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

using model chemistry: B3PW91/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 B3PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-96.349690
Energy at 298.15K-96.356835
HF Energy-96.349690
Nuclear repulsion energy47.586644
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/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 3077 2968 72.89      
2 A1 2987 2881 91.77      
3 A1 1378 1329 23.76      
4 A1 1332 1285 805.49      
5 A1 957 923 76.49      
6 A2 285 275 0.00      
7 E 3184 3072 0.02      
7 E 3184 3072 0.02      
8 E 2876 2774 3649.23      
8 E 2876 2774 3651.09      
9 E 1462 1410 115.92      
9 E 1462 1410 115.97      
10 E 1448 1396 61.89      
10 E 1448 1396 61.83      
11 E 1227 1184 0.82      
11 E 1227 1184 0.81      
12 E 880 849 123.07      
12 E 880 849 122.92      

Unscaled Zero Point Vibrational Energy (zpe) 16084.2 cm-1
Scaled (by 0.9646) Zero Point Vibrational Energy (zpe) 15514.8 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 B3PW91/aug-cc-pVDZ
ABC
2.74513 0.67428 0.67428

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-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 0.702
H3 0.000 -1.040 -1.135
H4 -0.901 0.520 -1.135
H5 0.901 0.520 -1.135
H6 0.000 0.974 1.085
H7 -0.844 -0.487 1.085
H8 0.844 -0.487 1.085

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49661.09431.09431.09432.11732.11732.1173
N21.49662.11082.11082.11081.04691.04691.0469
H31.09432.11081.80161.80162.99762.43842.4384
H41.09432.11081.80161.80162.43842.43842.9976
H51.09432.11081.80161.80162.43842.99762.4384
H62.11731.04692.99762.43842.43841.68751.6875
H72.11731.04692.43842.43842.99761.68751.6875
H82.11731.04692.43842.99762.43841.68751.6875

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 111.470 C1 N2 H7 111.470
C1 N2 H8 111.470 N2 C1 H3 108.106
N2 C1 H4 108.106 N2 C1 H5 108.106
H3 C1 H4 110.801 H3 C1 H5 110.801
H4 C1 H5 110.801 H6 N2 H7 107.401
H6 N2 H8 107.401 H7 N2 H8 107.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.027      
2 N -0.107      
3 H -0.160      
4 H -0.160      
5 H -0.160      
6 H -0.146      
7 H -0.146      
8 H -0.146      


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 -2.745 2.745
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.699 0.000 0.000
y 0.000 -23.699 0.000
z 0.000 0.000 -22.868
Traceless
 xyz
x -0.416 0.000 0.000
y 0.000 -0.416 0.000
z 0.000 0.000 0.831
Polar
3z2-r21.663
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 48.004 0.000 0.000
y 0.000 47.979 -0.016
z 0.000 -0.016 27.608


<r2> (average value of r2) Å2
<r2> 35.356
(<r2>)1/2 5.946