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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: CCSD(T)/6-311G*

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(T)/6-311G*
 hartrees
Energy at 0K-261.459383
Energy at 298.15K 
HF Energy-260.596302
Nuclear repulsion energy162.703907
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(T)/6-311G*
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 3272 3150        
2 A1 1454 1400        
3 A1 1336 1286        
4 A1 1058 1019        
5 A1 1025 987        
6 A1 894 861        
7 A2 835 804        
8 A2 632 609        
9 B1 833 802        
10 B1 633 610        
11 B2 3258 3137        
12 B2 1566 1507        
13 B2 1193 1148        
14 B2 959 923        
15 B2 882 849        

Unscaled Zero Point Vibrational Energy (zpe) 9915.5 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 9544.7 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 CCSD(T)/6-311G*
ABC
0.34723 0.32104 0.16681

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.129
N2 0.000 1.137 0.358
N3 0.000 -1.137 0.358
C4 0.000 0.715 -0.886
C5 0.000 -0.715 -0.886
H6 0.000 1.417 -1.710
H7 0.000 -1.417 -1.710

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37351.37352.13812.13813.17373.1737
N21.37352.27341.31342.23082.08753.2867
N31.37352.27342.23081.31343.28672.0875
C42.13811.31342.23081.43031.08312.2864
C52.13812.23081.31341.43032.28641.0831
H63.17372.08753.28671.08312.28642.8348
H73.17373.28672.08752.28641.08312.8348

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.429 O1 N3 C5 105.429
N2 O1 N3 111.700 N2 C4 C5 108.721
N2 C4 H6 120.860 N3 C5 C4 108.721
N3 C5 H7 120.860 C4 C5 H7 130.419
C5 C4 H6 130.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability