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All results from a given calculation for N2O4 (Dinitrogen tetroxide)

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-404.528995
Energy at 298.15K 
HF Energy-404.528995
Nuclear repulsion energy211.903476
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 BLYP/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 Ag 1255 1161 0.00 11.58 0.12 0.21
2 Ag 680 629 0.00 5.23 0.21 0.35
3 Ag 211 195 0.00 14.21 0.34 0.51
4 Au 54 50 0.00 0.00 0.00 0.00
5 B1u 1192 1102 114.91 0.00 0.00 0.00
6 B1u 578 535 82.85 0.00 0.00 0.00
7 B2g 408 378 0.00 0.01 0.75 0.86
8 B2u 1564 1447 36.58 0.00 0.00 0.00
9 B2u 56 52 0.02 0.00 0.00 0.00
10 B3g 1583 1464 0.00 10.43 0.75 0.86
11 B3g 330 306 0.00 6.82 0.75 0.86
12 B3u 244 225 0.05 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 4077.8 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 3772.8 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 BLYP/STO-3G
ABC
0.18279 0.09215 0.06127

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.009
N2 0.000 0.000 -1.009
O3 0.000 1.201 1.554
O4 0.000 -1.201 1.554
O5 0.000 1.201 -1.554
O6 0.000 -1.201 -1.554

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N12.01771.31841.31842.82982.8298
N22.01772.82982.82981.31841.3184
O31.31842.82982.40123.10723.9269
O41.31842.82982.40123.92693.1072
O52.82981.31843.10723.92692.4012
O62.82981.31843.92693.10722.4012

picture of Dinitrogen tetroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O5 114.404 N1 N2 O6 114.404
N2 N1 O3 114.404 N2 N1 O4 114.404
O3 N1 O4 131.191 O5 N2 O6 131.191
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.083      
2 N 0.083      
3 O -0.041      
4 O -0.041      
5 O -0.041      
6 O -0.041      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.249 0.000 0.000
y 0.000 -30.504 0.000
z 0.000 0.000 -28.176
Traceless
 xyz
x 3.091 0.000 0.000
y 0.000 -3.291 0.000
z 0.000 0.000 0.200
Polar
3z2-r20.400
x2-y24.255
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.729 0.000 0.000
y 0.000 4.627 0.000
z 0.000 0.000 6.228


<r2> (average value of r2) Å2
<r2> 155.296
(<r2>)1/2 12.462