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

using model chemistry: PBE1PBE/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at PBE1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-96.280340
Energy at 298.15K-96.287506
HF Energy-96.280340
Nuclear repulsion energy47.859639
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 PBE1PBE/6-311+G(3df,2p)
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 3074 3074 53.67      
2 A1 3015 3015 23.88      
3 A1 1397 1397 20.14      
4 A1 1311 1311 863.60      
5 A1 974 974 87.54      
6 A2 298 298 0.00      
7 E 3170 3170 4.12      
7 E 3170 3170 4.10      
8 E 2900 2900 2009.09      
8 E 2900 2900 2013.91      
9 E 1487 1487 157.97      
9 E 1487 1487 158.46      
10 E 1474 1474 4.54      
10 E 1474 1474 4.46      
11 E 1247 1247 1.18      
11 E 1247 1247 1.12      
12 E 880 880 145.22      
12 E 880 880 145.93      

Unscaled Zero Point Vibrational Energy (zpe) 16191.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16191.8 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 PBE1PBE/6-311+G(3df,2p)
ABC
2.77109 0.68285 0.68285

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.788
N2 0.000 0.000 0.699
H3 0.000 -1.033 -1.129
H4 -0.895 0.517 -1.129
H5 0.895 0.517 -1.129
H6 0.000 0.972 1.076
H7 -0.842 -0.486 1.076
H8 0.842 -0.486 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48711.08791.08791.08792.10212.10212.1021
N21.48712.09952.09952.09951.04241.04241.0424
H31.08792.09951.78951.78952.98002.42242.4224
H41.08792.09951.78951.78952.42242.42242.9800
H51.08792.09951.78951.78952.42242.98002.4224
H62.10211.04242.98002.42242.42241.68341.6834
H72.10211.04242.42242.42242.98001.68341.6834
H82.10211.04242.42242.98002.42241.68341.6834

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 111.194 C1 N2 H7 111.194
C1 N2 H8 111.194 N2 C1 H3 108.249
N2 C1 H4 108.249 N2 C1 H5 108.249
H3 C1 H4 110.665 H3 C1 H5 110.665
H4 C1 H5 110.665 H6 N2 H7 107.695
H6 N2 H8 107.695 H7 N2 H8 107.695
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.387      
2 N 0.287      
3 H 0.186      
4 H 0.186      
5 H 0.186      
6 H 0.180      
7 H 0.180      
8 H 0.180      


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 -1.408 1.408
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.271 0.000 0.000
y 0.000 -22.271 0.000
z 0.000 0.000 -19.475
Traceless
 xyz
x -1.398 0.000 0.000
y 0.000 -1.398 0.000
z 0.000 0.000 2.796
Polar
3z2-r25.592
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 33.198 0.000 0.000
y 0.000 33.107 0.024
z 0.000 0.024 19.187


<r2> (average value of r2) Å2
<r2> 33.805
(<r2>)1/2 5.814