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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B3LYP/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-48.190939
Energy at 298.15K 
HF Energy-48.190939
Nuclear repulsion energy83.756790
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3274 3161 0.01 87.77 0.15 0.27
2 A1 1454 1404 10.90 18.42 0.28 0.43
3 A1 1337 1291 4.74 15.01 0.19 0.32
4 A1 1050 1014 2.28 5.50 0.19 0.32
5 A1 1023 988 21.84 8.93 0.24 0.39
6 A1 887 856 25.58 5.57 0.23 0.37
7 A2 884 854 0.00 0.20 0.75 0.86
8 A2 637 615 0.00 0.41 0.75 0.86
9 B1 851 822 54.83 0.94 0.75 0.86
10 B1 623 602 0.45 1.02 0.75 0.86
11 B2 3254 3142 0.02 52.06 0.75 0.86
12 B2 1570 1516 0.00 0.45 0.75 0.86
13 B2 1181 1140 5.67 0.57 0.75 0.86
14 B2 937 905 17.84 7.33 0.75 0.86
15 B2 884 854 4.37 0.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9922.8 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 9582.5 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/CEP-31G*
ABC
0.34316 0.31434 0.16406

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.137
N2 0.000 1.148 0.359
N3 0.000 -1.148 0.359
C4 0.000 0.725 -0.891
C5 0.000 -0.725 -0.891
H6 0.000 1.432 -1.719
H7 0.000 -1.432 -1.719

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38661.38662.15352.15353.19473.1947
N21.38662.29551.31942.25132.09723.3122
N31.38662.29552.25131.31943.31222.0972
C42.15351.31942.25131.44951.08882.3099
C52.15352.25131.31941.44952.30991.0888
H63.19472.09723.31221.08882.30992.8632
H73.19473.31222.09722.30991.08882.8632

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.437 O1 N3 C5 105.437
N2 O1 N3 111.731 N2 C4 C5 108.697
N2 C4 H6 120.821 N3 C5 C4 108.697
N3 C5 H7 120.821 C4 C5 H7 130.481
C5 C4 H6 130.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.080      
2 N 0.127      
3 N 0.127      
4 C -0.397      
5 C -0.397      
6 H 0.310      
7 H 0.310      


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 -3.615 3.615
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.384 0.000 0.000
y 0.000 -29.613 0.000
z 0.000 0.000 -24.987
Traceless
 xyz
x -1.084 0.000 0.000
y 0.000 -2.927 0.000
z 0.000 0.000 4.011
Polar
3z2-r28.022
x2-y21.229
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.733 0.000 0.000
y 0.000 6.009 0.000
z 0.000 0.000 5.922


<r2> (average value of r2) Å2
<r2> 60.055
(<r2>)1/2 7.749