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

using model chemistry: B1B95/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 B1B95/STO-3G
 hartrees
Energy at 0K-404.509692
Energy at 298.15K-404.512102
Nuclear repulsion energy221.275388
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 B1B95/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 1352 1194 0.00      
2 Ag 746 659 0.00      
3 Ag 253 223 0.00      
4 Au 76 68 0.00      
5 B1u 1298 1146 145.39      
6 B1u 622 549 104.15      
7 B2g 521 460 0.00      
8 B2u 1761 1555 67.91      
9 B2u 86 76 0.17      
10 B3g 1784 1575 0.00      
11 B3g 414 366 0.00      
12 B3u 316 279 1.87      

Unscaled Zero Point Vibrational Energy (zpe) 4615.2 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 4075.2 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 B1B95/STO-3G
ABC
0.19035 0.10661 0.06834

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.932
N2 0.000 0.000 -0.932
O3 0.000 1.177 1.446
O4 0.000 -1.177 1.446
O5 0.000 1.177 -1.446
O6 0.000 -1.177 -1.446

Atom - Atom Distances (Å)
  N1 N2 O3 O4 O5 O6
N11.86341.28411.28412.65302.6530
N21.86342.65302.65301.28411.2841
O31.28412.65302.35312.89243.7286
O41.28412.65302.35313.72862.8924
O52.65301.28412.89243.72862.3531
O62.65301.28413.72862.89242.3531

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 113.619 N1 N2 O6 113.619
N2 N1 O3 113.619 N2 N1 O4 113.619
O3 N1 O4 132.762 O5 N2 O6 132.762
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.129      
2 N 0.129      
3 O -0.065      
4 O -0.065      
5 O -0.065      
6 O -0.065      


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 -26.165 0.000 0.000
y 0.000 -31.538 0.000
z 0.000 0.000 -29.249
Traceless
 xyz
x 4.229 0.000 0.000
y 0.000 -3.831 0.000
z 0.000 0.000 -0.398
Polar
3z2-r2-0.796
x2-y25.373
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.694 0.000 0.000
y 0.000 4.501 0.000
z 0.000 0.000 5.305


<r2> (average value of r2) Å2
<r2> 141.478
(<r2>)1/2 11.894