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

using model chemistry: CISD/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CISD/3-21G*
 hartrees
Energy at 0K-514.136154
Energy at 298.15K 
HF Energy-513.876152
Nuclear repulsion energy50.580378
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 CISD/3-21G*
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 3454 3227 5.67      
2 A1 1740 1626 2667.99      
3 A1 1202 1123 261.68      
4 A1 260 243 86.65      
5 E 3588 3352 11.85      
5 E 3588 3352 11.85      
6 E 1789 1671 27.51      
6 E 1789 1671 27.51      
7 E 1104 1032 101.37      
7 E 1104 1032 101.37      
8 E 341 318 16.72      
8 E 341 318 16.72      

Unscaled Zero Point Vibrational Energy (zpe) 10149.1 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 9483.3 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 CISD/3-21G*
ABC
5.95809 0.15852 0.15852

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.821
Cl2 0.000 0.000 1.142
H3 0.000 0.967 -2.146
H4 0.838 -0.484 -2.146
H5 -0.838 -0.484 -2.146
H6 0.000 0.000 -0.231

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.96351.02041.02041.02041.5903
Cl22.96353.42773.42773.42771.3733
H31.02043.42771.67551.67552.1455
H41.02043.42771.67551.67552.1455
H51.02043.42771.67551.67552.1455
H61.59031.37332.14552.14552.1455

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 110.366
H3 N1 H5 110.366 H3 N1 H6 108.561
H4 N1 H5 110.366 H4 N1 H6 108.561
H5 N1 H6 108.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability