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All results from a given calculation for NH4Cl (Ammonium chloride)

using model chemistry: PBEPBEultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-517.163929
Energy at 298.15K 
HF Energy-517.163929
Nuclear repulsion energy50.226044
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 PBEPBEultrafine/aug-cc-pVTZ
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 3394 3356 0.24      
2 A1 1769 1749 2850.99      
3 A1 1091 1079 59.61      
4 A1 228 226 69.70      
5 E 3520 3480 22.22      
5 E 3520 3480 22.22      
6 E 1608 1590 22.97      
6 E 1608 1590 22.97      
7 E 939 929 20.97      
7 E 939 929 20.97      
8 E 270 267 11.04      
8 E 270 267 11.04      

Unscaled Zero Point Vibrational Energy (zpe) 9578.4 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 9471.1 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
6.13198 0.15569 0.15569

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.829
Cl2 0.000 0.000 1.154
H3 0.000 0.954 -2.195
H4 0.826 -0.477 -2.195
H5 -0.826 -0.477 -2.195
H6 0.000 0.000 -0.235

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.98361.02121.02121.02121.5941
Cl22.98363.48223.48223.48221.3895
H31.02123.48221.65161.65162.1793
H41.02123.48221.65161.65162.1793
H51.02123.48221.65161.65162.1793
H61.59411.38952.17932.17932.1793

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 107.928
H3 N1 H5 107.928 H3 N1 H6 110.974
H4 N1 H5 107.928 H4 N1 H6 110.974
H5 N1 H6 110.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.075      
2 Cl -0.356      
3 H 0.084      
4 H 0.084      
5 H 0.084      
6 H 0.177      


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 -5.298 5.298
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.570 0.000 0.000
y 0.000 -20.570 0.000
z 0.000 0.000 -15.589
Traceless
 xyz
x -2.490 0.000 0.000
y 0.000 -2.490 0.000
z 0.000 0.000 4.981
Polar
3z2-r29.962
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 4.520 0.000 0.000
y 0.000 4.520 0.000
z 0.000 0.000 7.307


<r2> (average value of r2) Å2
<r2> 75.120
(<r2>)1/2 8.667