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

using model chemistry: CCSD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at CCSD/TZVP
 hartrees
Energy at 0K-96.110105
Energy at 298.15K-96.117291
HF Energy-95.715143
Nuclear repulsion energy47.490307
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 CCSD/TZVP
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 3105 2963 50.15      
2 A1 2899 2767 2.37      
3 A1 1417 1353 38.01      
4 A1 1332 1271 267.96      
5 A1 939 896 42.56      
6 A2 315 301 0.00      
7 E 3205 3059 1.46      
7 E 3205 3059 1.46      
8 E 2615 2496 3513.73      
8 E 2615 2496 3513.73      
9 E 1518 1448 0.07      
9 E 1518 1448 0.07      
10 E 1425 1360 23.78      
10 E 1425 1360 23.78      
11 E 1252 1195 24.35      
11 E 1252 1195 24.35      
12 E 890 849 101.12      
12 E 890 849 101.12      

Unscaled Zero Point Vibrational Energy (zpe) 15908.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 15183.5 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 CCSD/TZVP
ABC
2.73510 0.67100 0.67100

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/TZVP

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 0.706
H3 0.000 -1.034 -1.133
H4 -0.896 0.517 -1.133
H5 0.896 0.517 -1.133
H6 0.000 0.984 1.083
H7 -0.853 -0.492 1.083
H8 0.853 -0.492 1.083

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50381.08701.08701.08702.12272.12272.1227
N21.50382.10972.10972.10971.05411.05411.0541
H31.08702.10971.79111.79112.99732.43512.4351
H41.08702.10971.79111.79112.43512.43512.9973
H51.08702.10971.79111.79112.43512.99732.4351
H62.12271.05412.99732.43512.43511.70511.7051
H72.12271.05412.43512.43512.99731.70511.7051
H82.12271.05412.43512.99732.43511.70511.7051

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 110.944 C1 N2 H7 110.944
C1 N2 H8 110.944 N2 C1 H3 107.954
N2 C1 H4 107.954 N2 C1 H5 107.954
H3 C1 H4 110.945 H3 C1 H5 110.945
H4 C1 H5 110.945 H6 N2 H7 107.959
H6 N2 H8 107.959 H7 N2 H8 107.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability