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All results from a given calculation for HNO3 (Nitric acid)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-279.214167
Energy at 298.15K 
HF Energy-279.214167
Nuclear repulsion energy121.815218
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 mPW1PW91/3-21G
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' 3481 3322 48.54 60.79 0.33 0.50
2 A' 1576 1504 120.17 0.89 0.73 0.84
3 A' 1247 1190 154.37 6.61 0.62 0.76
4 A' 1182 1129 198.19 3.59 0.29 0.45
5 A' 873 834 79.46 11.75 0.12 0.22
6 A' 613 585 0.42 6.83 0.54 0.70
7 A' 508 485 12.84 2.69 0.73 0.84
8 A" 690 659 16.90 0.10 0.75 0.86
9 A" 489 467 156.34 6.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5329.4 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 5087.5 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 mPW1PW91/3-21G
ABC
0.40348 0.37551 0.19449

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.165 0.000
O2 -0.305 -1.272 0.000
O3 1.226 0.440 0.000
O4 -0.999 0.893 0.000
H5 0.622 -1.649 0.000

Atom - Atom Distances (Å)
  N1 O2 O3 O4 H5
N11.46901.25611.23621.9174
O21.46902.29622.27390.9999
O31.25612.29622.27022.1744
O41.23622.27392.27023.0147
H51.91740.99992.17443.0147

picture of Nitric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H5 100.171 O2 N1 O3 114.610
O2 N1 O4 114.133 O3 N1 O4 131.258
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.520      
2 O -0.368      
3 O -0.292      
4 O -0.256      
5 H 0.396      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.282 -1.874 0.000 2.271
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.031 -2.684 0.000
y -2.684 -20.108 0.000
z 0.000 0.000 -20.552
Traceless
 xyz
x -3.701 -2.684 0.000
y -2.684 2.184 0.000
z 0.000 0.000 1.518
Polar
3z2-r23.035
x2-y2-3.923
xy-2.684
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.528 -0.428 0.000
y -0.428 3.211 0.000
z 0.000 0.000 0.658


<r2> (average value of r2) Å2
<r2> 58.383
(<r2>)1/2 7.641