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

using model chemistry: B3PW91/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-96.308259
Energy at 298.15K-96.315259
HF Energy-96.308259
Nuclear repulsion energy47.109177
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/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3055 2948 82.26      
2 A1 2612 2521 67.57      
3 A1 1307 1261 126.99      
4 A1 1150 1110 87.37      
5 A1 895 864 54.79      
6 A2 283 273 0.00      
7 E 3164 3054 12.54      
7 E 3164 3054 12.54      
8 E 1892 1826 4813.62      
8 E 1892 1826 4815.01      
9 E 1434 1384 37.55      
9 E 1434 1384 37.56      
10 E 1244 1201 0.58      
10 E 1244 1201 0.58      
11 E 1017 981 895.78      
11 E 1017 981 895.54      
12 E 838 809 160.87      
12 E 838 809 160.94      

Unscaled Zero Point Vibrational Energy (zpe) 14240.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 13742.2 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/cc-pVDZ
ABC
2.62043 0.67177 0.67177

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.794
N2 0.000 0.000 0.704
H3 0.000 -1.045 -1.131
H4 -0.905 0.523 -1.131
H5 0.905 0.523 -1.131
H6 0.000 1.017 1.076
H7 -0.881 -0.509 1.076
H8 0.881 -0.509 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49831.09841.09841.09842.12842.12842.1284
N21.49832.11242.11242.11241.08301.08301.0830
H31.09842.11241.81061.81063.02082.43622.4362
H41.09842.11241.81061.81062.43622.43623.0208
H51.09842.11241.81061.81062.43623.02082.4362
H62.12841.08303.02082.43622.43621.76211.7621
H72.12841.08302.43622.43623.02081.76211.7621
H82.12841.08302.43623.02082.43621.76211.7621

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 110.051 C1 N2 H7 110.051
C1 N2 H8 110.051 N2 C1 H3 107.887
N2 C1 H4 107.887 N2 C1 H5 107.887
H3 C1 H4 111.008 H3 C1 H5 111.008
H4 C1 H5 111.008 H6 N2 H7 108.885
H6 N2 H8 108.885 H7 N2 H8 108.885
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.027      
2 N 0.182      
3 H 0.049      
4 H 0.049      
5 H 0.049      
6 H -0.101      
7 H -0.101      
8 H -0.101      


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 -1.260 1.260
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.347 0.000 0.000
y 0.000 -17.347 0.000
z 0.000 0.000 -17.267
Traceless
 xyz
x -0.040 0.000 0.000
y 0.000 -0.040 0.000
z 0.000 0.000 0.079
Polar
3z2-r20.158
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 11.575 0.000 0.000
y 0.000 11.578 0.001
z 0.000 0.001 6.951


<r2> (average value of r2) Å2
<r2> 31.766
(<r2>)1/2 5.636