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

using model chemistry: MP2=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-96.205247
Energy at 298.15K-96.212398
HF Energy-95.748310
Nuclear repulsion energy47.905013
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 MP2=FULL/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 3123 2971 68.53      
2 A1 3065 2916 147.45      
3 A1 1427 1358 1.99      
4 A1 1382 1314 736.18      
5 A1 984 937 58.26      
6 A2 268 255 0.00      
7 E 3219 3062 0.30      
7 E 3219 3062 0.30      
8 E 3012 2865 2954.60      
8 E 3012 2865 2954.60      
9 E 1533 1458 126.44      
9 E 1533 1458 126.44      
10 E 1522 1448 0.05      
10 E 1522 1448 0.05      
11 E 1261 1200 0.00      
11 E 1261 1200 0.00      
12 E 887 844 112.47      
12 E 887 844 112.47      

Unscaled Zero Point Vibrational Energy (zpe) 16556.5 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 15751.8 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 MP2=FULL/aug-cc-pVTZ
ABC
2.79772 0.68081 0.68081

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.792
N2 0.000 0.000 0.700
H3 0.000 -1.029 -1.129
H4 -0.891 0.514 -1.129
H5 0.891 0.514 -1.129
H6 0.000 0.967 1.079
H7 -0.837 -0.483 1.079
H8 0.837 -0.483 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49141.08251.08251.08252.10592.10592.1059
N21.49142.09782.09782.09781.03861.03861.0386
H31.08252.09781.78181.78182.97592.42332.4233
H41.08252.09781.78181.78182.42332.42332.9759
H51.08252.09781.78181.78182.42332.97592.4233
H62.10591.03862.97592.42332.42331.67451.6745
H72.10591.03862.42332.42332.97591.67451.6745
H82.10591.03862.42332.97592.42331.67451.6745

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 111.432 C1 N2 H7 111.432
C1 N2 H8 111.432 N2 C1 H3 108.133
N2 C1 H4 108.133 N2 C1 H5 108.133
H3 C1 H4 110.776 H3 C1 H5 110.776
H4 C1 H5 110.776 H6 N2 H7 107.441
H6 N2 H8 107.441 H7 N2 H8 107.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability