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

using model chemistry: QCISD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD/TZVP
 hartrees
Energy at 0K-516.704148
Energy at 298.15K 
HF Energy-516.320067
Nuclear repulsion energy48.499688
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 QCISD/TZVP
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 3502 3346 0.06      
2 A1 2607 2490 1160.29      
3 A1 1184 1131 138.39      
4 A1 172 164 14.40      
5 E 3629 3466 6.44      
5 E 3629 3466 6.44      
6 E 1667 1592 21.24      
6 E 1667 1592 21.24      
7 E 708 676 72.51      
7 E 708 676 72.51      
8 E 221 211 18.61      
8 E 221 211 18.61      

Unscaled Zero Point Vibrational Energy (zpe) 9956.2 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 9511.2 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 QCISD/TZVP
ABC
6.31391 0.13700 0.13700

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.961
Cl2 0.000 0.000 1.226
H3 0.000 0.940 -2.343
H4 0.814 -0.470 -2.343
H5 -0.814 -0.470 -2.343
H6 0.000 0.000 -0.083

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N13.18671.01431.01431.01431.8779
Cl23.18673.69023.69023.69021.3088
H31.01433.69021.62761.62762.4473
H41.01433.69021.62761.62762.4473
H51.01433.69021.62761.62762.4473
H61.87791.30882.44732.44732.4473

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 106.704
H3 N1 H5 106.704 H3 N1 H6 112.114
H4 N1 H5 106.704 H4 N1 H6 112.114
H5 N1 H6 112.114
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability