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

using model chemistry: mPW1PW91/aug-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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-96.357388
Energy at 298.15K-96.364547
HF Energy-96.357388
Nuclear repulsion energy47.697102
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 mPW1PW91/aug-cc-pVDZ
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 3094 2965 72.56      
2 A1 3023 2897 96.53      
3 A1 1388 1331 20.61      
4 A1 1345 1289 853.02      
5 A1 974 934 79.48      
6 A2 289 277 0.00      
7 E 3203 3070 0.27      
7 E 3203 3070 0.27      
8 E 2918 2797 3997.28      
8 E 2918 2797 3999.87      
9 E 1475 1413 181.67      
9 E 1475 1413 181.74      
10 E 1459 1398 36.69      
10 E 1459 1398 36.66      
11 E 1238 1186 0.25      
11 E 1238 1186 0.24      
12 E 885 848 143.32      
12 E 885 848 143.10      

Unscaled Zero Point Vibrational Energy (zpe) 16234.8 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 15557.8 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 mPW1PW91/aug-cc-pVDZ
ABC
2.75739 0.67752 0.67752

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.792
N2 0.000 0.000 0.700
H3 0.000 -1.038 -1.133
H4 -0.899 0.519 -1.133
H5 0.899 0.519 -1.133
H6 0.000 0.971 1.083
H7 -0.841 -0.486 1.083
H8 0.841 -0.486 1.083

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49271.09281.09281.09282.11192.11192.1119
N21.49272.10672.10672.10671.04411.04411.0441
H31.09282.10671.79861.79862.99132.43352.4335
H41.09282.10671.79861.79862.43352.43352.9913
H51.09282.10671.79861.79862.43352.99132.4335
H62.11191.04412.99132.43352.43351.68261.6826
H72.11191.04412.43352.43352.99131.68261.6826
H82.11191.04412.43352.99132.43351.68261.6826

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 111.493 C1 N2 H7 111.493
C1 N2 H8 111.493 N2 C1 H3 108.145
N2 C1 H4 108.145 N2 C1 H5 108.145
H3 C1 H4 110.764 H3 C1 H5 110.764
H4 C1 H5 110.764 H6 N2 H7 107.376
H6 N2 H8 107.376 H7 N2 H8 107.376
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.030      
2 N -0.169      
3 H -0.149      
4 H -0.149      
5 H -0.149      
6 H -0.138      
7 H -0.138      
8 H -0.138      


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 -2.765 2.765
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.833 0.000 0.000
y 0.000 -23.833 0.000
z 0.000 0.000 -23.007
Traceless
 xyz
x -0.413 0.000 0.000
y 0.000 -0.413 0.000
z 0.000 0.000 0.826
Polar
3z2-r21.652
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 50.376 0.000 0.000
y 0.000 50.338 -0.016
z 0.000 -0.016 28.434


<r2> (average value of r2) Å2
<r2> 35.346
(<r2>)1/2 5.945