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: Calculated > Energy > Optimized > Energy

All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: MP3=FULL/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-261.517992
Energy at 298.15K 
HF Energy-260.570381
Nuclear repulsion energy164.864711
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/6-31G(2df,p)
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 3375 3375 1.42      
2 A1 1510 1510 13.68      
3 A1 1388 1388 3.98      
4 A1 1094 1094 18.31      
5 A1 1084 1084 7.82      
6 A1 953 953 19.67      
7 A2 947 947 0.00      
8 A2 676 676 0.00      
9 B1 901 901 31.08      
10 B1 667 667 1.46      
11 B2 3360 3360 0.50      
12 B2 1637 1637 0.42      
13 B2 1247 1247 3.99      
14 B2 1039 1039 1.03      
15 B2 992 992 21.90      

Unscaled Zero Point Vibrational Energy (zpe) 10434.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10434.5 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/6-31G(2df,p)
ABC
0.35478 0.33099 0.17124

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.114
N2 0.000 1.116 0.357
N3 0.000 -1.116 0.357
C4 0.000 0.709 -0.877
C5 0.000 -0.709 -0.877
H6 0.000 1.405 -1.694
H7 0.000 -1.405 -1.694

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.34911.34912.11392.11393.13993.1399
N21.34912.23251.29952.20302.07063.2498
N31.34912.23252.20301.29953.24982.0706
C42.11391.29952.20301.41751.07312.2660
C52.11392.20301.29951.41752.26601.0731
H63.13992.07063.24981.07312.26602.8101
H73.13993.24982.07062.26601.07312.8101

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.888 O1 N3 C5 105.888
N2 O1 N3 111.670 N2 C4 C5 108.276
N2 C4 H6 121.264 N3 C5 C4 108.276
N3 C5 H7 121.264 C4 C5 H7 130.460
C5 C4 H6 130.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability