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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-517.375412
Energy at 298.15K 
HF Energy-517.375412
Nuclear repulsion energy50.323721
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 mPW1PW91/6-31+G**
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 3530 3360 2.62      
2 A1 1982 1887 2681.13      
3 A1 1149 1093 144.62      
4 A1 219 208 61.60      
5 E 3676 3499 29.36      
5 E 3676 3499 29.36      
6 E 1676 1596 34.45      
6 E 1676 1596 34.45      
7 E 956 910 65.41      
7 E 956 910 65.41      
8 E 301 287 15.86      
8 E 301 287 15.86      

Unscaled Zero Point Vibrational Energy (zpe) 10049.6 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 9565.2 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 mPW1PW91/6-31+G**
ABC
6.19608 0.15506 0.15506

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

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 1.156
H3 0.000 0.949 -2.194
H4 0.822 -0.474 -2.194
H5 -0.822 -0.474 -2.194
H6 0.000 0.000 -0.207

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.99211.01371.01371.01371.6295
Cl22.99213.48123.48123.48121.3626
H31.01373.48121.64301.64302.2017
H41.01373.48121.64301.64302.2017
H51.01373.48121.64301.64302.2017
H61.62951.36262.20172.20172.2017

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 108.274
H3 N1 H5 108.274 H3 N1 H6 110.644
H4 N1 H5 108.274 H4 N1 H6 110.644
H5 N1 H6 110.644
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.934      
2 Cl -0.314      
3 H 0.344      
4 H 0.344      
5 H 0.344      
6 H 0.217      


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 -5.493 5.493
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.362 0.000 0.000
y 0.000 -20.362 0.000
z 0.000 0.000 -15.618
Traceless
 xyz
x -2.372 0.000 0.000
y 0.000 -2.372 0.000
z 0.000 0.000 4.744
Polar
3z2-r29.489
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 2.896 0.000 0.000
y 0.000 2.896 0.000
z 0.000 0.000 5.616


<r2> (average value of r2) Å2
<r2> 75.223
(<r2>)1/2 8.673