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

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-96.148121
Energy at 298.15K-96.155316
HF Energy-95.736342
Nuclear repulsion energy47.827720
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 MP2/6-311+G(3df,2p)
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 3109 2933 51.98      
2 A1 3024 2853 21.36      
3 A1 1419 1339 16.59      
4 A1 1339 1263 500.23      
5 A1 983 928 56.84      
6 A2 309 292 0.00      
7 E 3220 3037 0.13      
7 E 3220 3037 0.13      
8 E 2975 2806 1355.00      
8 E 2975 2806 1355.00      
9 E 1518 1432 57.12      
9 E 1518 1432 57.12      
10 E 1510 1424 1.50      
10 E 1510 1424 1.50      
11 E 1255 1184 0.58      
11 E 1255 1184 0.58      
12 E 889 838 80.37      
12 E 889 838 80.37      

Unscaled Zero Point Vibrational Energy (zpe) 16457.4 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 15525.9 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 MP2/6-311+G(3df,2p)
ABC
2.77855 0.68006 0.68006

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

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 0.700
H3 0.000 -1.031 -1.129
H4 -0.893 0.515 -1.129
H5 0.893 0.515 -1.129
H6 0.000 0.972 1.078
H7 -0.841 -0.486 1.078
H8 0.841 -0.486 1.078

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49201.08491.08491.08492.10662.10662.1066
N21.49202.10022.10022.10021.04221.04221.0422
H31.08492.10021.78561.78562.98012.42412.4241
H41.08492.10021.78561.78562.42412.42412.9801
H51.08492.10021.78561.78562.42412.98012.4241
H62.10661.04222.98012.42412.42411.68271.6827
H72.10661.04222.42412.42412.98011.68271.6827
H82.10661.04222.42412.98012.42411.68271.6827

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 111.222 C1 N2 H7 111.222
C1 N2 H8 111.222 N2 C1 H3 108.143
N2 C1 H4 108.143 N2 C1 H5 108.143
H3 C1 H4 110.766 H3 C1 H5 110.766
H4 C1 H5 110.766 H6 N2 H7 107.665
H6 N2 H8 107.665 H7 N2 H8 107.665
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability