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

using model chemistry: MP2=FULL/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 MP2=FULL/TZVP
 hartrees
Energy at 0K-96.115957
Energy at 298.15K-96.123144
HF Energy-95.715077
Nuclear repulsion energy47.542159
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 MP2=FULL/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 3121 2974 56.17      
2 A1 2880 2744 3.02      
3 A1 1410 1343 45.68      
4 A1 1308 1246 262.03      
5 A1 947 902 40.84      
6 A2 320 305 0.00      
7 E 3235 3082 3.76      
7 E 3235 3082 3.76      
8 E 2653 2528 1904.19      
8 E 2653 2528 1904.19      
9 E 1517 1445 1.00      
9 E 1517 1445 1.00      
10 E 1401 1335 1.18      
10 E 1401 1335 1.18      
11 E 1242 1183 20.53      
11 E 1242 1183 20.53      
12 E 889 847 65.56      
12 E 889 847 65.56      

Unscaled Zero Point Vibrational Energy (zpe) 15929.3 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 15175.9 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 MP2=FULL/TZVP
ABC
2.73425 0.67365 0.67365

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.796
N2 0.000 0.000 0.704
H3 0.000 -1.032 -1.130
H4 -0.894 0.516 -1.130
H5 0.894 0.516 -1.130
H6 0.000 0.987 1.080
H7 -0.855 -0.493 1.080
H8 0.855 -0.493 1.080

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50051.08481.08481.08482.11992.11992.1199
N21.50052.10502.10502.10501.05601.05601.0560
H31.08482.10501.78771.78772.99362.43022.4302
H41.08482.10501.78771.78772.43022.43022.9936
H51.08482.10501.78771.78772.43022.99362.4302
H62.11991.05602.99362.43022.43021.70931.7093
H72.11991.05602.43022.43022.99361.70931.7093
H82.11991.05602.43022.99362.43021.70931.7093

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 110.841 C1 N2 H7 110.841
C1 N2 H8 110.841 N2 C1 H3 107.940
N2 C1 H4 107.940 N2 C1 H5 107.940
H3 C1 H4 110.958 H3 C1 H5 110.958
H4 C1 H5 110.958 H6 N2 H7 108.068
H6 N2 H8 108.068 H7 N2 H8 108.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability