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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-95.722876
Energy at 298.15K 
HF Energy-95.722876
Nuclear repulsion energy46.011914
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 B1B95/3-21G
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 3104 2970 28.29      
2 A1 2289 2190 137.50      
3 A1 1299 1243 193.49      
4 A1 1069 1022 0.25      
5 A1 633 605 11.41      
6 A2 246 235 0.00      
7 E 3208 3069 15.81      
7 E 3208 3069 15.81      
8 E 1525 1459 0.89      
8 E 1525 1459 0.89      
9 E 1376 1317 811.55      
9 E 1376 1317 811.85      
10 E 1141 1092 11.86      
10 E 1141 1092 11.86      
11 E 818 783 10.27      
11 E 818 783 10.28      
12 E 1046i 1001i 4099.41      
12 E 1046i 1001i 4101.41      

Unscaled Zero Point Vibrational Energy (zpe) 11342.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 10850.8 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 B1B95/3-21G
ABC
2.49277 0.63740 0.63740

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.823
N2 0.000 0.000 0.734
H3 0.000 -1.041 -1.138
H4 -0.902 0.521 -1.138
H5 0.902 0.521 -1.138
H6 0.000 1.073 1.072
H7 -0.930 -0.537 1.072
H8 0.930 -0.537 1.072

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.55721.08781.08781.08782.17842.17842.1784
N21.55722.14192.14192.14191.12551.12551.1255
H31.08782.14191.80361.80363.05892.45012.4501
H41.08782.14191.80361.80362.45012.45013.0589
H51.08782.14191.80361.80362.45013.05892.4501
H62.17841.12553.05892.45012.45011.85931.8593
H72.17841.12552.45012.45013.05891.85931.8593
H82.17841.12552.45013.05892.45011.85931.8593

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 107.493 C1 N2 H7 107.493
C1 N2 H8 107.493 N2 C1 H3 106.804
N2 C1 H4 106.804 N2 C1 H5 106.804
H3 C1 H4 112.002 H3 C1 H5 112.002
H4 C1 H5 112.001 H6 N2 H7 111.375
H6 N2 H8 111.375 H7 N2 H8 111.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.513      
2 N -0.505      
3 H 0.222      
4 H 0.222      
5 H 0.222      
6 H 0.117      
7 H 0.117      
8 H 0.117      


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 -0.941 0.941
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.995 0.000 0.000
y 0.000 -15.995 0.000
z 0.000 0.000 -16.302
Traceless
 xyz
x 0.153 0.000 0.000
y 0.000 0.153 0.000
z 0.000 0.000 -0.306
Polar
3z2-r2-0.612
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 6.657 0.000 0.000
y 0.000 6.654 0.000
z 0.000 0.000 4.874


<r2> (average value of r2) Å2
<r2> 31.935
(<r2>)1/2 5.651