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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-96.252462
Energy at 298.15K-96.258694
HF Energy-96.252462
Nuclear repulsion energy47.105356
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 B1B95/6-31G*
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 3102 2945 54.41      
2 A1 2508 2381 89.97      
3 A1 1329 1261 133.28      
4 A1 1140 1082 12.73      
5 A1 853 809 27.05      
6 A2 281 267 0.00      
7 E 3202 3040 15.16      
7 E 3202 3040 15.18      
8 E 1603 1521 2088.21      
8 E 1602 1521 2089.11      
9 E 1489 1414 182.98      
9 E 1489 1414 183.18      
10 E 1221 1160 2.68      
10 E 1221 1160 2.68      
11 E 854 811 1.05      
11 E 854 811 1.04      
12 E 336 319 3046.33      
12 E 336 319 3048.54      

Unscaled Zero Point Vibrational Energy (zpe) 13310.6 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 12635.8 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 B1B95/6-31G*
ABC
2.59837 0.67361 0.67361

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.793
N2 0.000 0.000 0.708
H3 0.000 -1.038 -1.125
H4 -0.899 0.519 -1.125
H5 0.899 0.519 -1.125
H6 0.000 1.034 1.059
H7 -0.896 -0.517 1.059
H8 0.896 -0.517 1.059

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50121.08921.08921.08922.12122.12122.1212
N21.50122.10592.10592.10591.09201.09201.0920
H31.08922.10591.79711.79713.00992.41672.4167
H41.08922.10591.79711.79712.41672.41673.0099
H51.08922.10591.79711.79712.41673.00992.4167
H62.12121.09203.00992.41672.41671.79111.7911
H72.12121.09202.41672.41673.00991.79111.7911
H82.12121.09202.41673.00992.41671.79111.7911

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 108.743 C1 N2 H7 108.743
C1 N2 H8 108.743 N2 C1 H3 107.715
N2 C1 H4 107.715 N2 C1 H5 107.715
H3 C1 H4 111.169 H3 C1 H5 111.169
H4 C1 H5 111.169 H6 N2 H7 110.190
H6 N2 H8 110.190 H7 N2 H8 110.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.391      
2 N -0.407      
3 H 0.174      
4 H 0.174      
5 H 0.174      
6 H 0.092      
7 H 0.092      
8 H 0.092      


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 -0.991 0.991
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.802 0.000 0.000
y 0.000 -16.802 0.000
z 0.000 0.000 -16.555
Traceless
 xyz
x -0.123 0.000 0.000
y 0.000 -0.123 0.000
z 0.000 0.000 0.247
Polar
3z2-r20.494
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 8.107 0.000 0.000
y 0.000 8.104 0.000
z 0.000 0.000 5.250


<r2> (average value of r2) Å2
<r2> 31.322
(<r2>)1/2 5.597