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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B3PW91/STO-3G

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/STO-3G
 hartrees
Energy at 0K-258.594211
Energy at 298.15K 
HF Energy-258.594211
Nuclear repulsion energy157.679652
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/STO-3G
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 3532 3126 40.66 49.92 0.12 0.22
2 A1 1460 1293 28.77 12.46 0.70 0.82
3 A1 1334 1181 0.03 10.93 0.09 0.16
4 A1 1115 987 0.10 8.10 0.26 0.41
5 A1 1076 952 3.88 8.95 0.35 0.52
6 A1 927 821 1.92 1.40 0.17 0.29
7 A2 910 806 0.00 1.76 0.75 0.86
8 A2 641 567 0.00 0.41 0.75 0.86
9 B1 853 755 22.27 1.26 0.75 0.86
10 B1 590 522 1.15 0.25 0.75 0.86
11 B2 3511 3107 15.97 37.93 0.75 0.86
12 B2 1578 1396 14.77 0.00 0.75 0.86
13 B2 1220 1079 3.43 0.72 0.75 0.86
14 B2 1039 919 1.11 0.02 0.75 0.86
15 B2 956 846 9.91 5.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10370.9 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 9178.2 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 B3PW91/STO-3G
ABC
0.32491 0.30334 0.15688

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.171
N2 0.000 1.186 0.367
N3 0.000 -1.186 0.367
C4 0.000 0.714 -0.914
C5 0.000 -0.714 -0.914
H6 0.000 1.402 -1.767
H7 0.000 -1.402 -1.767

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.43251.43252.20412.20413.25573.2557
N21.43252.37131.36522.29152.14533.3544
N31.43252.37132.29151.36523.35442.1453
C42.20411.36522.29151.42841.09592.2818
C52.20412.29151.36521.42842.28181.0959
H63.25572.14533.35441.09592.28182.8043
H73.25573.35442.14532.28181.09592.8043

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 103.941 O1 N3 C5 103.941
N2 O1 N3 111.716 N2 C4 C5 110.201
N2 C4 H6 120.916 N3 C5 C4 110.201
N3 C5 H7 120.916 C4 C5 H7 128.883
C5 C4 H6 128.883
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.012      
2 N -0.093      
3 N -0.093      
4 C -0.036      
5 C -0.036      
6 H 0.123      
7 H 0.123      


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 -2.507 2.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.649 0.000 0.000
y 0.000 -28.265 0.000
z 0.000 0.000 -23.960
Traceless
 xyz
x 0.464 0.000 0.000
y 0.000 -3.460 0.000
z 0.000 0.000 2.997
Polar
3z2-r25.993
x2-y22.616
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.855 0.000 0.000
y 0.000 3.652 0.000
z 0.000 0.000 3.745


<r2> (average value of r2) Å2
<r2> 75.078
(<r2>)1/2 8.665