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

using model chemistry: MP2=FULL/6-31G*

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/6-31G*
 hartrees
Energy at 0K-95.958787
Energy at 298.15K-95.965832
HF Energy-95.630014
Nuclear repulsion energy47.012856
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/6-31G*
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 3146 2965 29.10      
2 A1 2582 2432 59.09      
3 A1 1376 1297 100.78      
4 A1 1162 1095 30.24      
5 A1 873 822 24.27      
6 A2 297 280 0.00      
7 E 3258 3069 11.87      
7 E 3258 3069 11.87      
8 E 2203 2076 1278.38      
8 E 2203 2076 1278.39      
9 E 1545 1455 7.08      
9 E 1545 1455 7.08      
10 E 1259 1186 3.68      
10 E 1259 1186 3.69      
11 E 1070 1008 186.05      
11 E 1070 1008 186.05      
12 E 872 822 20.19      
12 E 872 822 20.19      

Unscaled Zero Point Vibrational Energy (zpe) 14924.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 14062.1 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/6-31G*
ABC
2.61233 0.66787 0.66787

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.798
N2 0.000 0.000 0.709
H3 0.000 -1.036 -1.131
H4 -0.897 0.518 -1.131
H5 0.897 0.518 -1.131
H6 0.000 1.030 1.071
H7 -0.892 -0.515 1.071
H8 0.892 -0.515 1.071

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50711.08841.08841.08842.13372.13372.1337
N21.50712.11172.11172.11171.09151.09151.0915
H31.08842.11171.79481.79483.01922.43192.4319
H41.08842.11171.79481.79482.43192.43193.0192
H51.08842.11171.79481.79482.43193.01922.4319
H62.13371.09153.01922.43192.43191.78371.7837
H72.13371.09152.43192.43193.01921.78371.7837
H82.13371.09152.43193.01922.43191.78371.7837

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 109.347 C1 N2 H7 109.347
C1 N2 H8 109.347 N2 C1 H3 107.810
N2 C1 H4 107.810 N2 C1 H5 107.810
H3 C1 H4 111.081 H3 C1 H5 111.081
H4 C1 H5 111.081 H6 N2 H7 109.595
H6 N2 H8 109.595 H7 N2 H8 109.595
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability