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

using model chemistry: CCSD=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-96.094861
Energy at 298.15K 
HF Energy-95.648899
Nuclear repulsion energy47.262397
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 CCSD=FULL/6-31G(2df,p)
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 3131 2948 30.27      
2 A1 2569 2419 67.08      
3 A1 1363 1283 90.43      
4 A1 1151 1083 19.04      
5 A1 875 824 33.81      
6 A2 293 276 0.00      
7 E 3232 3043 6.91      
7 E 3232 3043 6.90      
8 E 1558 1467 1416.05      
8 E 1558 1467 1416.08      
9 E 1502 1414 794.60      
9 E 1502 1414 794.69      
10 E 1248 1175 0.01      
10 E 1248 1175 0.01      
11 E 876 825 0.70      
11 E 876 825 0.70      
12 E 653i 614i 5326.21      
12 E 653i 614i 5326.30      

Unscaled Zero Point Vibrational Energy (zpe) 12453.5 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 11726.3 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 CCSD=FULL/6-31G(2df,p)
ABC
2.63037 0.67580 0.67580

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.792
N2 0.000 0.000 0.708
H3 0.000 -1.034 -1.125
H4 -0.895 0.517 -1.125
H5 0.895 0.517 -1.125
H6 0.000 1.025 1.058
H7 -0.888 -0.513 1.058
H8 0.888 -0.513 1.058

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49921.08611.08611.08612.11462.11462.1146
N21.49922.10412.10412.10411.08351.08351.0835
H31.08612.10411.79031.79033.00072.41352.4135
H41.08612.10411.79031.79032.41352.41353.0007
H51.08612.10411.79031.79032.41353.00072.4135
H62.11461.08353.00072.41352.41351.77591.7759
H72.11461.08352.41352.41353.00071.77591.7759
H82.11461.08352.41353.00072.41351.77591.7759

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 108.857 C1 N2 H7 108.857
C1 N2 H8 108.857 N2 C1 H3 107.881
N2 C1 H4 107.881 N2 C1 H5 107.881
H3 C1 H4 111.013 H3 C1 H5 111.013
H4 C1 H5 111.013 H6 N2 H7 110.078
H6 N2 H8 110.078 H7 N2 H8 110.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability