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: B2PLYP/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B2PLYP/daug-cc-pVDZ
 hartrees
Energy at 0K-517.192087
Energy at 298.15K 
HF Energy-517.071385
Nuclear repulsion energy49.540304
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 B2PLYP/daug-cc-pVDZ
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 3471 3471 0.11      
2 A1 2135 2135 2306.74      
3 A1 1131 1131 106.62      
4 A1 196 196 43.14      
5 E 3608 3608 17.48      
5 E 3608 3608 17.48      
6 E 1646 1646 21.15      
6 E 1646 1646 21.15      
7 E 848 848 29.03      
7 E 848 848 29.03      
8 E 249 249 13.88      
8 E 249 249 13.88      

Unscaled Zero Point Vibrational Energy (zpe) 9817.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9817.2 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 B2PLYP/daug-cc-pVDZ
ABC
6.22576 0.14811 0.14811

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/daug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.879
Cl2 0.000 0.000 1.182
H3 0.000 0.946 -2.254
H4 0.820 -0.473 -2.254
H5 -0.820 -0.473 -2.254
H6 0.000 0.000 -0.172

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N13.06101.01791.01791.01791.7075
Cl23.06103.56393.56393.56391.3535
H31.01793.56391.63911.63912.2874
H41.01793.56391.63911.63912.2874
H51.01793.56391.63911.63912.2874
H61.70751.35352.28742.28742.2874

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 107.244
H3 N1 H5 107.244 H3 N1 H6 111.616
H4 N1 H5 107.244 H4 N1 H6 111.616
H5 N1 H6 111.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.829      
2 Cl 0.129      
3 H 0.173      
4 H 0.173      
5 H 0.173      
6 H 0.183      


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 -4.797 4.797
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.645 0.000 0.000
y 0.000 -20.645 0.000
z 0.000 0.000 -15.689
Traceless
 xyz
x -2.478 0.000 0.000
y 0.000 -2.478 0.000
z 0.000 0.000 4.956
Polar
3z2-r29.912
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 4.398 0.000 0.000
y 0.000 4.398 0.000
z 0.000 0.000 6.700


<r2> (average value of r2) Å2
<r2> 78.286
(<r2>)1/2 8.848