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

using model chemistry: PBE1PBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/6-31G
 hartrees
Energy at 0K-517.105381
Energy at 298.15K 
HF Energy-517.105381
Nuclear repulsion energy51.456126
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 PBE1PBE/6-31G
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 3500 3345 17.43      
2 A1 1311 1253 228.58      
3 A1 1076 1029 3857.39      
4 A1 451 431 6.66      
5 E 3663 3502 58.94      
5 E 3663 3502 58.94      
6 E 1724 1648 48.01      
6 E 1724 1648 48.01      
7 E 1451 1387 102.03      
7 E 1451 1387 102.03      
8 E 384 367 8.10      
8 E 384 367 8.10      

Unscaled Zero Point Vibrational Energy (zpe) 10390.8 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 9932.6 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 PBE1PBE/6-31G
ABC
5.95348 0.16957 0.16957

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.749
Cl2 0.000 0.000 1.112
H3 0.000 0.968 -2.060
H4 0.838 -0.484 -2.060
H5 -0.838 -0.484 -2.060
H6 0.000 0.000 -0.485

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.86051.01651.01651.01651.2631
Cl22.86053.31593.31593.31591.5974
H31.01653.31591.67621.67621.8479
H41.01653.31591.67621.67621.8479
H51.01653.31591.67621.67621.8479
H61.26311.59741.84791.84791.8479

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 111.070
H3 N1 H5 111.070 H3 N1 H6 107.820
H4 N1 H5 111.070 H4 N1 H6 107.820
H5 N1 H6 107.820
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.881      
2 Cl -0.502      
3 H 0.386      
4 H 0.386      
5 H 0.386      
6 H 0.223      


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 -8.616 8.616
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.014 0.000 0.000
y 0.000 -20.014 0.000
z 0.000 0.000 -14.755
Traceless
 xyz
x -2.629 0.000 0.000
y 0.000 -2.629 0.000
z 0.000 0.000 5.259
Polar
3z2-r210.518
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 1.701 0.000 0.000
y 0.000 1.701 0.000
z 0.000 0.000 4.512


<r2> (average value of r2) Å2
<r2> 69.598
(<r2>)1/2 8.343