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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-96.333512
Energy at 298.15K-96.340609
HF Energy-96.333512
Nuclear repulsion energy47.407050
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 B3PW91/6-311G*
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 3065 2950 87.23      
2 A1 2760 2657 37.07      
3 A1 1356 1306 97.11      
4 A1 1261 1214 182.74      
5 A1 920 886 40.93      
6 A2 285 274 0.00      
7 E 3163 3045 11.03      
7 E 3163 3045 11.02      
8 E 2260 2175 5025.59      
8 E 2260 2175 5027.01      
9 E 1483 1428 10.99      
9 E 1483 1428 10.99      
10 E 1373 1322 5.79      
10 E 1373 1322 5.78      
11 E 1198 1153 144.47      
11 E 1198 1153 144.42      
12 E 862 830 130.17      
12 E 862 830 130.20      

Unscaled Zero Point Vibrational Energy (zpe) 15161.8 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 14596.2 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 B3PW91/6-311G*
ABC
2.69732 0.67343 0.67343

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.795
N2 0.000 0.000 0.704
H3 0.000 -1.037 -1.131
H4 -0.898 0.518 -1.131
H5 0.898 0.518 -1.131
H6 0.000 0.996 1.079
H7 -0.863 -0.498 1.079
H8 0.863 -0.498 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49881.08961.08961.08962.12272.12272.1227
N21.49882.10712.10712.10711.06481.06481.0648
H31.08962.10711.79541.79543.00292.43292.4329
H41.08962.10711.79541.79542.43292.43293.0029
H51.08962.10711.79541.79542.43293.00292.4329
H62.12271.06483.00292.43292.43291.72571.7257
H72.12271.06482.43292.43293.00291.72571.7257
H82.12271.06482.43293.00292.43291.72571.7257

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 110.656 C1 N2 H7 110.656
C1 N2 H8 110.656 N2 C1 H3 107.948
N2 C1 H4 107.948 N2 C1 H5 107.948
H3 C1 H4 110.950 H3 C1 H5 110.950
H4 C1 H5 110.950 H6 N2 H7 108.261
H6 N2 H8 108.261 H7 N2 H8 108.261
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.469      
2 N -0.506      
3 H 0.223      
4 H 0.223      
5 H 0.223      
6 H 0.102      
7 H 0.102      
8 H 0.102      


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 -1.532 1.532
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.151 0.000 0.000
y 0.000 -18.151 0.000
z 0.000 0.000 -18.165
Traceless
 xyz
x 0.007 0.000 0.000
y 0.000 0.007 0.000
z 0.000 0.000 -0.014
Polar
3z2-r2-0.028
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 14.695 0.000 0.000
y 0.000 14.700 0.000
z 0.000 0.000 8.178


<r2> (average value of r2) Å2
<r2> 32.131
(<r2>)1/2 5.668