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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-517.082668
Energy at 298.15K 
HF Energy-517.082668
Nuclear repulsion energy50.194622
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 PBEPBEultrafine/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 3390 3334 5.05      
2 A1 1693 1665 2660.36      
3 A1 1150 1131 24.40      
4 A1 270 266 59.54      
5 E 3530 3472 18.48      
5 E 3530 3472 18.48      
6 E 1661 1634 26.84      
6 E 1661 1634 26.84      
7 E 991 975 73.89      
7 E 991 975 73.89      
8 E 292 287 16.18      
8 E 292 287 16.18      

Unscaled Zero Point Vibrational Energy (zpe) 9725.5 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 9565.1 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 PBEPBEultrafine/6-31G*
ABC
6.08844 0.15632 0.15632

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.823
Cl2 0.000 0.000 1.153
H3 0.000 0.957 -2.193
H4 0.829 -0.478 -2.193
H5 -0.829 -0.478 -2.193
H6 0.000 0.000 -0.255

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.97621.02571.02571.02571.5687
Cl22.97623.47953.47953.47951.4075
H31.02573.47951.65751.65752.1613
H41.02573.47951.65751.65752.1613
H51.02573.47951.65751.65752.1613
H61.56871.40752.16132.16132.1613

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 107.802
H3 N1 H5 107.802 H3 N1 H6 111.093
H4 N1 H5 107.801 H4 N1 H6 111.093
H5 N1 H6 111.093
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.887      
2 Cl -0.389      
3 H 0.351      
4 H 0.351      
5 H 0.351      
6 H 0.224      


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 -6.208 6.208
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.051 0.000 0.000
y 0.000 -20.051 0.000
z 0.000 0.000 -14.363
Traceless
 xyz
x -2.844 0.000 0.000
y 0.000 -2.844 0.000
z 0.000 0.000 5.688
Polar
3z2-r211.376
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 2.241 0.000 0.000
y 0.000 2.241 0.000
z 0.000 0.000 4.906


<r2> (average value of r2) Å2
<r2> 74.438
(<r2>)1/2 8.628