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

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-510.620709
Energy at 298.15K 
HF Energy-510.620709
Nuclear repulsion energy51.600409
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/STO-3G
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 3884 3171 2.25 56.82 0.02 0.05
2 A1 2259 1845 4101.95 59.93 0.39 0.56
3 A1 1473 1203 33.60 1.34 0.52 0.69
4 A1 395 322 98.90 1.50 0.27 0.43
5 E 4144 3383 12.95 30.47 0.75 0.86
5 E 4144 3383 12.95 30.47 0.75 0.86
6 E 1989 1624 9.44 15.28 0.75 0.86
6 E 1989 1624 9.44 15.28 0.75 0.86
7 E 1323 1080 146.23 0.56 0.75 0.86
7 E 1323 1080 146.23 0.56 0.75 0.86
8 E 420 343 14.75 7.38 0.75 0.86
8 E 420 343 14.75 7.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11881.0 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 9700.8 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/STO-3G
ABC
6.09545 0.16984 0.16984

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.739
Cl2 0.000 0.000 1.108
H3 0.000 0.956 -2.122
H4 0.828 -0.478 -2.122
H5 -0.828 -0.478 -2.122
H6 0.000 0.000 -0.303

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.84691.03041.03041.03041.4355
Cl22.84693.36903.36903.36901.4114
H31.03043.36901.65651.65652.0551
H41.03043.36901.65651.65652.0551
H51.03043.36901.65651.65652.0551
H61.43551.41142.05512.05512.0551

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 106.993
H3 N1 H5 106.993 H3 N1 H6 111.848
H4 N1 H5 106.993 H4 N1 H6 111.848
H5 N1 H6 111.848
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.433      
2 Cl -0.466      
3 H 0.214      
4 H 0.214      
5 H 0.214      
6 H 0.258      


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 -6.930 6.930
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.100 0.000 0.000
y 0.000 -18.100 0.000
z 0.000 0.000 -13.106
Traceless
 xyz
x -2.497 0.000 0.000
y 0.000 -2.497 0.000
z 0.000 0.000 4.993
Polar
3z2-r29.987
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 0.809 0.000 0.000
y 0.000 0.809 0.000
z 0.000 0.000 2.228


<r2> (average value of r2) Å2
<r2> 68.651
(<r2>)1/2 8.286