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 NH4Cl (Ammonium chloride)

using model chemistry: wB97X-D/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/STO-3G
 hartrees
Energy at 0K-511.598268
Energy at 298.15K 
HF Energy-511.598268
Nuclear repulsion energy51.215236
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 wB97X-D/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 A1 3591 3591 0.72      
2 A1 2210 2210 3399.70      
3 A1 1326 1326 7.83      
4 A1 449 449 26.15      
5 E 3843 3843 8.65      
5 E 3843 3843 8.66      
6 E 1842 1842 10.65      
6 E 1842 1842 10.62      
7 E 1281 1281 115.79      
7 E 1281 1281 115.72      
8 E 368 368 16.98      
8 E 368 368 16.99      

Unscaled Zero Point Vibrational Energy (zpe) 11121.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11121.2 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 wB97X-D/STO-3G
ABC
5.89303 0.16904 0.16904

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.739
Cl2 0.000 0.000 1.112
H3 0.000 0.973 -2.132
H4 0.842 -0.486 -2.132
H5 -0.842 -0.486 -2.132
H6 0.000 0.000 -0.340

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.85061.04921.04921.04921.3981
Cl22.85063.38663.38663.38661.4525
H31.04923.38661.68481.68482.0384
H41.04923.38661.68481.68482.0384
H51.04923.38661.68481.68482.0384
H61.39811.45252.03842.03842.0384

picture of Ammonium chloride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 H6 Cl2 180.000 H3 N1 H4 106.813
H3 N1 H5 106.813 H3 N1 H6 112.014
H4 N1 H5 106.813 H4 N1 H6 112.014
H5 N1 H6 112.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.416      
2 Cl -0.475      
3 H 0.227      
4 H 0.227      
5 H 0.227      
6 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -7.397 7.397
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.975 0.000 0.000
y 0.000 -17.975 0.000
z 0.000 0.000 -12.165
Traceless
 xyz
x -2.905 0.000 0.000
y 0.000 -2.905 0.000
z 0.000 0.000 5.810
Polar
3z2-r211.620
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.823 0.000 0.000
y 0.000 0.823 -0.000
z 0.000 -0.000 2.392


<r2> (average value of r2) Å2
<r2> 68.788
(<r2>)1/2 8.294