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

using model chemistry: MP3/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-96.168752
Energy at 298.15K-96.175917
HF Energy-95.722512
Nuclear repulsion energy47.682877
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/Def2TZVPP
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 3114 3114 58.25      
2 A1 2942 2942 4.16      
3 A1 1404 1404 30.74      
4 A1 1302 1302 291.98      
5 A1 963 963 43.32      
6 A2 301 301 0.00      
7 E 3213 3213 2.22      
7 E 3213 3213 2.22      
8 E 2694 2694 2299.91      
8 E 2694 2694 2299.92      
9 E 1518 1518 0.08      
9 E 1518 1518 0.08      
10 E 1446 1446 8.75      
10 E 1446 1446 8.75      
11 E 1245 1245 9.62      
11 E 1245 1245 9.62      
12 E 884 884 87.23      
12 E 884 884 87.23      

Unscaled Zero Point Vibrational Energy (zpe) 16011.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16011.2 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 MP3/Def2TZVPP
ABC
2.75676 0.67646 0.67646

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.794
N2 0.000 0.000 0.703
H3 0.000 -1.031 -1.130
H4 -0.893 0.516 -1.130
H5 0.893 0.516 -1.130
H6 0.000 0.979 1.078
H7 -0.848 -0.490 1.078
H8 0.848 -0.490 1.078

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49741.08431.08431.08432.11272.11272.1127
N21.49742.10292.10292.10291.04861.04861.0486
H31.08432.10291.78601.78602.98582.42592.4259
H41.08432.10291.78601.78602.42592.42592.9858
H51.08432.10291.78601.78602.42592.98582.4259
H62.11271.04862.98582.42592.42591.69641.6964
H72.11271.04862.42592.42592.98581.69641.6964
H82.11271.04862.42592.98582.42591.69641.6964

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 110.932 C1 N2 H7 110.932
C1 N2 H8 110.932 N2 C1 H3 108.015
N2 C1 H4 108.015 N2 C1 H5 108.015
H3 C1 H4 110.887 H3 C1 H5 110.887
H4 C1 H5 110.887 H6 N2 H7 107.972
H6 N2 H8 107.972 H7 N2 H8 107.972
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability