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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: QCISD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-261.343416
Energy at 298.15K 
HF Energy-260.544696
Nuclear repulsion energy162.794688
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 QCISD/6-31G**
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 3357 3161 0.23      
2 A1 1525 1436 12.86      
3 A1 1377 1296 5.41      
4 A1 1082 1019 0.30      
5 A1 1026 966 15.10      
6 A1 899 847 22.73      
7 A2 883 832 0.00      
8 A2 642 605 0.00      
9 B1 871 820 33.80      
10 B1 633 596 0.75      
11 B2 3344 3148 0.03      
12 B2 1641 1544 0.28      
13 B2 1240 1168 4.21      
14 B2 970 913 19.82      
15 B2 923 869 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 10207.2 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 9609.1 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 QCISD/6-31G**
ABC
0.34840 0.32067 0.16698

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.132
N2 0.000 1.139 0.353
N3 0.000 -1.139 0.353
C4 0.000 0.714 -0.882
C5 0.000 -0.714 -0.882
H6 0.000 1.404 -1.708
H7 0.000 -1.404 -1.708

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38041.38042.13732.13733.16853.1685
N21.38042.27861.30602.22732.07793.2735
N31.38042.27862.22731.30603.27352.0779
C42.13731.30602.22731.42861.07612.2736
C52.13732.22731.30601.42862.27361.0761
H63.16852.07793.27351.07612.27362.8079
H73.16853.27352.07792.27361.07612.8079

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.387 O1 N3 C5 105.387
N2 O1 N3 111.244 N2 C4 C5 108.991
N2 C4 H6 121.151 N3 C5 C4 108.991
N3 C5 H7 121.151 C4 C5 H7 129.857
C5 C4 H6 129.857
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability