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

using model chemistry: LSDA/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1Ag
Energy calculated at LSDA/6-31+G**
 hartrees
Energy at 0K-408.199534
Energy at 298.15K-408.202869
Nuclear repulsion energy236.970344
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 LSDA/6-31+G**
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 1460 1438 0.00      
2 Ag 830 818 0.00      
3 Ag 302 298 0.00      
4 Au 92 91 0.00      
5 B1u 1337 1317 387.10      
6 B1u 739 728 210.99      
7 B2g 664 654 0.00      
8 B2u 1887 1859 586.39      
9 B2u 216 212 0.09      
10 B3g 1857 1829 0.00      
11 B3g 492 485 0.00      
12 B3u 416 410 12.67      

Unscaled Zero Point Vibrational Energy (zpe) 5146.1 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 5068.9 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 LSDA/6-31+G**
ABC
0.21622 0.12290 0.07836

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.886
N2 0.000 0.000 -0.886
O3 0.000 1.104 1.342
O4 0.000 -1.104 1.342
O5 0.000 1.104 -1.342
O6 0.000 -1.104 -1.342

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.77171.19441.19442.48622.4862
N21.77172.48622.48621.19441.1944
O31.19442.48622.20782.68363.4751
O41.19442.48622.20783.47512.6836
O52.48621.19442.68363.47512.2078
O62.48621.19443.47512.68362.2078

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 112.442 N1 N2 O6 112.442
N2 N1 O3 112.442 N2 N1 O4 112.442
O3 N1 O4 135.115 O5 N2 O6 135.115
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.011      
2 N 0.011      
3 O -0.006      
4 O -0.006      
5 O -0.006      
6 O -0.006      


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 -29.776 0.000 0.000
y 0.000 -36.250 0.000
z 0.000 0.000 -34.688
Traceless
 xyz
x 5.693 0.000 0.000
y 0.000 -4.018 0.000
z 0.000 0.000 -1.675
Polar
3z2-r2-3.350
x2-y26.474
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.755 0.000 0.000
y 0.000 7.178 0.000
z 0.000 0.000 7.641


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000