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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PBEPBEultrafine/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/cc-pVDZ
 hartrees
Energy at 0K-261.790890
Energy at 298.15K 
HF Energy-261.790890
Nuclear repulsion energy162.112893
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 PBEPBEultrafine/cc-pVDZ
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 3210 3192 0.79 103.60 0.10 0.19
2 A1 1418 1409 12.24 13.78 0.41 0.58
3 A1 1300 1292 3.18 15.26 0.11 0.20
4 A1 1032 1026 5.01 8.11 0.57 0.72
5 A1 1006 1000 9.18 6.59 0.15 0.26
6 A1 873 868 19.10 6.35 0.12 0.21
7 A2 862 857 0.00 1.65 0.75 0.86
8 A2 639 636 0.00 0.40 0.75 0.86
9 B1 819 814 33.29 1.09 0.75 0.86
10 B1 641 638 0.88 0.37 0.75 0.86
11 B2 3195 3176 0.21 63.29 0.75 0.86
12 B2 1520 1512 0.00 0.00 0.75 0.86
13 B2 1134 1127 5.78 0.85 0.75 0.86
14 B2 935 929 18.77 5.00 0.75 0.86
15 B2 773 768 7.40 0.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9678.1 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 9621.9 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 PBEPBEultrafine/cc-pVDZ
ABC
0.34487 0.31897 0.16571

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.132
N2 0.000 1.143 0.361
N3 0.000 -1.143 0.361
C4 0.000 0.712 -0.888
C5 0.000 -0.712 -0.888
H6 0.000 1.421 -1.723
H7 0.000 -1.421 -1.723

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37871.37872.14182.14183.18873.1887
N21.37872.28621.32122.23682.10223.3041
N31.37872.28622.23681.32123.30412.1022
C42.14181.32122.23681.42491.09492.2910
C52.14182.23681.32121.42492.29101.0949
H63.18872.10223.30411.09492.29102.8422
H73.18873.30412.10222.29101.09492.8422

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.967 O1 N3 C5 104.967
N2 O1 N3 112.020 N2 C4 C5 109.023
N2 C4 H6 120.647 N3 C5 C4 109.023
N3 C5 H7 120.647 C4 C5 H7 130.330
C5 C4 H6 130.330
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.062      
2 N -0.063      
3 N -0.063      
4 C 0.063      
5 C 0.063      
6 H 0.031      
7 H 0.031      


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 -3.020 3.020
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.152 0.000 0.000
y 0.000 -29.337 0.000
z 0.000 0.000 -25.238
Traceless
 xyz
x -0.865 0.000 0.000
y 0.000 -2.642 0.000
z 0.000 0.000 3.507
Polar
3z2-r27.014
x2-y21.185
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.475 0.000 0.000
y 0.000 5.916 0.000
z 0.000 0.000 5.845


<r2> (average value of r2) Å2
<r2> 73.119
(<r2>)1/2 8.551