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

using model chemistry: CISD/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 CISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-96.135307
Energy at 298.15K-96.142543
HF Energy-95.737392
Nuclear repulsion energy48.098656
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 CISD/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 3194 2944 39.08      
2 A1 3156 2909 28.31      
3 A1 1473 1357 7.05      
4 A1 1416 1306 673.00      
5 A1 1015 935 59.62      
6 A2 313 289 0.00      
7 E 3255 3000 23.77      
7 E 3255 3000 23.77      
8 E 3153 2906 1416.89      
8 E 3153 2906 1416.89      
9 E 1591 1467 167.87      
9 E 1591 1467 167.87      
10 E 1546 1425 11.56      
10 E 1546 1425 11.56      
11 E 1301 1200 4.41      
11 E 1301 1200 4.41      
12 E 914 843 121.74      
12 E 914 843 121.74      

Unscaled Zero Point Vibrational Energy (zpe) 17043.4 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 15710.6 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 CISD/6-311+G(3df,2p)
ABC
2.82477 0.68558 0.68558

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.788
N2 0.000 0.000 0.698
H3 0.000 -1.027 -1.127
H4 -0.889 0.513 -1.127
H5 0.889 0.513 -1.127
H6 0.000 0.959 1.076
H7 -0.831 -0.480 1.076
H8 0.831 -0.480 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48551.08121.08121.08122.09602.09602.0960
N21.48552.09382.09382.09381.03101.03101.0310
H31.08122.09381.77801.77802.96592.41712.4171
H41.08122.09381.77801.77802.41712.41712.9659
H51.08122.09381.77801.77802.41712.96592.4171
H62.09601.03102.96592.41712.41711.66141.6614
H72.09601.03102.41712.41712.96591.66141.6614
H82.09601.03102.41712.96592.41711.66141.6614

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 111.512 C1 N2 H7 111.512
C1 N2 H8 111.512 N2 C1 H3 108.295
N2 C1 H4 108.295 N2 C1 H5 108.295
H3 C1 H4 110.622 H3 C1 H5 110.622
H4 C1 H5 110.622 H6 N2 H7 107.355
H6 N2 H8 107.355 H7 N2 H8 107.356
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability