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

using model chemistry: MP2=FULL/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-96.020296
Energy at 298.15K-96.027400
HF Energy-95.663607
Nuclear repulsion energy47.131488
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/cc-pVDZ
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 3118 2963 51.05      
2 A1 2710 2575 60.88      
3 A1 1341 1274 100.12      
4 A1 1178 1120 116.27      
5 A1 924 878 52.87      
6 A2 312 297 0.00      
7 E 3241 3080 11.05      
7 E 3241 3080 11.05      
8 E 2395 2276 1568.16      
8 E 2395 2276 1568.16      
9 E 1482 1409 8.15      
9 E 1482 1409 8.15      
10 E 1286 1222 1.57      
10 E 1286 1222 1.57      
11 E 1139 1083 116.94      
11 E 1139 1083 116.94      
12 E 854 811 47.14      
12 E 854 811 47.14      

Unscaled Zero Point Vibrational Energy (zpe) 15188.8 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 14435.4 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/cc-pVDZ
ABC
2.63261 0.67051 0.67051

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.796
N2 0.000 0.000 0.706
H3 0.000 -1.045 -1.131
H4 -0.905 0.522 -1.131
H5 0.905 0.522 -1.131
H6 0.000 1.013 1.076
H7 -0.877 -0.507 1.076
H8 0.877 -0.507 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50131.09741.09741.09742.12852.12852.1285
N21.50132.11322.11322.11321.07871.07871.0787
H31.09742.11321.80971.80973.01792.43562.4356
H41.09742.11321.80971.80972.43562.43563.0179
H51.09742.11321.80971.80972.43563.01792.4356
H62.12851.07873.01792.43562.43561.75461.7546
H72.12851.07872.43562.43563.01791.75461.7546
H82.12851.07872.43563.01792.43561.75461.7546

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 110.098 C1 N2 H7 110.098
C1 N2 H8 110.098 N2 C1 H3 107.801
N2 C1 H4 107.801 N2 C1 H5 107.801
H3 C1 H4 111.089 H3 C1 H5 111.089
H4 C1 H5 111.089 H6 N2 H7 108.837
H6 N2 H8 108.837 H7 N2 H8 108.837
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability