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

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-96.333946
Energy at 298.15K 
HF Energy-96.333946
Nuclear repulsion energy46.820004
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 TPSSh/6-31G(2df,p)
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 3048 2941 63.62      
2 A1 2370 2287 94.79      
3 A1 1312 1266 112.83      
4 A1 1085 1047 4.54      
5 A1 825 796 22.32      
6 A2 272 262 0.00      
7 E 3148 3038 18.78      
7 E 3148 3038 18.80      
8 E 1500 1447 461.81      
8 E 1500 1447 461.16      
9 E 1440 1390 991.73      
9 E 1440 1390 993.01      
10 E 1203 1161 28.36      
10 E 1203 1161 28.37      
11 E 847 818 29.93      
11 E 847 818 29.94      
12 E 1201i 1159i 5659.03      
12 E 1201i 1159i 5661.76      

Unscaled Zero Point Vibrational Energy (zpe) 11392.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 10993.8 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 TPSSh/6-31G(2df,p)
ABC
2.53949 0.66767 0.66767

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.803
N2 0.000 0.000 0.710
H3 0.000 -1.043 -1.124
H4 -0.903 0.521 -1.124
H5 0.903 0.521 -1.124
H6 0.000 1.023 1.072
H7 -0.886 -0.512 1.072
H8 0.886 -0.512 1.072

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.51331.09111.09111.09112.13602.13602.1360
N21.51332.11032.11032.11031.08551.08551.0855
H31.09112.11031.80591.80593.01542.42722.4272
H41.09112.11031.80591.80592.42722.42723.0154
H51.09112.11031.80591.80592.42723.01542.4272
H62.13601.08553.01542.42722.42721.77271.7727
H72.13601.08552.42722.42723.01541.77271.7727
H82.13601.08552.42723.01542.42721.77271.7727

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 109.459 C1 N2 H7 109.459
C1 N2 H8 109.459 N2 C1 H3 107.137
N2 C1 H4 107.137 N2 C1 H5 107.137
H3 C1 H4 111.701 H3 C1 H5 111.701
H4 C1 H5 111.701 H6 N2 H7 109.483
H6 N2 H8 109.483 H7 N2 H8 109.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.353      
2 N -0.132      
3 H 0.145      
4 H 0.145      
5 H 0.145      
6 H 0.017      
7 H 0.017      
8 H 0.017      


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 -1.004 1.004
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.821 0.000 0.000
y 0.000 8.820 0.000
z 0.000 0.000 5.325


<r2> (average value of r2) Å2
<r2> 31.456
(<r2>)1/2 5.609