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

using model chemistry: B97D3/6-31G(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 B97D3/6-31G(2df,p)
 hartrees
Energy at 0K-96.275459
Energy at 298.15K 
HF Energy-96.275459
Nuclear repulsion energy46.593083
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 B97D3/6-31G(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 2986 2986 87.15      
2 A1 2326 2326 102.50      
3 A1 1255 1255 140.45      
4 A1 1055 1055 6.74      
5 A1 748 748 16.26      
6 A2 257 257 0.00      
7 E 3089 3089 23.72      
7 E 3089 3089 23.75      
8 E 1497 1497 1433.83      
8 E 1496 1496 1434.72      
9 E 1416 1416 273.74      
9 E 1416 1416 274.18      
10 E 1161 1161 33.10      
10 E 1161 1161 33.12      
11 E 828 828 51.12      
11 E 828 828 51.17      
12 E 789i 789i 3517.11      
12 E 789i 789i 3520.03      

Unscaled Zero Point Vibrational Energy (zpe) 11513.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11513.0 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 B97D3/6-31G(2df,p)
ABC
2.51623 0.66075 0.66075

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.803
N2 0.000 0.000 0.720
H3 0.000 -1.047 -1.125
H4 -0.907 0.524 -1.125
H5 0.907 0.524 -1.125
H6 0.000 1.058 1.050
H7 -0.916 -0.529 1.050
H8 0.916 -0.529 1.050

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.52331.09571.09571.09572.13402.13402.1340
N21.52332.12182.12182.12181.10811.10811.1081
H31.09572.12181.81401.81403.02722.41672.4167
H41.09572.12181.81401.81402.41672.41673.0272
H51.09572.12181.81401.81402.41673.02722.4167
H62.13401.10813.02722.41672.41671.83221.8322
H72.13401.10812.41672.41673.02721.83221.8322
H82.13401.10812.41673.02722.41671.83221.8322

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 107.334 C1 N2 H7 107.334
C1 N2 H8 107.334 N2 C1 H3 107.088
N2 C1 H4 107.088 N2 C1 H5 107.088
H3 C1 H4 111.745 H3 C1 H5 111.745
H4 C1 H5 111.745 H6 N2 H7 111.522
H6 N2 H8 111.522 H7 N2 H8 111.522
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.312      
2 N -0.052      
3 H 0.127      
4 H 0.127      
5 H 0.127      
6 H -0.005      
7 H -0.005      
8 H -0.005      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.938 0.938
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.758 0.000 0.000
y 0.000 -16.758 0.000
z 0.000 0.000 -16.486
Traceless
 xyz
x -0.136 0.000 0.000
y 0.000 -0.136 0.000
z 0.000 0.000 0.273
Polar
3z2-r20.545
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.553 0.000 0.000
y 0.000 8.548 -0.000
z 0.000 -0.000 5.621


<r2> (average value of r2) Å2
<r2> 31.665
(<r2>)1/2 5.627