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

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-96.258998
Energy at 298.15K-96.266015
HF Energy-96.258998
Nuclear repulsion energy47.122389
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 PBEPBE/cc-pVTZ
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 2982 2961 105.19      
2 A1 2679 2660 43.08      
3 A1 1297 1288 92.71      
4 A1 1179 1171 199.81      
5 A1 871 865 37.75      
6 A2 265 263 0.00      
7 E 3073 3052 11.49      
7 E 3073 3052 11.49      
8 E 2297 2281 3507.93      
8 E 2297 2281 3508.52      
9 E 1414 1405 4.17      
9 E 1414 1405 4.17      
10 E 1282 1273 1.92      
10 E 1282 1273 1.91      
11 E 1152 1144 100.78      
11 E 1152 1144 100.86      
12 E 830 825 79.67      
12 E 830 825 79.73      

Unscaled Zero Point Vibrational Energy (zpe) 14684.7 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 14583.4 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 PBEPBE/cc-pVTZ
ABC
2.65620 0.66568 0.66568

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.801
N2 0.000 0.000 0.709
H3 0.000 -1.044 -1.133
H4 -0.904 0.522 -1.133
H5 0.904 0.522 -1.133
H6 0.000 1.004 1.080
H7 -0.870 -0.502 1.080
H8 0.870 -0.502 1.080

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.51021.09571.09571.09572.13262.13262.1326
N21.51022.11752.11752.11751.07061.07061.0706
H31.09572.11751.80871.80873.01572.43892.4389
H41.09572.11751.80871.80872.43892.43893.0157
H51.09572.11751.80871.80872.43893.01572.4389
H62.13261.07063.01572.43892.43891.73941.7394
H72.13261.07062.43892.43893.01571.73941.7394
H82.13261.07062.43893.01572.43891.73941.7394

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 110.279 C1 N2 H7 110.279
C1 N2 H8 110.279 N2 C1 H3 107.627
N2 C1 H4 107.627 N2 C1 H5 107.627
H3 C1 H4 111.251 H3 C1 H5 111.251
H4 C1 H5 111.251 H6 N2 H7 108.652
H6 N2 H8 108.652 H7 N2 H8 108.652
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.138      
2 N 0.344      
3 H 0.074      
4 H 0.074      
5 H 0.074      
6 H -0.143      
7 H -0.143      
8 H -0.143      


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 -1.257 1.257
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.829 0.000 0.000
y 0.000 -18.829 0.000
z 0.000 0.000 -17.903
Traceless
 xyz
x -0.463 0.000 0.000
y 0.000 -0.463 0.000
z 0.000 0.000 0.926
Polar
3z2-r21.853
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 14.997 0.000 0.000
y 0.000 15.000 -0.002
z 0.000 -0.002 9.618


<r2> (average value of r2) Å2
<r2> 32.586
(<r2>)1/2 5.708