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

using model chemistry: PBE1PBE/6-31G**

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/6-31G**
 hartrees
Energy at 0K-96.197592
Energy at 298.15K 
HF Energy-96.197592
Nuclear repulsion energy47.055834
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/6-31G**
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 3096 2951 53.85      
2 A1 2511 2394 86.43      
3 A1 1337 1274 130.53      
4 A1 1140 1086 9.69      
5 A1 871 830 28.28      
6 A2 281 268 0.00      
7 E 3196 3046 14.00      
7 E 3196 3046 14.01      
8 E 1564 1491 1819.75      
8 E 1564 1491 1819.87      
9 E 1485 1415 351.11      
9 E 1485 1415 351.26      
10 E 1225 1168 4.18      
10 E 1225 1168 4.17      
11 E 861 820 6.07      
11 E 861 820 6.07      
12 E 512i 488i 4197.54      
12 E 512i 488i 4198.35      

Unscaled Zero Point Vibrational Energy (zpe) 12436.9 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 11853.6 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/6-31G**
ABC
2.58426 0.67364 0.67364

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.792
N2 0.000 0.000 0.708
H3 0.000 -1.039 -1.126
H4 -0.900 0.520 -1.126
H5 0.900 0.520 -1.126
H6 0.000 1.038 1.057
H7 -0.899 -0.519 1.057
H8 0.899 -0.519 1.057

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50031.09181.09181.09182.12032.12032.1203
N21.50032.10862.10862.10861.09501.09501.0950
H31.09182.10861.80011.80013.01362.41772.4177
H41.09182.10861.80011.80012.41772.41773.0136
H51.09182.10861.80011.80012.41773.01362.4177
H62.12031.09503.01362.41772.41771.79781.7978
H72.12031.09502.41772.41773.01361.79781.7978
H82.12031.09502.41773.01362.41771.79781.7978

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 108.563 C1 N2 H7 108.563
C1 N2 H8 108.563 N2 C1 H3 107.836
N2 C1 H4 107.836 N2 C1 H5 107.836
H3 C1 H4 111.055 H3 C1 H5 111.055
H4 C1 H5 111.055 H6 N2 H7 110.364
H6 N2 H8 110.364 H7 N2 H8 110.364
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.419      
2 N -0.422      
3 H 0.184      
4 H 0.184      
5 H 0.184      
6 H 0.096      
7 H 0.096      
8 H 0.096      


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 -1.013 1.013
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.845 0.000 0.000
y 0.000 -16.845 0.000
z 0.000 0.000 -16.591
Traceless
 xyz
x -0.127 0.000 0.000
y 0.000 -0.127 0.000
z 0.000 0.000 0.254
Polar
3z2-r20.508
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 8.530 0.000 0.000
y 0.000 8.531 0.000
z 0.000 0.000 5.202


<r2> (average value of r2) Å2
<r2> 31.373
(<r2>)1/2 5.601