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

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-26.704975
Energy at 298.15K 
HF Energy-26.704975
Nuclear repulsion energy22.275502
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/CEP-121G*
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 3685 3329 1.73 106.13 0.04 0.08
2 A1 2777 2509 862.28 374.46 0.36 0.53
3 A1 1273 1150 194.40 0.35 0.75 0.86
4 A1 162 146 7.84 0.54 0.40 0.57
5 E 3810 3442 5.28 61.45 0.75 0.86
5 E 3810 3442 5.28 61.45 0.75 0.86
6 E 1848 1669 32.61 7.15 0.75 0.86
6 E 1848 1669 32.61 7.15 0.75 0.86
7 E 656 593 102.26 1.66 0.75 0.86
7 E 656 593 102.26 1.66 0.75 0.86
8 E 222 201 18.32 2.05 0.75 0.86
8 E 222 201 18.32 2.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10484.2 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 9471.4 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 HF/CEP-121G*
ABC
6.39814 0.12944 0.12944

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -2.025
Cl2 0.000 0.000 1.259
H3 0.000 0.934 -2.397
H4 0.808 -0.467 -2.397
H5 -0.808 -0.467 -2.397
H6 0.000 0.000 -0.040

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N13.28431.00481.00481.00481.9849
Cl23.28433.77343.77343.77341.2994
H31.00483.77341.61691.61692.5349
H41.00483.77341.61691.61692.5349
H51.00483.77341.61691.61692.5349
H61.98491.29942.53492.53492.5349

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 107.132
H3 N1 H5 107.132 H3 N1 H6 111.720
H4 N1 H5 107.132 H4 N1 H6 111.720
H5 N1 H6 111.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -1.033      
2 Cl -0.369      
3 H 0.355      
4 H 0.355      
5 H 0.355      
6 H 0.336      


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 -4.477 4.477
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.535 0.000 0.000
y 0.000 -19.535 0.000
z 0.000 0.000 -14.320
Traceless
 xyz
x -2.607 0.000 0.000
y 0.000 -2.607 0.000
z 0.000 0.000 5.215
Polar
3z2-r210.430
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 2.495 0.000 0.000
y 0.000 2.495 0.000
z 0.000 0.000 4.058


<r2> (average value of r2) Å2
<r2> 62.571
(<r2>)1/2 7.910