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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-261.946606
Energy at 298.15K 
HF Energy-261.946606
Nuclear repulsion energy163.903393
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 B3PW91/6-31G*
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 3311 3168 0.32      
2 A1 1483 1419 10.97      
3 A1 1364 1305 3.83      
4 A1 1076 1029 1.68      
5 A1 1060 1014 20.10      
6 A1 929 888 20.39      
7 A2 901 862 0.00      
8 A2 661 633 0.00      
9 B1 860 823 36.65      
10 B1 660 632 0.90      
11 B2 3297 3155 0.01      
12 B2 1607 1537 0.11      
13 B2 1210 1158 4.87      
14 B2 972 930 17.44      
15 B2 918 878 8.39      

Unscaled Zero Point Vibrational Energy (zpe) 10154.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9715.1 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 B3PW91/6-31G*
ABC
0.35193 0.32628 0.16931

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.120
N2 0.000 1.127 0.358
N3 0.000 -1.127 0.358
C4 0.000 0.709 -0.880
C5 0.000 -0.709 -0.880
H6 0.000 1.408 -1.704
H7 0.000 -1.408 -1.704

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36071.36072.12142.12143.15553.1555
N21.36072.25481.30622.21462.08123.2680
N31.36072.25482.21461.30623.26802.0812
C42.12141.30622.21461.41851.08082.2720
C52.12142.21461.30621.41852.27201.0808
H63.15552.08123.26801.08082.27202.8155
H73.15553.26802.08122.27201.08082.8155

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.379 O1 N3 C5 105.379
N2 O1 N3 111.899 N2 C4 C5 108.672
N2 C4 H6 121.066 N3 C5 C4 108.672
N3 C5 H7 121.066 C4 C5 H7 130.262
C5 C4 H6 130.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.194      
2 N -0.102      
3 N -0.102      
4 C -0.019      
5 C -0.019      
6 H 0.218      
7 H 0.218      


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 -3.334 3.334
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.048 0.000 0.000
y 0.000 -29.288 0.000
z 0.000 0.000 -24.917
Traceless
 xyz
x -0.945 0.000 0.000
y 0.000 -2.805 0.000
z 0.000 0.000 3.750
Polar
3z2-r27.501
x2-y21.240
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.314 0.000 0.000
y 0.000 5.584 0.000
z 0.000 0.000 5.645


<r2> (average value of r2) Å2
<r2> 71.837
(<r2>)1/2 8.476