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All results from a given calculation for CH3NH3 (methyl ammonium radical)

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-96.080110
Energy at 298.15K-96.087324
HF Energy-95.707921
Nuclear repulsion energy47.834864
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 MP3/6-31+G**
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 3168 2948 38.81      
2 A1 3135 2917 22.68      
3 A1 1463 1361 51.54      
4 A1 1413 1315 437.52      
5 A1 996 927 50.31      
6 A2 311 289 0.00      
7 E 3277 3049 4.13      
7 E 3277 3049 4.12      
8 E 3113 2897 815.44      
8 E 3113 2897 815.44      
9 E 1571 1462 69.98      
9 E 1571 1462 69.98      
10 E 1539 1432 6.97      
10 E 1539 1432 6.97      
11 E 1285 1196 1.75      
11 E 1285 1196 1.75      
12 E 905 842 44.35      
12 E 905 842 44.35      

Unscaled Zero Point Vibrational Energy (zpe) 16932.8 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 15756.0 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 MP3/6-31+G**
ABC
2.79497 0.67820 0.67820

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.793
N2 0.000 0.000 0.701
H3 0.000 -1.030 -1.132
H4 -0.892 0.515 -1.132
H5 0.892 0.515 -1.132
H6 0.000 0.966 1.082
H7 -0.837 -0.483 1.082
H8 0.837 -0.483 1.082

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49371.08461.08461.08462.10952.10952.1095
N21.49372.10292.10292.10291.03891.03891.0389
H31.08462.10291.78411.78412.98182.43002.4300
H41.08462.10291.78411.78412.43002.43002.9818
H51.08462.10291.78411.78412.43002.98182.4300
H62.10951.03892.98182.43002.43001.67381.6738
H72.10951.03892.43002.43002.98181.67381.6738
H82.10951.03892.43002.98182.43001.67381.6738

picture of methyl ammonium radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 111.539 C1 N2 H7 111.539
C1 N2 H8 111.539 N2 C1 H3 108.250
N2 C1 H4 108.250 N2 C1 H5 108.250
H3 C1 H4 110.664 H3 C1 H5 110.664
H4 C1 H5 110.664 H6 N2 H7 107.326
H6 N2 H8 107.326 H7 N2 H8 107.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability