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

using model chemistry: CISD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at CISD/Def2TZVPP
 hartrees
Energy at 0K-96.129280
Energy at 298.15K-96.136483
HF Energy-95.723100
Nuclear repulsion energy47.902735
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 CISD/Def2TZVPP
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 3158 3158 50.71      
2 A1 3022 3022 0.74      
3 A1 1443 1443 23.41      
4 A1 1340 1340 316.13      
5 A1 986 986 46.81      
6 A2 310 310 0.00      
7 E 3255 3255 0.36      
7 E 3255 3255 0.36      
8 E 2752 2752 3589.99      
8 E 2752 2752 3590.00      
9 E 1551 1551 1.52      
9 E 1551 1551 1.52      
10 E 1493 1493 48.50      
10 E 1493 1493 48.50      
11 E 1275 1275 9.95      
11 E 1275 1275 9.95      
12 E 901 901 129.78      
12 E 901 901 129.78      

Unscaled Zero Point Vibrational Energy (zpe) 16356.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16356.0 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 CISD/Def2TZVPP
ABC
2.79192 0.68172 0.68172

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/Def2TZVPP

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 0.699
H3 0.000 -1.027 -1.127
H4 -0.889 0.513 -1.127
H5 0.889 0.513 -1.127
H6 0.000 0.971 1.077
H7 -0.841 -0.485 1.077
H8 0.841 -0.485 1.077

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49051.08051.08051.08052.10552.10552.1055
N21.49052.09552.09552.09551.04191.04191.0419
H31.08052.09551.77851.77852.97512.42082.4208
H41.08052.09551.77851.77852.42082.42082.9751
H51.08052.09551.77851.77852.42082.97512.4208
H62.10551.04192.97512.42082.42081.68171.6817
H72.10551.04192.42082.42082.97511.68171.6817
H82.10551.04192.42082.97512.42081.68171.6817

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 111.263 C1 N2 H7 111.263
C1 N2 H8 111.263 N2 C1 H3 108.134
N2 C1 H4 108.134 N2 C1 H5 108.134
H3 C1 H4 110.774 H3 C1 H5 110.774
H4 C1 H5 110.774 H6 N2 H7 107.622
H6 N2 H8 107.622 H7 N2 H8 107.622
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability