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

using model chemistry: MP2=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-96.064386
Energy at 298.15K-96.071594
HF Energy-95.707678
Nuclear repulsion energy47.813107
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/6-31+G**
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 3163 2971 43.22      
2 A1 3068 2882 26.40      
3 A1 1451 1363 51.74      
4 A1 1382 1298 431.29      
5 A1 984 924 50.53      
6 A2 314 295 0.00      
7 E 3283 3084 1.61      
7 E 3283 3084 1.61      
8 E 3054 2869 890.55      
8 E 3054 2869 890.55      
9 E 1550 1456 51.85      
9 E 1550 1456 51.85      
10 E 1536 1443 10.60      
10 E 1536 1443 10.60      
11 E 1272 1194 0.99      
11 E 1272 1194 0.99      
12 E 899 844 44.34      
12 E 899 844 44.34      

Unscaled Zero Point Vibrational Energy (zpe) 16775.4 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 15755.4 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/6-31+G**
ABC
2.78821 0.67852 0.67852

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.793
N2 0.000 0.000 0.700
H3 0.000 -1.030 -1.131
H4 -0.892 0.515 -1.131
H5 0.892 0.515 -1.131
H6 0.000 0.969 1.083
H7 -0.839 -0.485 1.083
H8 0.839 -0.485 1.083

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49291.08401.08401.08402.11132.11132.1113
N21.49292.10132.10132.10131.04211.04211.0421
H31.08402.10131.78341.78342.98322.43012.4301
H41.08402.10131.78341.78342.43012.43012.9832
H51.08402.10131.78341.78342.43012.98322.4301
H62.11131.04212.98322.43012.43011.67881.6788
H72.11131.04212.43012.43012.98321.67881.6788
H82.11131.04212.43012.98322.43011.67881.6788

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 111.549 C1 N2 H7 111.549
C1 N2 H8 111.549 N2 C1 H3 108.215
N2 C1 H4 108.215 N2 C1 H5 108.215
H3 C1 H4 110.698 H3 C1 H5 110.698
H4 C1 H5 110.698 H6 N2 H7 107.316
H6 N2 H8 107.316 H7 N2 H8 107.316
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability