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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-261.966946
Energy at 298.15K 
HF Energy-261.966946
Nuclear repulsion energy163.964151
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/cc-pVDZ
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 3293 3177 1.10      
2 A1 1478 1426 11.18      
3 A1 1354 1307 4.24      
4 A1 1066 1029 17.07      
5 A1 1055 1018 4.81      
6 A1 923 891 22.13      
7 A2 906 874 0.00      
8 A2 663 640 0.00      
9 B1 857 827 34.65      
10 B1 664 641 1.03      
11 B2 3277 3163 0.34      
12 B2 1597 1541 0.00      
13 B2 1184 1143 5.22      
14 B2 971 937 19.16      
15 B2 906 874 7.41      

Unscaled Zero Point Vibrational Energy (zpe) 10096.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 9743.4 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/cc-pVDZ
ABC
0.35196 0.32673 0.16944

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.117
N2 0.000 1.125 0.360
N3 0.000 -1.125 0.360
C4 0.000 0.710 -0.880
C5 0.000 -0.710 -0.880
H6 0.000 1.416 -1.707
H7 0.000 -1.416 -1.707

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35651.35652.12002.12003.15933.1593
N21.35652.25021.30752.21482.08683.2753
N31.35652.25022.21481.30753.27532.0868
C42.12001.30752.21481.42011.08702.2811
C52.12002.21481.30751.42012.28111.0870
H63.15932.08683.27531.08702.28112.8322
H73.15933.27532.08682.28111.08702.8322

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.449 O1 N3 C5 105.449
N2 O1 N3 112.085 N2 C4 C5 108.509
N2 C4 H6 120.987 N3 C5 C4 108.509
N3 C5 H7 120.987 C4 C5 H7 130.504
C5 C4 H6 130.504
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.080      
2 N -0.066      
3 N -0.066      
4 C 0.054      
5 C 0.054      
6 H 0.052      
7 H 0.052      


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 -3.212 3.212
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.066 0.000 0.000
y 0.000 -29.292 0.000
z 0.000 0.000 -25.102
Traceless
 xyz
x -0.868 0.000 0.000
y 0.000 -2.709 0.000
z 0.000 0.000 3.577
Polar
3z2-r27.154
x2-y21.227
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.454 0.000 0.000
y 0.000 5.624 0.000
z 0.000 0.000 5.676


<r2> (average value of r2) Å2
<r2> 71.873
(<r2>)1/2 8.478