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

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-95.723482
Energy at 298.15K-95.730759
HF Energy-95.723482
Nuclear repulsion energy48.144241
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 HF/Def2TZVPP
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 3212 2912 44.59      
2 A1 3186 2888 2.47      
3 A1 1530 1387 8.95      
4 A1 1442 1307 383.04      
5 A1 1021 925 48.46      
6 A2 327 297 0.00      
7 E 3302 2993 0.54      
7 E 3302 2993 0.54      
8 E 2913 2640 6136.19      
8 E 2913 2640 6136.19      
9 E 1626 1474 96.48      
9 E 1626 1474 96.48      
10 E 1599 1449 214.70      
10 E 1599 1449 214.70      
11 E 1349 1223 7.51      
11 E 1349 1223 7.51      
12 E 946 857 228.96      
12 E 946 857 228.96      

Unscaled Zero Point Vibrational Energy (zpe) 17093.4 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 15493.4 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 HF/Def2TZVPP
ABC
2.84778 0.68490 0.68490

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.791
N2 0.000 0.000 0.700
H3 0.000 -1.023 -1.127
H4 -0.886 0.512 -1.127
H5 0.886 0.512 -1.127
H6 0.000 0.963 1.076
H7 -0.834 -0.482 1.076
H8 0.834 -0.482 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49041.07681.07681.07682.10012.10012.1001
N21.49042.09342.09342.09341.03381.03381.0338
H31.07682.09341.77191.77192.96562.41642.4164
H41.07682.09341.77191.77192.41642.41642.9656
H51.07682.09341.77191.77192.41642.96562.4164
H62.10011.03382.96562.41642.41641.66811.6681
H72.10011.03382.41642.41642.96561.66811.6681
H82.10011.03382.41642.96562.41641.66811.6681

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 111.320 C1 N2 H7 111.320
C1 N2 H8 111.320 N2 C1 H3 108.184
N2 C1 H4 108.184 N2 C1 H5 108.184
H3 C1 H4 110.727 H3 C1 H5 110.727
H4 C1 H5 110.727 H6 N2 H7 107.561
H6 N2 H8 107.561 H7 N2 H8 107.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.079      
2 N 0.741      
3 H 0.027      
4 H 0.027      
5 H 0.027      
6 H -0.300      
7 H -0.300      
8 H -0.300      


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 -2.112 2.112
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.677 0.000 0.000
y 0.000 -19.677 0.000
z 0.000 0.000 -19.180
Traceless
 xyz
x -0.248 0.000 0.000
y 0.000 -0.248 0.000
z 0.000 0.000 0.497
Polar
3z2-r20.994
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 20.913 0.000 0.000
y 0.000 20.913 0.000
z 0.000 0.000 8.897


<r2> (average value of r2) Å2
<r2> 32.521
(<r2>)1/2 5.703