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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-517.160367
Energy at 298.15K 
HF Energy-517.160367
Nuclear repulsion energy50.094851
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/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 3398 3374 0.81      
2 A1 1873 1860 2613.18      
3 A1 1090 1082 60.04      
4 A1 231 229 54.94      
5 E 3525 3500 17.84      
5 E 3525 3500 17.84      
6 E 1614 1603 22.45      
6 E 1614 1603 22.45      
7 E 917 911 29.10      
7 E 917 911 29.10      
8 E 258 257 14.62      
8 E 258 257 14.62      

Unscaled Zero Point Vibrational Energy (zpe) 9609.2 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 9542.9 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/cc-pVTZ
ABC
6.14309 0.15428 0.15428

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.838
Cl2 0.000 0.000 1.159
H3 0.000 0.953 -2.206
H4 0.825 -0.476 -2.206
H5 -0.825 -0.476 -2.206
H6 0.000 0.000 -0.223

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.99751.02111.02111.02111.6156
Cl22.99753.49723.49723.49721.3819
H31.02113.49721.65011.65012.1999
H41.02113.49721.65011.65012.1999
H51.02113.49721.65011.65012.1999
H61.61561.38192.19992.19992.1999

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 107.809
H3 N1 H5 107.809 H3 N1 H6 111.087
H4 N1 H5 107.808 H4 N1 H6 111.087
H5 N1 H6 111.087
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.306      
2 Cl -0.376      
3 H 0.161      
4 H 0.161      
5 H 0.161      
6 H 0.198      


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 -5.400 5.400
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.183 0.000 0.000
y 0.000 -20.183 0.000
z 0.000 0.000 -15.052
Traceless
 xyz
x -2.565 0.000 0.000
y 0.000 -2.565 0.000
z 0.000 0.000 5.131
Polar
3z2-r210.262
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 3.197 0.000 0.000
y 0.000 3.197 0.000
z 0.000 0.000 5.921


<r2> (average value of r2) Å2
<r2> 75.405
(<r2>)1/2 8.684