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

using model chemistry: HF/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 HF/TZVP
 hartrees
Energy at 0K-516.320868
Energy at 298.15K 
HF Energy-516.320868
Nuclear repulsion energy47.782517
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 HF/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3686 3349 1.40 108.63 0.03 0.06
2 A1 2790 2535 916.47 342.23 0.39 0.56
3 A1 1186 1077 214.66 0.47 0.45 0.62
4 A1 153 139 8.59 0.66 0.33 0.50
5 E 3810 3462 12.31 53.02 0.75 0.86
5 E 3810 3462 12.31 53.02 0.75 0.86
6 E 1793 1629 27.91 6.26 0.75 0.86
6 E 1793 1629 27.91 6.26 0.75 0.86
7 E 652 592 91.21 3.73 0.75 0.86
7 E 652 592 91.21 3.73 0.75 0.86
8 E 219 199 17.53 2.66 0.75 0.86
8 E 219 199 17.53 2.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10381.4 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 9432.5 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 HF/TZVP
ABC
6.37978 0.12886 0.12886

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -2.034
Cl2 0.000 0.000 1.261
H3 0.000 0.935 -2.390
H4 0.810 -0.467 -2.390
H5 -0.810 -0.467 -2.390
H6 0.000 0.000 -0.034

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N13.29511.00051.00051.00051.9998
Cl23.29513.76933.76933.76931.2952
H31.00053.76931.61921.61922.5350
H41.00053.76931.61921.61922.5350
H51.00053.76931.61921.61922.5350
H61.99981.29522.53502.53502.5350

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 108.034
H3 N1 H5 108.034 H3 N1 H6 110.873
H4 N1 H5 108.034 H4 N1 H6 110.873
H5 N1 H6 110.873
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.628      
2 Cl -0.284      
3 H 0.217      
4 H 0.217      
5 H 0.217      
6 H 0.260      


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 -4.300 4.300
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.116 0.000 0.000
y 0.000 -20.116 0.000
z 0.000 0.000 -15.358
Traceless
 xyz
x -2.379 0.000 0.000
y 0.000 -2.379 0.000
z 0.000 0.000 4.758
Polar
3z2-r29.516
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 2.453 0.000 0.000
y 0.000 2.453 0.000
z 0.000 0.000 4.095


<r2> (average value of r2) Å2
<r2> 87.334
(<r2>)1/2 9.345