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/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-27.258228
Energy at 298.15K 
HF Energy-27.258228
Nuclear repulsion energy22.967344
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/CEP-121G*
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 3493 3493 2.13      
2 A1 2161 2161 2282.74      
3 A1 1179 1179 145.52      
4 A1 212 212 43.03      
5 E 3635 3635 11.48      
5 E 3635 3635 11.42      
6 E 1715 1715 35.52      
6 E 1715 1715 35.55      
7 E 816 816 80.62      
7 E 816 816 80.59      
8 E 164 164 11.27      
8 E 164 164 11.28      

Unscaled Zero Point Vibrational Energy (zpe) 9853.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9853.6 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/CEP-121G*
ABC
6.19519 0.14954 0.14954

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.870
Cl2 0.000 0.000 1.176
H3 0.000 0.949 -2.239
H4 0.822 -0.474 -2.239
H5 -0.822 -0.474 -2.239
H6 0.000 0.000 -0.189

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N13.04661.01801.01801.01801.6818
Cl23.04663.54513.54513.54511.3649
H31.01803.54511.64321.64322.2597
H41.01803.54511.64321.64322.2597
H51.01803.54511.64321.64322.2597
H61.68181.36492.25972.25972.2597

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 107.622
H3 N1 H5 107.622 H3 N1 H6 111.263
H4 N1 H5 107.622 H4 N1 H6 111.263
H5 N1 H6 111.263
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.975      
2 Cl -0.390      
3 H 0.359      
4 H 0.359      
5 H 0.359      
6 H 0.287      


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 -5.445 5.445
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.443 0.000 0.000
y 0.000 -19.443 0.000
z 0.000 0.000 -14.201
Traceless
 xyz
x -2.621 0.000 0.000
y 0.000 -2.621 0.000
z 0.000 0.000 5.242
Polar
3z2-r210.484
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 2.594 0.000 0.000
y 0.000 2.593 0.001
z 0.000 0.001 5.002


<r2> (average value of r2) Å2
<r2> 56.010
(<r2>)1/2 7.484