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

using model chemistry: MP3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at MP3/6-311+G(3df,2p)
 hartrees
Energy at 0K-96.172581
Energy at 298.15K-96.179787
HF Energy-95.736771
Nuclear repulsion energy47.882934
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 MP3/6-311+G(3df,2p)
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 3112 3112 49.12      
2 A1 3101 3101 16.24      
3 A1 1436 1436 10.65      
4 A1 1378 1378 541.91      
5 A1 995 995 55.96      
6 A2 307 307 0.00      
7 E 3213 3213 2.61      
7 E 3213 3213 2.61      
8 E 3047 3047 1290.52      
8 E 3047 3047 1290.52      
9 E 1548 1548 85.64      
9 E 1548 1548 85.64      
10 E 1515 1515 5.76      
10 E 1515 1515 5.76      
11 E 1273 1273 1.77      
11 E 1273 1273 1.77      
12 E 898 898 88.80      
12 E 898 898 88.80      

Unscaled Zero Point Vibrational Energy (zpe) 16657.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16657.3 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 MP3/6-311+G(3df,2p)
ABC
2.79135 0.68041 0.68041

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.791
N2 0.000 0.000 0.701
H3 0.000 -1.031 -1.130
H4 -0.893 0.515 -1.130
H5 0.893 0.515 -1.130
H6 0.000 0.967 1.077
H7 -0.837 -0.483 1.077
H8 0.837 -0.483 1.077

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49191.08511.08511.08512.10362.10362.1036
N21.49192.10122.10122.10121.03761.03761.0376
H31.08512.10121.78531.78532.97712.42342.4234
H41.08512.10121.78531.78532.42342.42342.9771
H51.08512.10121.78531.78532.42342.97712.4234
H62.10361.03762.97712.42342.42341.67481.6748
H72.10361.03762.42342.42342.97711.67481.6748
H82.10361.03762.42342.97712.42341.67481.6748

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 111.267 C1 N2 H7 111.266
C1 N2 H8 111.266 N2 C1 H3 108.209
N2 C1 H4 108.209 N2 C1 H5 108.209
H3 C1 H4 110.703 H3 C1 H5 110.703
H4 C1 H5 110.703 H6 N2 H7 107.618
H6 N2 H8 107.618 H7 N2 H8 107.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability