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: CCD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-516.817674
Energy at 298.15K 
HF Energy-516.335964
Nuclear repulsion energy48.781282
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 CCD/aug-cc-pVTZ
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 3507 3356 0.00      
2 A1 2544 2434 1408.88      
3 A1 1131 1082 138.06      
4 A1 170 163 18.39      
5 E 3637 3480 14.90      
5 E 3637 3480 14.90      
6 E 1686 1613 19.46      
6 E 1686 1613 19.46      
7 E 713 682 34.25      
7 E 713 682 34.25      
8 E 211 202 16.91      
8 E 211 202 16.91      

Unscaled Zero Point Vibrational Energy (zpe) 9921.9 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9495.2 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 CCD/aug-cc-pVTZ
ABC
6.30249 0.13928 0.13928

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.945
Cl2 0.000 0.000 1.216
H3 0.000 0.941 -2.319
H4 0.815 -0.470 -2.319
H5 -0.815 -0.470 -2.319
H6 0.000 0.000 -0.094

Atom - Atom Distances (Å)
  N1 Cl2 H3 H4 H5 H6
N13.16121.01201.01201.01201.8516
Cl23.16123.65763.65763.65761.3096
H31.01203.65761.62911.62912.4157
H41.01203.65761.62911.62912.4157
H51.01203.65761.62911.62912.4157
H61.85161.30962.41572.41572.4157

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 107.203
H3 N1 H5 107.203 H3 N1 H6 111.654
H4 N1 H5 107.203 H4 N1 H6 111.654
H5 N1 H6 111.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability