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

using model chemistry: PBEPBE/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-96.279167
Energy at 298.15K-96.286239
HF Energy-96.279167
Nuclear repulsion energy47.335942
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/aug-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 2995 2975 94.90      
2 A1 2864 2845 43.50      
3 A1 1340 1331 7.74      
4 A1 1290 1281 715.85      
5 A1 901 895 67.46      
6 A2 263 261 0.00      
7 E 3088 3068 1.61      
7 E 3088 3068 1.59      
8 E 2721 2703 2803.42      
8 E 2721 2703 2805.48      
9 E 1431 1421 25.59      
9 E 1431 1421 25.56      
10 E 1401 1392 77.91      
10 E 1401 1392 77.87      
11 E 1195 1187 3.61      
11 E 1195 1187 3.62      
12 E 855 849 85.88      
12 E 855 849 85.83      

Unscaled Zero Point Vibrational Energy (zpe) 15515.1 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 15414.3 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/aug-cc-pVTZ
ABC
2.71443 0.66696 0.66696

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

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 0.708
H3 0.000 -1.041 -1.138
H4 -0.902 0.521 -1.138
H5 0.902 0.521 -1.138
H6 0.000 0.985 1.086
H7 -0.853 -0.492 1.086
H8 0.853 -0.492 1.086

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50751.09481.09481.09482.12762.12762.1276
N21.50752.11912.11912.11911.05501.05501.0550
H31.09482.11911.80351.80353.00852.44432.4443
H41.09482.11911.80351.80352.44432.44433.0085
H51.09482.11911.80351.80352.44433.00852.4443
H62.12761.05503.00852.44432.44431.70571.7057
H72.12761.05502.44432.44433.00851.70571.7057
H82.12761.05502.44433.00852.44431.70571.7057

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 111.021 C1 N2 H7 111.021
C1 N2 H8 111.021 N2 C1 H3 107.986
N2 C1 H4 107.986 N2 C1 H5 107.986
H3 C1 H4 110.914 H3 C1 H5 110.914
H4 C1 H5 110.914 H6 N2 H7 107.878
H6 N2 H8 107.878 H7 N2 H8 107.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.406      
2 N 0.041      
3 H 0.255      
4 H 0.255      
5 H 0.255      
6 H -0.133      
7 H -0.133      
8 H -0.133      


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 -2.356 2.356
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.011 0.000 0.000
y 0.000 -24.011 0.000
z 0.000 0.000 -22.140
Traceless
 xyz
x -0.936 0.000 0.000
y 0.000 -0.936 0.000
z 0.000 0.000 1.871
Polar
3z2-r23.742
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 45.081 0.000 0.000
y 0.000 45.076 -0.004
z 0.000 -0.004 27.664


<r2> (average value of r2) Å2
<r2> 35.537
(<r2>)1/2 5.961