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 HNO3 (Nitric acid)

using model chemistry: mPW1PW91/STO-3G

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/STO-3G
 hartrees
Energy at 0K-276.988120
Energy at 298.15K 
HF Energy-276.988120
Nuclear repulsion energy118.111067
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/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 A' 3728 3276 11.64 39.71 0.30 0.46
2 A' 1775 1560 33.20 0.74 0.61 0.76
3 A' 1354 1190 60.56 9.28 0.59 0.74
4 A' 1339 1177 96.59 3.07 0.47 0.64
5 A' 951 836 34.73 9.45 0.12 0.22
6 A' 537 472 3.99 3.76 0.64 0.78
7 A' 439 386 6.89 1.92 0.67 0.80
8 A" 571 502 8.63 0.17 0.75 0.86
9 A" 487 428 68.88 6.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5590.3 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 4913.3 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 mPW1PW91/STO-3G
ABC
0.37797 0.35542 0.18317

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.158 0.000
O2 -0.317 -1.301 0.000
O3 1.271 0.436 0.000
O4 -1.036 0.931 0.000
H5 0.658 -1.638 0.000

Atom - Atom Distances (Å)
  N1 O2 O3 O4 H5
N11.49331.30101.29241.9128
O21.49332.35352.34471.0320
O31.30102.35352.35962.1622
O41.29242.34472.35963.0771
H51.91281.03202.16223.0771

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 96.780 O2 N1 O3 114.584
O2 N1 O4 114.449 O3 N1 O4 130.967
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.158      
2 O -0.139      
3 O -0.128      
4 O -0.101      
5 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.954 -1.509 0.000 1.785
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.164 -1.801 0.000
y -1.801 -18.459 0.000
z 0.000 0.000 -18.452
Traceless
 xyz
x -2.709 -1.801 0.000
y -1.801 1.349 0.000
z 0.000 0.000 1.360
Polar
3z2-r22.720
x2-y2-2.705
xy-1.801
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.693 -0.445 0.000
y -0.445 2.451 0.000
z 0.000 0.000 0.364


<r2> (average value of r2) Å2
<r2> 59.690
(<r2>)1/2 7.726