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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: QCISD(T)=FULL/6-31+G**

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(T)=FULL/6-31+G**
 hartrees
Energy at 0K-261.413481
Energy at 298.15K 
HF Energy-260.548743
Nuclear repulsion energy162.004331
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(T)=FULL/6-31+G**
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 3335 3335        
2 A1 1474 1474        
3 A1 1343 1343        
4 A1 1072 1072        
5 A1 1003 1003        
6 A1 873 873        
7 A2 830 830        
8 A2 616 616        
9 B1 839 839        
10 B1 615 615        
11 B2 3321 3321        
12 B2 1583 1583        
13 B2 1215 1215        
14 B2 954 954        
15 B2 852 852        

Unscaled Zero Point Vibrational Energy (zpe) 9963.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9963.4 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(T)=FULL/6-31+G**
ABC
0.34474 0.31797 0.16541

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.139
N2 0.000 1.146 0.355
N3 0.000 -1.146 0.355
C4 0.000 0.714 -0.887
C5 0.000 -0.714 -0.887
H6 0.000 1.405 -1.713
H7 0.000 -1.405 -1.713

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38901.38902.14792.14793.17933.1793
N21.38902.29301.31492.23662.08403.2841
N31.38902.29302.23661.31493.28412.0840
C42.14791.31492.23661.42751.07722.2740
C52.14792.23661.31491.42752.27401.0772
H63.17932.08403.28411.07722.27402.8097
H73.17933.28412.08402.27401.07722.8097

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.159 O1 N3 C5 105.159
N2 O1 N3 111.257 N2 C4 C5 109.213
N2 C4 H6 120.878 N3 C5 C4 109.213
N3 C5 H7 120.878 C4 C5 H7 129.909
C5 C4 H6 129.909
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability