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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PBE1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-261.778788
Energy at 298.15K 
HF Energy-261.778788
Nuclear repulsion energy164.828103
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 PBE1PBE/6-31G(2df,p)
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 3308 3165 0.55 86.01 0.10 0.18
2 A1 1485 1421 10.72 16.65 0.30 0.46
3 A1 1370 1311 4.66 13.88 0.12 0.22
4 A1 1087 1041 23.98 6.91 0.28 0.44
5 A1 1075 1029 0.03 6.52 0.22 0.36
6 A1 946 905 16.94 3.88 0.10 0.18
7 A2 921 881 0.00 1.29 0.75 0.86
8 A2 671 643 0.00 0.32 0.75 0.86
9 B1 875 837 31.54 0.68 0.75 0.86
10 B1 675 646 1.54 0.51 0.75 0.86
11 B2 3293 3151 0.24 54.08 0.75 0.86
12 B2 1611 1542 0.13 0.09 0.75 0.86
13 B2 1208 1156 4.16 0.84 0.75 0.86
14 B2 984 942 8.84 4.09 0.75 0.86
15 B2 959 918 19.94 0.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10233.8 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9793.7 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 PBE1PBE/6-31G(2df,p)
ABC
0.35479 0.33085 0.17120

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.112
N2 0.000 1.117 0.359
N3 0.000 -1.117 0.359
C4 0.000 0.707 -0.877
C5 0.000 -0.707 -0.877
H6 0.000 1.409 -1.697
H7 0.000 -1.409 -1.697

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.34741.34742.11172.11173.14313.1431
N21.34742.23401.30232.20372.07683.2569
N31.34742.23402.20371.30233.25692.0768
C42.11171.30232.20371.41471.07912.2695
C52.11172.20371.30231.41472.26951.0791
H63.14312.07683.25691.07912.26952.8176
H73.14313.25692.07682.26951.07912.8176

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.668 O1 N3 C5 105.668
N2 O1 N3 111.995 N2 C4 C5 108.334
N2 C4 H6 121.120 N3 C5 C4 108.334
N3 C5 H7 121.120 C4 C5 H7 130.545
C5 C4 H6 130.545
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.169      
2 N -0.044      
3 N -0.044      
4 C -0.051      
5 C -0.051      
6 H 0.180      
7 H 0.180      


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 -3.163 3.163
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.915 0.000 0.000
y 0.000 -29.156 0.000
z 0.000 0.000 -24.668
Traceless
 xyz
x -1.003 0.000 0.000
y 0.000 -2.865 0.000
z 0.000 0.000 3.868
Polar
3z2-r27.736
x2-y21.241
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.774 0.000 0.000
y 0.000 5.727 0.000
z 0.000 0.000 5.761


<r2> (average value of r2) Å2
<r2> 71.158
(<r2>)1/2 8.436