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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-260.959191
Energy at 298.15K 
HF Energy-260.383961
Nuclear repulsion energy157.110004
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 3281 3162 2.07      
2 A1 1443 1390 11.75      
3 A1 1311 1263 9.66      
4 A1 1045 1007 0.22      
5 A1 915 882 0.41      
6 A1 721 695 13.42      
7 A2 852 821 0.00      
8 A2 618 596 0.00      
9 B1 849 818 45.71      
10 B1 563 542 0.97      
11 B2 3266 3147 0.00      
12 B2 1560 1503 3.93      
13 B2 1221 1176 9.96      
14 B2 945 911 11.56      
15 B2 626 603 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 9607.4 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 9257.6 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
0.32763 0.29562 0.15540

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 1.196
N2 0.000 1.201 0.337
N3 0.000 -1.201 0.337
C4 0.000 0.728 -0.899
C5 0.000 -0.728 -0.899
H6 0.000 1.397 -1.752
H7 0.000 -1.397 -1.752

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.47611.47612.21722.21723.26193.2619
N21.47612.40171.32352.29052.09843.3338
N31.47612.40172.29051.32353.33382.0984
C42.21721.32352.29051.45521.08452.2896
C52.21722.29051.32351.45522.28961.0845
H63.26192.09843.33381.08452.28962.7941
H73.26193.33382.09842.28961.08452.7941

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.608 O1 N3 C5 104.608
N2 O1 N3 108.883 N2 C4 C5 110.951
N2 C4 H6 120.929 N3 C5 C4 110.951
N3 C5 H7 120.929 C4 C5 H7 128.120
C5 C4 H6 128.120
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability