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

using model chemistry: MP3/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 MP3/cc-pVDZ
 hartrees
Energy at 0K-96.041299
Energy at 298.15K-96.048414
HF Energy-95.663679
Nuclear repulsion energy47.130127
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/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 3115 2952 45.56      
2 A1 2738 2596 60.26      
3 A1 1356 1285 92.30      
4 A1 1205 1143 109.11      
5 A1 938 889 56.75      
6 A2 308 292 0.00      
7 E 3223 3055 9.45      
7 E 3223 3055 9.45      
8 E 2341 2219 2178.07      
8 E 2341 2219 2178.08      
9 E 1485 1408 7.74      
9 E 1485 1408 7.74      
10 E 1302 1234 3.51      
10 E 1302 1234 3.51      
11 E 1157 1097 143.18      
11 E 1157 1097 143.18      
12 E 861 816 60.63      
12 E 861 816 60.63      

Unscaled Zero Point Vibrational Energy (zpe) 15198.9 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 14407.1 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 MP3/cc-pVDZ
ABC
2.63485 0.67008 0.67008

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.795
N2 0.000 0.000 0.706
H3 0.000 -1.046 -1.134
H4 -0.906 0.523 -1.134
H5 0.906 0.523 -1.134
H6 0.000 1.011 1.076
H7 -0.876 -0.506 1.076
H8 0.876 -0.506 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50151.09911.09911.09912.12712.12712.1271
N21.50152.11622.11622.11621.07671.07671.0767
H31.09912.11621.81121.81123.01892.43742.4374
H41.09912.11621.81121.81122.43742.43743.0189
H51.09912.11621.81121.81122.43743.01892.4374
H62.12711.07673.01892.43742.43741.75151.7515
H72.12711.07672.43742.43743.01891.75151.7515
H82.12711.07672.43743.01892.43741.75151.7515

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 110.089 C1 N2 H7 110.089
C1 N2 H8 110.089 N2 C1 H3 107.927
N2 C1 H4 107.927 N2 C1 H5 107.927
H3 C1 H4 110.970 H3 C1 H5 110.970
H4 C1 H5 110.970 H6 N2 H7 108.847
H6 N2 H8 108.847 H7 N2 H8 108.847
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability