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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PBE1PBE/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 PBE1PBE/TZVP
 hartrees
Energy at 0K-261.842078
Energy at 298.15K 
HF Energy-261.842078
Nuclear repulsion energy164.765885
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/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 3298 3165 1.48 99.19 0.10 0.17
2 A1 1483 1423 13.27 22.27 0.25 0.40
3 A1 1367 1312 4.42 18.15 0.07 0.13
4 A1 1076 1032 15.66 4.03 0.74 0.85
5 A1 1067 1024 9.89 7.80 0.10 0.18
6 A1 932 894 26.00 5.27 0.13 0.24
7 A2 891 855 0.00 1.39 0.75 0.86
8 A2 656 630 0.00 0.02 0.75 0.86
9 B1 867 832 44.07 0.11 0.75 0.86
10 B1 664 637 1.20 0.34 0.75 0.86
11 B2 3285 3152 0.69 53.65 0.75 0.86
12 B2 1612 1547 0.04 0.16 0.75 0.86
13 B2 1209 1160 5.74 0.66 0.75 0.86
14 B2 976 937 16.43 4.73 0.75 0.86
15 B2 920 883 7.15 0.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10151.0 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 9740.9 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/TZVP
ABC
0.35534 0.32993 0.17108

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.115
N2 0.000 1.120 0.356
N3 0.000 -1.120 0.356
C4 0.000 0.707 -0.875
C5 0.000 -0.707 -0.875
H6 0.000 1.406 -1.696
H7 0.000 -1.406 -1.696

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35271.35272.11192.11193.14313.1431
N21.35272.23921.29812.20282.07193.2541
N31.35272.23922.20281.29813.25412.0719
C42.11191.29812.20281.41451.07822.2671
C52.11192.20281.29811.41452.26711.0782
H63.14312.07193.25411.07822.26712.8119
H73.14313.25412.07192.26711.07822.8119

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.615 O1 N3 C5 105.615
N2 O1 N3 111.727 N2 C4 C5 108.521
N2 C4 H6 121.086 N3 C5 C4 108.521
N3 C5 H7 121.086 C4 C5 H7 130.392
C5 C4 H6 130.392
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.001      
2 N -0.020      
3 N -0.020      
4 C -0.136      
5 C -0.136      
6 H 0.156      
7 H 0.156      


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 -3.422 3.422
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.415 0.000 0.000
y 0.000 -30.096 0.000
z 0.000 0.000 -25.469
Traceless
 xyz
x -0.632 0.000 0.000
y 0.000 -3.154 0.000
z 0.000 0.000 3.786
Polar
3z2-r27.572
x2-y21.681
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.289 0.000 0.000
y 0.000 6.076 0.000
z 0.000 0.000 6.112


<r2> (average value of r2) Å2
<r2> 71.648
(<r2>)1/2 8.464