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

using model chemistry: LSDA/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 LSDA/6-311G*
 hartrees
Energy at 0K-95.873093
Energy at 298.15K-95.880152
HF Energy-95.873093
Nuclear repulsion energy47.393049
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 LSDA/6-311G*
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 2974 2926 106.33      
2 A1 2696 2652 77.65      
3 A1 1290 1269 134.23      
4 A1 1210 1191 135.08      
5 A1 950 935 44.15      
6 A2 288 283 0.00      
7 E 3073 3023 14.93      
7 E 3073 3023 14.93      
8 E 2303 2266 2804.68      
8 E 2303 2266 2804.96      
9 E 1407 1384 13.46      
9 E 1407 1384 13.46      
10 E 1304 1283 0.36      
10 E 1304 1283 0.36      
11 E 1164 1145 58.07      
11 E 1164 1145 58.07      
12 E 828 814 101.20      
12 E 828 814 101.21      

Unscaled Zero Point Vibrational Energy (zpe) 14783.2 cm-1
Scaled (by 0.9837) Zero Point Vibrational Energy (zpe) 14542.2 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 LSDA/6-311G*
ABC
2.64110 0.68218 0.68218

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

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 0.697
H3 0.000 -1.046 -1.125
H4 -0.906 0.523 -1.125
H5 0.906 0.523 -1.125
H6 0.000 1.009 1.072
H7 -0.873 -0.504 1.072
H8 0.873 -0.504 1.072

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48321.09921.09921.09922.11472.11472.1147
N21.48322.10032.10032.10031.07621.07621.0762
H31.09922.10031.81151.81153.00792.42542.4254
H41.09922.10031.81151.81152.42542.42543.0079
H51.09922.10031.81151.81152.42543.00792.4254
H62.11471.07623.00792.42542.42541.74691.7469
H72.11471.07622.42542.42543.00791.74691.7470
H82.11471.07622.42543.00792.42541.74691.7470

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 110.419 C1 N2 H7 110.419
C1 N2 H8 110.419 N2 C1 H3 107.920
N2 C1 H4 107.920 N2 C1 H5 107.920
H3 C1 H4 110.977 H3 C1 H5 110.977
H4 C1 H5 110.977 H6 N2 H7 108.507
H6 N2 H8 108.507 H7 N2 H8 108.507
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.539      
2 N -0.554      
3 H 0.232      
4 H 0.232      
5 H 0.232      
6 H 0.132      
7 H 0.132      
8 H 0.132      


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 -1.137 1.137
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.300 0.000 0.000
y 0.000 -18.300 0.000
z 0.000 0.000 -18.073
Traceless
 xyz
x -0.113 0.000 0.000
y 0.000 -0.113 0.000
z 0.000 0.000 0.227
Polar
3z2-r20.454
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 12.571 0.000 0.000
y 0.000 12.573 -0.001
z 0.000 -0.001 8.836


<r2> (average value of r2) Å2
<r2> 32.069
(<r2>)1/2 5.663