpe) 9875.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9875.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/3-21G
ABC
0.33026 0.29911 0.15696

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.192
N2 0.000 1.194 0.335
N3 0.000 -1.194 0.335
C4 0.000 0.724 -0.894
C5 0.000 -0.724 -0.894
H6 0.000 1.382 -1.747
H7 0.000 -1.382 -1.747

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.46971.46972.20842.20843.24793.2479
N21.46972.38801.31602.27822.09063.3124
N31.46972.38802.27821.31603.31242.0906
C42.20841.31602.27821.44811.07722.2724
C52.20842.27821.31601.44812.27241.0772
H63.24792.09063.31241.07722.27242.7645
H73.24793.31242.09062.27241.07722.7645

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.749 O1 N3 C5 104.749
N2 O1 N3 108.661 N2 C4 C5 110.921
N2 C4 H6 121.417 N3 C5 C4 110.921
N3 C5 H7 121.417 C4 C5 H7 127.662
C5 C4 H6 127.662
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability