return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for N2O5 (Dinitrogen pentoxide)

using model chemistry: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-480.262509
Energy at 298.15K-480.266315
Nuclear repulsion energy308.083702
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/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 1583 1555 169.30      
2 A 1212 1190 33.38      
3 A 836 821 15.07      
4 A 712 700 0.38      
5 A 630 619 0.10      
6 A 376 369 0.01      
7 A 231 227 0.05      
8 A 57 56 0.14      
9 B 1528 1500 79.47      
10 B 1099 1079 333.13      
11 B 703 690 423.85      
12 B 652 640 12.78      
13 B 570 560 161.27      
14 B 350 343 39.51      
15 B 62 61 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 5300.7 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 5205.3 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/3-21G*
ABC
0.21134 0.06422 0.05205

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.884
N2 0.000 1.297 0.008
N3 0.000 -1.297 0.008
O4 0.383 2.243 0.701
O5 -0.383 -2.243 0.701
O6 -0.400 1.181 -1.150
O7 0.400 -1.181 -1.150

Atom - Atom Distances (Å)
  O1 N2 N3 O4 O5 O6 O7
O11.56461.56462.28292.28292.38612.3861
N21.56462.59301.23433.62721.23112.7642
N31.56462.59303.62721.23432.76421.2311
O42.28291.23433.62724.55122.27393.8929
O52.28293.62721.23434.55123.89292.2739
O62.38611.23112.76422.27393.89292.4943
O72.38612.76421.23113.89292.27392.4943

picture of Dinitrogen pentoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 O4 108.725 O1 N2 O6 116.683
O1 N3 O5 108.725 O1 N3 O7 116.683
N2 O1 N3 111.917 O4 N2 O6 134.541
O5 N3 O7 134.541
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.151      
2 N 0.474      
3 N 0.474      
4 O -0.193      
5 O -0.193      
6 O -0.206      
7 O -0.206      


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 -0.156 0.156
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.934 -0.992 0.000
y -0.992 -38.526 0.000
z 0.000 0.000 -39.805
Traceless
 xyz
x 4.232 -0.992 0.000
y -0.992 -1.157 0.000
z 0.000 0.000 -3.075
Polar
3z2-r2-6.150
x2-y23.592
xy-0.992
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.813 0.748 0.000
y 0.748 8.029 0.000
z 0.000 0.000 5.020


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