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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: QCISD(T)=FULL/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 QCISD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-261.460595
Energy at 298.15K 
HF Energy-260.576413
Nuclear repulsion energy161.424555
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/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 3287 3189        
2 A1 1453 1409        
3 A1 1318 1279        
4 A1 1048 1017        
5 A1 993 963        
6 A1 857 831        
7 A2 835 810        
8 A2 625 606        
9 B1 832 807        
10 B1 620 602        
11 B2 3272 3174        
12 B2 1552 1506        
13 B2 1175 1140        
14 B2 942 914        
15 B2 819 794        

Unscaled Zero Point Vibrational Energy (zpe) 9813.2 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 9519.8 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/aug-cc-pVDZ
ABC
0.34224 0.31573 0.16422

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.141
N2 0.000 1.148 0.358
N3 0.000 -1.148 0.358
C4 0.000 0.719 -0.891
C5 0.000 -0.719 -0.891
H6 0.000 1.422 -1.722
H7 0.000 -1.422 -1.722

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38991.38992.15502.15503.19673.1967
N21.38992.29641.32032.24582.09763.3064
N31.38992.29642.24581.32033.30642.0976
C42.15501.32032.24581.43721.08902.2966
C52.15502.24581.32031.43722.29661.0890
H63.19672.09763.30641.08902.29662.8446
H73.19673.30642.09762.29661.08902.8446

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.309 O1 N3 C5 105.309
N2 O1 N3 111.404 N2 C4 C5 108.989
N2 C4 H6 120.757 N3 C5 C4 108.989
N3 C5 H7 120.757 C4 C5 H7 130.255
C5 C4 H6 130.255
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability