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

using model chemistry: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-95.737821
Energy at 298.15K-95.745117
HF Energy-95.737821
Nuclear repulsion energy48.334913
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/6-311+G(3df,2p)
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 3384 3075 88.08      
2 A1 3212 2918 11.66      
3 A1 1557 1415 0.02      
4 A1 1517 1379 1018.75      
5 A1 1038 943 53.38      
6 A2 326 297 0.00      
7 E 3381 3072 1479.52      
7 E 3381 3072 1479.52      
8 E 3301 3000 4.63      
8 E 3301 3000 4.63      
9 E 1697 1542 412.33      
9 E 1697 1542 412.33      
10 E 1614 1467 34.61      
10 E 1614 1467 34.61      
11 E 1372 1247 13.64      
11 E 1372 1247 13.64      
12 E 957 870 194.53      
12 E 957 870 194.53      

Unscaled Zero Point Vibrational Energy (zpe) 17839.5 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 16208.9 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/6-311+G(3df,2p)
ABC
2.87895 0.68826 0.68826

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.787
N2 0.000 0.000 0.696
H3 0.000 -1.022 -1.128
H4 -0.885 0.511 -1.128
H5 0.885 0.511 -1.128
H6 0.000 0.944 1.076
H7 -0.818 -0.472 1.076
H8 0.818 -0.472 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48291.07771.07771.07772.08872.08872.0887
N21.48292.09142.09142.09141.01811.01811.0181
H31.07772.09141.77031.77032.95432.41502.4150
H41.07772.09141.77031.77032.41502.41502.9543
H51.07772.09141.77031.77032.41502.95432.4150
H62.08871.01812.95432.41502.41501.63591.6359
H72.08871.01812.41502.41502.95431.63591.6359
H82.08871.01812.41502.95432.41501.63591.6359

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 111.920 C1 N2 H7 111.920
C1 N2 H8 111.920 N2 C1 H3 108.490
N2 C1 H4 108.490 N2 C1 H5 108.490
H3 C1 H4 110.434 H3 C1 H5 110.434
H4 C1 H5 110.434 H6 N2 H7 106.916
H6 N2 H8 106.916 H7 N2 H8 106.916
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.543      
2 N 0.197      
3 H 0.200      
4 H 0.200      
5 H 0.200      
6 H 0.249      
7 H 0.249      
8 H 0.249      


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 -2.060 2.060
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.380 0.000 0.000
y 0.000 -23.380 0.000
z 0.000 0.000 -21.414
Traceless
 xyz
x -0.983 0.000 0.000
y 0.000 -0.983 0.000
z 0.000 0.000 1.965
Polar
3z2-r23.930
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 41.389 0.000 0.000
y 0.000 41.389 0.000
z 0.000 0.000 21.697


<r2> (average value of r2) Å2
<r2> 34.405
(<r2>)1/2 5.866