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

using model chemistry: mPW1PW91/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 mPW1PW91/TZVP
 hartrees
Energy at 0K-517.417721
Energy at 298.15K 
HF Energy-517.417721
Nuclear repulsion energy50.147773
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/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 3516 3354 2.60      
2 A1 2018 1925 2561.52      
3 A1 1129 1077 133.13      
4 A1 214 204 54.48      
5 E 3648 3480 21.49      
5 E 3648 3480 21.49      
6 E 1669 1592 29.56      
6 E 1669 1592 29.56      
7 E 918 876 57.17      
7 E 918 876 57.17      
8 E 272 260 16.93      
8 E 272 260 16.93      

Unscaled Zero Point Vibrational Energy (zpe) 9945.8 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 9488.3 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/TZVP
ABC
6.22261 0.15325 0.15325

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.848
Cl2 0.000 0.000 1.162
H3 0.000 0.947 -2.206
H4 0.820 -0.473 -2.206
H5 -0.820 -0.473 -2.206
H6 0.000 0.000 -0.200

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N13.01041.01201.01201.01201.6483
Cl23.01043.49893.49893.49891.3621
H31.01203.49891.63951.63952.2184
H41.01203.49891.63951.63952.2184
H51.01203.49891.63951.63952.2184
H61.64831.36212.21842.21842.2184

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 108.199
H3 N1 H5 108.199 H3 N1 H6 110.715
H4 N1 H5 108.199 H4 N1 H6 110.715
H5 N1 H6 110.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.621      
2 Cl -0.361      
3 H 0.241      
4 H 0.241      
5 H 0.241      
6 H 0.258      


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 -5.411 5.411
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.028 0.000 0.000
y 0.000 -20.028 0.000
z 0.000 0.000 -15.283
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 2.538 0.000 0.000
y 0.000 2.538 0.000
z 0.000 0.000 5.126


<r2> (average value of r2) Å2
<r2> 75.725
(<r2>)1/2 8.702