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

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-514.904571
Energy at 298.15K 
HF Energy-514.904571
Nuclear repulsion energy51.322572
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 B3PW91/3-21G*
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 3415 3276 11.30      
2 A1 1238 1188 3114.52      
3 A1 1191 1142 416.23      
4 A1 407 390 47.21      
5 E 3560 3416 35.58      
5 E 3560 3416 35.58      
6 E 1725 1655 34.02      
6 E 1725 1655 34.02      
7 E 1303 1250 92.26      
7 E 1303 1250 92.26      
8 E 367 352 11.70      
8 E 367 352 11.70      

Unscaled Zero Point Vibrational Energy (zpe) 10079.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9670.4 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 B3PW91/3-21G*
ABC
5.87216 0.16797 0.16797

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.762
Cl2 0.000 0.000 1.114
H3 0.000 0.974 -2.077
H4 0.844 -0.487 -2.077
H5 -0.844 -0.487 -2.077
H6 0.000 0.000 -0.365

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.87571.02401.02401.02401.3972
Cl22.87573.33593.33593.33591.4786
H31.02403.33591.68771.68771.9697
H41.02403.33591.68771.68771.9697
H51.02403.33591.68771.68771.9697
H61.39721.47861.96971.96971.9697

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 111.000
H3 N1 H5 111.000 H3 N1 H6 107.896
H4 N1 H5 111.000 H4 N1 H6 107.896
H5 N1 H6 107.896
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.806      
2 Cl -0.528      
3 H 0.349      
4 H 0.349      
5 H 0.349      
6 H 0.288      


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 -7.437 7.437
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.759 0.000 0.000
y 0.000 -19.759 0.000
z 0.000 0.000 -14.122
Traceless
 xyz
x -2.819 0.000 0.000
y 0.000 -2.819 0.000
z 0.000 0.000 5.637
Polar
3z2-r211.274
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 1.928 0.000 0.000
y 0.000 1.928 0.000
z 0.000 0.000 4.181


<r2> (average value of r2) Å2
<r2> 69.906
(<r2>)1/2 8.361