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

using model chemistry: PBEPBE/TZVP

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/TZVP
 hartrees
Energy at 0K-96.260121
Energy at 298.15K-96.267147
HF Energy-96.260121
Nuclear repulsion energy47.042879
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/TZVP
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 2989 2955 92.44      
2 A1 2671 2641 11.92      
3 A1 1303 1289 86.88      
4 A1 1204 1190 207.65      
5 A1 860 850 33.77      
6 A2 270 267 0.00      
7 E 3084 3050 8.93      
7 E 3084 3050 8.94      
8 E 2313 2287 3242.99      
8 E 2313 2287 3242.83      
9 E 1427 1411 4.62      
9 E 1427 1411 4.63      
10 E 1279 1265 0.99      
10 E 1279 1265 1.00      
11 E 1148 1135 94.15      
11 E 1148 1135 94.20      
12 E 842 832 61.11      
12 E 842 832 61.24      

Unscaled Zero Point Vibrational Energy (zpe) 14740.6 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 14575.5 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/TZVP
ABC
2.65362 0.66269 0.66269

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.802
N2 0.000 0.000 0.711
H3 0.000 -1.044 -1.137
H4 -0.904 0.522 -1.137
H5 0.904 0.522 -1.137
H6 0.000 1.005 1.083
H7 -0.871 -0.503 1.083
H8 0.871 -0.503 1.083

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.51341.09651.09651.09652.13702.13702.1370
N21.51342.12282.12282.12281.07221.07221.0722
H31.09652.12281.80841.80843.02192.44592.4459
H41.09652.12281.80841.80842.44592.44593.0219
H51.09652.12281.80841.80842.44593.02192.4459
H62.13701.07223.02192.44592.44591.74151.7415
H72.13701.07222.44592.44593.02191.74151.7415
H82.13701.07222.44593.02192.44591.74151.7415

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 110.320 C1 N2 H7 110.320
C1 N2 H8 110.320 N2 C1 H3 107.782
N2 C1 H4 107.782 N2 C1 H5 107.782
H3 C1 H4 111.106 H3 C1 H5 111.106
H4 C1 H5 111.106 H6 N2 H7 108.609
H6 N2 H8 108.609 H7 N2 H8 108.609
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.182      
2 N 0.278      
3 H 0.087      
4 H 0.087      
5 H 0.087      
6 H -0.119      
7 H -0.119      
8 H -0.119      


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 -1.359 1.359
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.106 0.000 0.000
y 0.000 -19.106 0.000
z 0.000 0.000 -18.150
Traceless
 xyz
x -0.478 0.000 0.000
y 0.000 -0.478 0.000
z 0.000 0.000 0.957
Polar
3z2-r21.914
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 14.476 0.000 0.000
y 0.000 14.476 -0.003
z 0.000 -0.003 9.020


<r2> (average value of r2) Å2
<r2> 32.840
(<r2>)1/2 5.731