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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCSD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-261.405404
Energy at 298.15K 
HF Energy-260.580450
Nuclear repulsion energy162.480856
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 CCSD/aug-cc-pVDZ
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 3305 3184 0.42      
2 A1 1495 1440 17.55      
3 A1 1352 1303 4.12      
4 A1 1058 1019 2.31      
5 A1 1027 989 17.19      
6 A1 895 862 24.42      
7 A2 871 839 0.00      
8 A2 640 617 0.00      
9 B1 858 826 38.47      
10 B1 633 610 1.26      
11 B2 3290 3169 0.08      
12 B2 1606 1547 0.04      
13 B2 1202 1158 3.18      
14 B2 962 926 20.18      
15 B2 913 880 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 10052.9 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 9685.0 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 CCSD/aug-cc-pVDZ
ABC
0.34645 0.31991 0.16633

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.132
N2 0.000 1.137 0.357
N3 0.000 -1.137 0.357
C4 0.000 0.719 -0.886
C5 0.000 -0.719 -0.886
H6 0.000 1.423 -1.715
H7 0.000 -1.423 -1.715

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37591.37592.14182.14183.18293.1829
N21.37592.27421.31132.23372.09213.2936
N31.37592.27422.23371.31133.29362.0921
C42.14181.31132.23371.43781.08802.2967
C52.14182.23371.31131.43782.29671.0880
H63.18292.09213.29361.08802.29672.8453
H73.18293.29362.09212.29671.08802.8453

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.671 O1 N3 C5 105.671
N2 O1 N3 111.466 N2 C4 C5 108.597
N2 C4 H6 121.098 N3 C5 C4 108.597
N3 C5 H7 121.098 C4 C5 H7 130.305
C5 C4 H6 130.305
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability