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 HNO (Nitrosyl hydride)

using model chemistry: mPW1PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-130.484178
Energy at 298.15K 
HF Energy-130.484178
Nuclear repulsion energy30.721522
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 mPW1PW91/6-311+G(3df,2p)
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' 2934 2934 127.64 211.88 0.36 0.53
2 A' 1728 1728 81.35 14.58 0.66 0.80
3 A' 1580 1580 11.82 10.64 0.45 0.62

Unscaled Zero Point Vibrational Energy (zpe) 3121.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3121.1 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 mPW1PW91/6-311+G(3df,2p)
ABC
18.89359 1.45528 1.35121

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.939 0.916 0.000
N2 0.063 0.573 0.000
O3 0.063 -0.616 0.000

Atom - Atom Distances (Å)
  H1 N2 O3
H11.05851.8305
N21.05851.1897
O31.83051.1897

picture of Nitrosyl hydride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 N2 O3 108.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.128      
2 N 0.104      
3 O -0.232      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.409 0.900 0.000 1.672
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.144 -1.483 0.000
y -1.483 -11.895 0.000
z 0.000 0.000 -10.579
Traceless
 xyz
x 0.093 -1.483 0.000
y -1.483 -1.034 0.000
z 0.000 0.000 0.940
Polar
3z2-r21.881
x2-y20.751
xy-1.483
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.097 -0.337 0.000
y -0.337 2.606 0.000
z 0.000 0.000 1.447


<r2> (average value of r2) Å2
<r2> 14.118
(<r2>)1/2 3.757