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

using model chemistry: PBEPBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/TZVP
 hartrees
Energy at 0K-517.148045
Energy at 298.15K 
HF Energy-517.148045
Nuclear repulsion energy50.083562
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 PBEPBE/TZVP
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 3396 3358 1.23      
2 A1 1832 1812 2668.51      
3 A1 1098 1086 81.57      
4 A1 235 232 57.97      
5 E 3526 3487 18.89      
5 E 3526 3487 18.90      
6 E 1616 1598 28.35      
6 E 1616 1598 28.35      
7 E 936 926 47.16      
7 E 936 926 47.16      
8 E 266 263 15.68      
8 E 266 263 15.68      

Unscaled Zero Point Vibrational Energy (zpe) 9625.0 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 9517.2 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 PBEPBE/TZVP
ABC
6.11029 0.15451 0.15451

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.837
Cl2 0.000 0.000 1.159
H3 0.000 0.955 -2.201
H4 0.827 -0.478 -2.201
H5 -0.827 -0.478 -2.201
H6 0.000 0.000 -0.231

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.99581.02211.02211.02211.6059
Cl22.99583.49263.49263.49261.3899
H31.02213.49261.65451.65452.1890
H41.02213.49261.65451.65452.1890
H51.02213.49261.65451.65452.1890
H61.60591.38992.18902.18902.1890

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 108.070
H3 N1 H5 108.070 H3 N1 H6 110.839
H4 N1 H5 108.070 H4 N1 H6 110.839
H5 N1 H6 110.839
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.591      
2 Cl -0.370      
3 H 0.241      
4 H 0.241      
5 H 0.241      
6 H 0.239      


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 -5.675 5.675
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.218 0.000 0.000
y 0.000 -20.218 0.000
z 0.000 0.000 -15.311
Traceless
 xyz
x -2.453 0.000 0.000
y 0.000 -2.453 0.000
z 0.000 0.000 4.906
Polar
3z2-r29.813
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 2.632 0.000 0.000
y 0.000 2.632 0.000
z 0.000 0.000 5.575


<r2> (average value of r2) Å2
<r2> 75.375
(<r2>)1/2 8.682