return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-72.116805
Energy at 298.15K 
HF Energy-72.116805
Nuclear repulsion energy30.137997
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 B3LYP/LANL2DZ
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 3461 3327 8.55      
2 A1 1253 1204 113.26      
3 A1 997 958 3508.72      
4 A1 411 395 39.93      
5 E 3627 3486 36.02      
5 E 3627 3486 36.01      
6 E 1696 1630 47.31      
6 E 1696 1630 47.31      
7 E 1330 1278 100.77      
7 E 1330 1278 100.77      
8 E 353 339 9.48      
8 E 353 339 9.48      

Unscaled Zero Point Vibrational Energy (zpe) 10066.1 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 9675.5 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 B3LYP/LANL2DZ
ABC
5.91005 0.16710 0.16710

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.763
Cl2 0.000 0.000 1.119
H3 0.000 0.971 -2.081
H4 0.841 -0.486 -2.081
H5 -0.841 -0.486 -2.081
H6 0.000 0.000 -0.432

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.88181.02211.02211.02211.3306
Cl22.88183.34433.34433.34431.5512
H31.02213.34431.68231.68231.9137
H41.02213.34431.68231.68231.9137
H51.02213.34431.68231.68231.9137
H61.33061.55121.91371.91371.9137

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 110.763
H3 N1 H5 110.763 H3 N1 H6 108.147
H4 N1 H5 110.763 H4 N1 H6 108.147
H5 N1 H6 108.147
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.819      
2 Cl -0.475      
3 H 0.357      
4 H 0.357      
5 H 0.357      
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 -7.761 7.761
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.871 0.000 0.000
y 0.000 -18.871 0.000
z 0.000 0.000 -14.497
Traceless
 xyz
x -2.187 0.000 0.000
y 0.000 -2.187 0.000
z 0.000 0.000 4.374
Polar
3z2-r28.748
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 1.375 0.000 0.000
y 0.000 1.375 0.000
z 0.000 0.000 4.930


<r2> (average value of r2) Å2
<r2> 57.409
(<r2>)1/2 7.577