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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-513.954892
Energy at 298.15K 
HF Energy-513.778179
Nuclear repulsion energy50.412618
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 3417 3216 24.31      
2 A1 1564 1472 3898.51      
3 A1 1422 1339 115.48      
4 A1 389 366 151.72      
5 E 3529 3322 64.01      
5 E 3529 3322 64.01      
6 E 1779 1674 12.34      
6 E 1779 1674 12.34      
7 E 1606 1512 142.09      
7 E 1606 1512 142.09      
8 E 362 341 3.02      
8 E 362 341 3.02      

Unscaled Zero Point Vibrational Energy (zpe) 10672.4 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 10046.0 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
5.88574 0.16157 0.16157

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 -1.784
Cl2 0.000 0.000 1.143
H3 0.000 0.973 -2.108
H4 0.843 -0.487 -2.108
H5 -0.843 -0.487 -2.108
H6 0.000 0.000 -0.618

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N12.92751.02581.02581.02581.1667
Cl22.92753.39403.39403.39401.7608
H31.02583.39401.68581.68581.7803
H41.02583.39401.68581.68581.7803
H51.02583.39401.68581.68581.7803
H61.16671.76081.78031.78031.7803

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 110.511
H3 N1 H5 110.511 H3 N1 H6 108.410
H4 N1 H5 110.511 H4 N1 H6 108.410
H5 N1 H6 108.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability