return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B3LYP/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/daug-cc-pVTZ
 hartrees
Energy at 0K-262.146460
Energy at 298.15K 
HF Energy-262.146460
Nuclear repulsion energy163.824503
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 B3LYP/daug-cc-pVTZ
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 3267 3267 0.45 106.43 0.08 0.16
2 A1 1452 1452 13.35 21.14 0.22 0.36
3 A1 1345 1345 4.10 24.34 0.04 0.08
4 A1 1055 1055 1.78 3.57 0.26 0.41
5 A1 1034 1034 16.15 7.72 0.11 0.19
6 A1 896 896 24.32 6.78 0.10 0.18
7 A2 922 922 0.00 0.08 0.75 0.86
8 A2 662 662 0.00 0.09 0.75 0.86
9 B1 868 868 38.87 0.06 0.75 0.86
10 B1 652 652 1.88 0.29 0.75 0.86
11 B2 3254 3254 0.22 57.32 0.75 0.86
12 B2 1584 1584 0.01 0.06 0.75 0.86
13 B2 1204 1204 4.20 0.59 0.75 0.86
14 B2 972 972 21.29 2.52 0.75 0.86
15 B2 848 848 3.06 0.39 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10006.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10006.6 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 B3LYP/daug-cc-pVTZ
ABC
0.35190 0.32566 0.16913

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.126
N2 0.000 1.129 0.352
N3 0.000 -1.129 0.352
C4 0.000 0.710 -0.878
C5 0.000 -0.710 -0.878
H6 0.000 1.402 -1.701
H7 0.000 -1.402 -1.701

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36871.36872.12542.12543.15573.1557
N21.36872.25851.29962.21242.07183.2598
N31.36872.25852.21241.29963.25982.0718
C42.12541.29962.21241.41931.07622.2668
C52.12542.21241.29961.41932.26681.0762
H63.15572.07183.25981.07622.26682.8044
H73.15573.25982.07182.26681.07622.8044

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.568 O1 N3 C5 105.568
N2 O1 N3 111.189 N2 C4 C5 108.838
N2 C4 H6 121.105 N3 C5 C4 108.838
N3 C5 H7 121.105 C4 C5 H7 130.057
C5 C4 H6 130.057
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.416      
2 N -0.739      
3 N -0.739      
4 C -0.003      
5 C -0.003      
6 H 0.950      
7 H 0.950      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.407 3.407
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.625 0.000 0.000
y 0.000 -30.355 0.000
z 0.000 0.000 -25.533
Traceless
 xyz
x -0.681 0.000 0.000
y 0.000 -3.276 0.000
z 0.000 0.000 3.957
Polar
3z2-r27.913
x2-y21.730
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.984 0.000 0.000
y 0.000 6.804 0.000
z 0.000 0.000 6.689


<r2> (average value of r2) Å2
<r2> 72.333
(<r2>)1/2 8.505