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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-96.344049
Energy at 298.15K-96.351128
HF Energy-96.344049
Nuclear repulsion energy47.367237
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 3057 2944 85.21      
2 A1 2749 2648 30.29      
3 A1 1348 1298 102.49      
4 A1 1231 1185 182.97      
5 A1 911 877 44.19      
6 A2 279 269 0.00      
7 E 3155 3039 10.18      
7 E 3155 3039 10.18      
8 E 2240 2157 5047.76      
8 E 2240 2157 5049.34      
9 E 1467 1413 9.23      
9 E 1467 1413 9.23      
10 E 1333 1284 4.09      
10 E 1333 1284 4.09      
11 E 1178 1134 164.47      
11 E 1178 1134 164.40      
12 E 854 823 121.99      
12 E 854 823 122.02      

Unscaled Zero Point Vibrational Energy (zpe) 15013.4 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 14459.4 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
2.68853 0.67274 0.67274

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 -0.796
N2 0.000 0.000 0.705
H3 0.000 -1.037 -1.131
H4 -0.898 0.519 -1.131
H5 0.898 0.519 -1.131
H6 0.000 0.999 1.078
H7 -0.865 -0.500 1.078
H8 0.865 -0.500 1.078

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50011.08991.08991.08992.12332.12332.1233
N21.50012.10802.10802.10801.06661.06661.0666
H31.08992.10801.79641.79643.00402.43222.4322
H41.08992.10801.79641.79642.43222.43223.0040
H51.08992.10801.79641.79642.43223.00402.4322
H62.12331.06663.00402.43222.43221.73051.7305
H72.12331.06662.43222.43223.00401.73051.7305
H82.12331.06662.43223.00402.43221.73051.7305

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 110.495 C1 N2 H7 110.495
C1 N2 H8 110.495 N2 C1 H3 107.906
N2 C1 H4 107.906 N2 C1 H5 107.906
H3 C1 H4 110.990 H3 C1 H5 110.990
H4 C1 H5 110.990 H6 N2 H7 108.429
H6 N2 H8 108.429 H7 N2 H8 108.429
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 -0.191      
2 N -0.117      
3 H 0.124      
4 H 0.124      
5 H 0.124      
6 H -0.021      
7 H -0.021      
8 H -0.021      


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 -1.554 1.554
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.085 0.000 0.000
y 0.000 -18.085 0.000
z 0.000 0.000 -18.081
Traceless
 xyz
x -0.002 0.000 0.000
y 0.000 -0.002 0.000
z 0.000 0.000 0.004
Polar
3z2-r20.009
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 14.684 0.000 0.000
y 0.000 14.689 0.000
z 0.000 0.000 8.276


<r2> (average value of r2) Å2
<r2> 32.109
(<r2>)1/2 5.667