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

using model chemistry: CISD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-96.123849
Energy at 298.15K-96.131041
HF Energy-95.716067
Nuclear repulsion energy47.880143
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/cc-pVTZ
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 3155 2934 48.54      
2 A1 3003 2792 19.04      
3 A1 1437 1336 37.08      
4 A1 1326 1233 282.70      
5 A1 989 920 51.54      
6 A2 302 280 0.00      
7 E 3251 3023 0.79      
7 E 3251 3023 0.79      
8 E 2680 2492 4009.41      
8 E 2680 2492 4009.41      
9 E 1541 1433 0.18      
9 E 1541 1433 0.18      
10 E 1478 1374 15.95      
10 E 1478 1374 15.95      
11 E 1273 1184 23.45      
11 E 1273 1184 23.45      
12 E 892 830 133.52      
12 E 892 830 133.53      

Unscaled Zero Point Vibrational Energy (zpe) 16220.8 cm-1
Scaled (by 0.9298) Zero Point Vibrational Energy (zpe) 15082.1 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 CISD/cc-pVTZ
ABC
2.78088 0.68222 0.68222

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

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 -1.126
H4 -0.890 0.514 -1.126
H5 0.890 0.514 -1.126
H6 0.000 0.975 1.075
H7 -0.844 -0.487 1.075
H8 0.844 -0.487 1.075

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49011.08061.08061.08062.10492.10492.1049
N21.49012.09472.09472.09471.04441.04441.0444
H31.08062.09471.77931.77932.97522.41842.4184
H41.08062.09471.77931.77932.41842.41842.9752
H51.08062.09471.77931.77932.41842.97522.4184
H62.10491.04442.97522.41842.41841.68791.6879
H72.10491.04442.41842.41842.97521.68791.6879
H82.10491.04442.41842.97522.41841.68791.6879

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 111.079 C1 N2 H7 111.079
C1 N2 H8 111.079 N2 C1 H3 108.081
N2 C1 H4 108.081 N2 C1 H5 108.081
H3 C1 H4 110.825 H3 C1 H5 110.825
H4 C1 H5 110.825 H6 N2 H7 107.816
H6 N2 H8 107.816 H7 N2 H8 107.816
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability