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

using model chemistry: HF/6-311G*

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/6-311G*
 hartrees
Energy at 0K-95.687755
Energy at 298.15K-95.695003
HF Energy-95.687755
Nuclear repulsion energy48.033414
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/6-311G*
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 3235 2926 44.67      
2 A1 3112 2815 6.80      
3 A1 1532 1385 21.64      
4 A1 1456 1317 246.37      
5 A1 1026 928 54.64      
6 A2 306 277 0.00      
7 E 3326 3008 0.95      
7 E 3326 3008 0.95      
8 E 2545 2302 11245.72      
8 E 2545 2302 11245.72      
9 E 1627 1471 0.11      
9 E 1627 1471 0.11      
10 E 1596 1443 139.46      
10 E 1596 1443 139.46      
11 E 1347 1218 86.78      
11 E 1347 1218 86.78      
12 E 941 851 333.65      
12 E 941 851 333.65      

Unscaled Zero Point Vibrational Energy (zpe) 16715.3 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 15117.3 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/6-311G*
ABC
2.82068 0.68407 0.68407

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.789
N2 0.000 0.000 0.698
H3 0.000 -1.023 -1.130
H4 -0.886 0.512 -1.130
H5 0.886 0.512 -1.130
H6 0.000 0.964 1.079
H7 -0.835 -0.482 1.079
H8 0.835 -0.482 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48631.07851.07851.07852.10152.10152.1015
N21.48632.09442.09442.09441.03681.03681.0368
H31.07852.09441.77211.77212.97102.42232.4223
H41.07852.09441.77211.77212.42232.42232.9710
H51.07852.09441.77211.77212.42232.97102.4223
H62.10151.03682.97102.42232.42231.67021.6702
H72.10151.03682.42232.42232.97101.67021.6702
H82.10151.03682.42232.97102.42231.67021.6702

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 111.554 C1 N2 H7 111.554
C1 N2 H8 111.554 N2 C1 H3 108.447
N2 C1 H4 108.447 N2 C1 H5 108.447
H3 C1 H4 110.476 H3 C1 H5 110.476
H4 C1 H5 110.476 H6 N2 H7 107.310
H6 N2 H8 107.310 H7 N2 H8 107.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.384      
2 N -0.544      
3 H 0.219      
4 H 0.219      
5 H 0.219      
6 H 0.090      
7 H 0.090      
8 H 0.090      


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 -2.046 2.046
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.507 0.000 0.000
y 0.000 -18.507 0.000
z 0.000 0.000 -18.917
Traceless
 xyz
x 0.205 0.000 0.000
y 0.000 0.205 0.000
z 0.000 0.000 -0.410
Polar
3z2-r2-0.821
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 20.235 0.000 0.000
y 0.000 20.235 0.000
z 0.000 0.000 7.483


<r2> (average value of r2) Å2
<r2> 32.033
(<r2>)1/2 5.660