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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B2PLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/TZVP
 hartrees
Energy at 0K-261.904102
Energy at 298.15K 
HF Energy-261.624280
Nuclear repulsion energy163.297874
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 B2PLYP/TZVP
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 3307 3156 1.13 103.02 0.10 0.18
2 A1 1440 1375 19.98 18.21 0.39 0.56
3 A1 1340 1279 1.94 21.48 0.04 0.07
4 A1 1072 1023 0.59 4.25 0.24 0.39
5 A1 1025 978 13.89 6.15 0.27 0.42
6 A1 886 846 25.92 8.60 0.13 0.23
7 A2 838 799 0.00 1.31 0.75 0.86
8 A2 629 600 0.00 0.00 0.75 0.86
9 B1 849 810 43.46 0.09 0.75 0.86
10 B1 638 609 1.27 0.26 0.75 0.86
11 B2 3293 3143 0.53 54.88 0.75 0.86
12 B2 1562 1491 0.14 0.02 0.75 0.86
13 B2 1209 1154 6.15 0.55 0.75 0.86
14 B2 964 920 17.56 4.46 0.75 0.86
15 B2 828 790 2.73 0.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9939.4 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 9486.2 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 B2PLYP/TZVP
ABC
0.34979 0.32361 0.16809

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.129
N2 0.000 1.136 0.353
N3 0.000 -1.136 0.353
C4 0.000 0.708 -0.881
C5 0.000 -0.708 -0.881
H6 0.000 1.401 -1.704
H7 0.000 -1.401 -1.704

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37521.37522.13082.13083.16003.1600
N21.37522.27121.30632.21842.07403.2655
N31.37522.27122.21841.30633.26552.0740
C42.13081.30632.21841.41561.07562.2632
C52.13082.21841.30631.41562.26321.0756
H63.16002.07403.26551.07562.26322.8011
H73.16003.26552.07402.26321.07562.8011

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.216 O1 N3 C5 105.216
N2 O1 N3 111.334 N2 C4 C5 109.117
N2 C4 H6 120.787 N3 C5 C4 109.117
N3 C5 H7 120.787 C4 C5 H7 130.096
C5 C4 H6 130.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.015      
2 N -0.027      
3 N -0.027      
4 C -0.121      
5 C -0.121      
6 H 0.155      
7 H 0.155      


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 -3.507 3.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.720 0.000 0.000
y 0.000 -30.514 0.000
z 0.000 0.000 -25.869
Traceless
 xyz
x -0.528 0.000 0.000
y 0.000 -3.219 0.000
z 0.000 0.000 3.747
Polar
3z2-r27.494
x2-y21.794
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.327 0.000 0.000
y 0.000 6.211 0.000
z 0.000 0.000 6.205


<r2> (average value of r2) Å2
<r2> 72.763
(<r2>)1/2 8.530