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

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-96.046751
Energy at 298.15K-96.053825
HF Energy-95.663295
Nuclear repulsion energy47.021026
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 QCISD/cc-pVDZ
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 3090 2965 47.03      
2 A1 2681 2573 55.99      
3 A1 1349 1295 84.60      
4 A1 1190 1142 99.89      
5 A1 911 874 52.00      
6 A2 306 294 0.00      
7 E 3197 3067 6.37      
7 E 3197 3067 6.37      
8 E 1899 1822 6129.16      
8 E 1899 1822 6129.17      
9 E 1479 1418 25.68      
9 E 1479 1418 25.68      
10 E 1290 1238 28.88      
10 E 1290 1238 28.88      
11 E 1094 1050 905.99      
11 E 1094 1050 905.99      
12 E 843 809 292.70      
12 E 843 809 292.71      

Unscaled Zero Point Vibrational Energy (zpe) 14565.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 13973.8 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 QCISD/cc-pVDZ
ABC
2.62380 0.66692 0.66692

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.798
N2 0.000 0.000 0.707
H3 0.000 -1.048 -1.135
H4 -0.907 0.524 -1.135
H5 0.907 0.524 -1.135
H6 0.000 1.014 1.080
H7 -0.878 -0.507 1.080
H8 0.878 -0.507 1.080

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50511.10061.10061.10062.13392.13392.1339
N21.50512.11952.11952.11951.08001.08001.0800
H31.10062.11951.81461.81463.02592.44342.4434
H41.10062.11951.81461.81462.44342.44343.0259
H51.10062.11951.81461.81462.44343.02592.4434
H62.13391.08003.02592.44342.44341.75571.7557
H72.13391.08002.44342.44343.02591.75571.7557
H82.13391.08002.44343.02592.44341.75571.7557

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 110.189 C1 N2 H7 110.189
C1 N2 H8 110.189 N2 C1 H3 107.855
N2 C1 H4 107.855 N2 C1 H5 107.855
H3 C1 H4 111.038 H3 C1 H5 111.038
H4 C1 H5 111.038 H6 N2 H7 108.744
H6 N2 H8 108.744 H7 N2 H8 108.744
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability