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: TPSSh/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 TPSSh/cc-pVDZ
 hartrees
Energy at 0K-517.395923
Energy at 298.15K 
HF Energy-517.395923
Nuclear repulsion energy49.674938
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 TPSSh/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 3423 3328 2.00      
2 A1 2093 2035 2436.22      
3 A1 1153 1121 45.31      
4 A1 238 232 40.39      
5 E 3550 3452 11.61      
5 E 3550 3452 11.62      
6 E 1666 1620 15.11      
6 E 1666 1620 15.10      
7 E 893 869 50.30      
7 E 893 869 50.28      
8 E 254 247 17.42      
8 E 254 247 17.41      

Unscaled Zero Point Vibrational Energy (zpe) 9816.4 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 9545.5 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 TPSSh/cc-pVDZ
ABC
6.20712 0.15048 0.15048

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.859
Cl2 0.000 0.000 1.174
H3 0.000 0.948 -2.249
H4 0.821 -0.474 -2.249
H5 -0.821 -0.474 -2.249
H6 0.000 0.000 -0.195

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N13.03251.02491.02491.02491.6634
Cl23.03253.55133.55133.55131.3691
H31.02493.55131.64161.64162.2616
H41.02493.55131.64161.64162.2616
H51.02493.55131.64161.64162.2616
H61.66341.36912.26162.26162.2616

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 106.427
H3 N1 H5 106.427 H3 N1 H6 112.367
H4 N1 H5 106.427 H4 N1 H6 112.367
H5 N1 H6 112.367
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.184      
2 Cl -0.368      
3 H 0.116      
4 H 0.116      
5 H 0.116      
6 H 0.205      


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 -5.489 5.489
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.311 0.000 0.000
y 0.000 2.311 0.000
z 0.000 0.000 4.759


<r2> (average value of r2) Å2
<r2> 76.726
(<r2>)1/2 8.759