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

using model chemistry: QCISD/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 QCISD/Def2TZVPP
 hartrees
Energy at 0K-96.171819
Energy at 298.15K-96.178972
HF Energy-95.722331
Nuclear repulsion energy47.598482
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 QCISD/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 3091 3091 54.57      
2 A1 2914 2914 2.74      
3 A1 1398 1398 28.87      
4 A1 1297 1297 280.26      
5 A1 936 936 39.31      
6 A2 300 300 0.00      
7 E 3188 3188 0.68      
7 E 3188 3188 0.68      
8 E 2631 2631 3674.71      
8 E 2631 2631 3674.71      
9 E 1514 1514 0.81      
9 E 1514 1514 0.81      
10 E 1443 1443 42.80      
10 E 1443 1443 42.80      
11 E 1237 1237 15.39      
11 E 1237 1237 15.40      
12 E 878 878 117.07      
12 E 878 878 117.06      

Unscaled Zero Point Vibrational Energy (zpe) 15857.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15857.5 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 QCISD/Def2TZVPP
ABC
2.75040 0.67368 0.67368

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.797
N2 0.000 0.000 0.704
H3 0.000 -1.033 -1.131
H4 -0.895 0.516 -1.131
H5 0.895 0.516 -1.131
H6 0.000 0.980 1.082
H7 -0.849 -0.490 1.082
H8 0.849 -0.490 1.082

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50051.08581.08581.08582.11862.11862.1186
N21.50052.10582.10582.10581.05021.05021.0502
H31.08582.10581.78921.78922.99142.43152.4315
H41.08582.10581.78921.78922.43152.43152.9914
H51.08582.10581.78921.78922.43152.99142.4315
H62.11861.05022.99142.43152.43151.69711.6971
H72.11861.05022.43152.43152.99141.69711.6971
H82.11861.05022.43152.99142.43151.69711.6971

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 111.092 C1 N2 H7 111.092
C1 N2 H8 111.092 N2 C1 H3 107.943
N2 C1 H4 107.943 N2 C1 H5 107.943
H3 C1 H4 110.955 H3 C1 H5 110.955
H4 C1 H5 110.955 H6 N2 H7 107.803
H6 N2 H8 107.803 H7 N2 H8 107.803
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability