return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/aug-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 CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-96.103917
Energy at 298.15K-96.111094
HF Energy-95.721100
Nuclear repulsion energy47.427911
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 CCD/aug-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 3092 2982 50.25      
2 A1 3070 2961 103.03      
3 A1 1415 1364 9.31      
4 A1 1393 1344 695.58      
5 A1 976 941 55.64      
6 A2 290 280 0.00      
7 E 3198 3084 1.44      
7 E 3198 3084 1.44      
8 E 3044 2936 2661.37      
8 E 3044 2936 2661.37      
9 E 1533 1478 176.22      
9 E 1533 1478 176.22      
10 E 1486 1433 0.19      
10 E 1486 1433 0.19      
11 E 1254 1210 0.15      
11 E 1254 1210 0.15      
12 E 891 859 100.09      
12 E 891 859 100.09      

Unscaled Zero Point Vibrational Energy (zpe) 16523.7 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 15937.1 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 CCD/aug-cc-pVDZ
ABC
2.74218 0.66695 0.66695

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.800
N2 0.000 0.000 0.707
H3 0.000 -1.044 -1.141
H4 -0.904 0.522 -1.141
H5 0.904 0.522 -1.141
H6 0.000 0.971 1.091
H7 -0.841 -0.486 1.091
H8 0.841 -0.486 1.091

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50641.09811.09811.09812.12602.12602.1260
N21.50642.12182.12182.12181.04481.04481.0448
H31.09812.12181.80801.80803.00712.44962.4496
H41.09812.12181.80801.80802.44962.44963.0071
H51.09812.12181.80801.80802.44963.00712.4496
H62.12601.04483.00712.44962.44961.68261.6826
H72.12601.04482.44962.44963.00711.68261.6826
H82.12601.04482.44963.00712.44961.68261.6826

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 111.601 C1 N2 H7 111.601
C1 N2 H8 111.601 N2 C1 H3 108.080
N2 C1 H4 108.080 N2 C1 H5 108.080
H3 C1 H4 110.826 H3 C1 H5 110.826
H4 C1 H5 110.826 H6 N2 H7 107.260
H6 N2 H8 107.260 H7 N2 H8 107.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability