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

using model chemistry: B2PLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-96.131177
Energy at 298.15K-96.138045
HF Energy-96.054872
Nuclear repulsion energy46.528535
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 B2PLYP/6-31G
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 3105 3105 38.78      
2 A1 2495 2495 91.24      
3 A1 1373 1373 115.77      
4 A1 1171 1171 35.42      
5 A1 774 774 3.18      
6 A2 261 261 0.00      
7 E 3212 3212 15.63      
7 E 3212 3212 15.64      
8 E 1616 1616 2621.05      
8 E 1616 1616 2620.96      
9 E 1536 1536 88.61      
9 E 1536 1536 88.70      
10 E 1234 1234 3.97      
10 E 1234 1234 3.97      
11 E 932 932 794.08      
11 E 932 932 793.42      
12 E 799 799 1478.45      
12 E 799 799 1480.20      

Unscaled Zero Point Vibrational Energy (zpe) 13917.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 13917.8 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 B2PLYP/6-31G
ABC
2.60357 0.64611 0.64611

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.816
N2 0.000 0.000 0.723
H3 0.000 -1.039 -1.144
H4 -0.899 0.519 -1.144
H5 0.899 0.519 -1.144
H6 0.000 1.031 1.088
H7 -0.893 -0.515 1.088
H8 0.893 -0.515 1.088

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.53931.08941.08941.08942.16502.16502.1650
N21.53932.13722.13722.13721.09341.09341.0934
H31.08942.13721.79901.79903.04412.46052.4605
H41.08942.13721.79901.79902.46052.46053.0441
H51.08942.13721.79901.79902.46053.04412.4605
H62.16501.09343.04412.46052.46051.78561.7856
H72.16501.09342.46052.46053.04411.78561.7856
H82.16501.09342.46053.04412.46051.78561.7856

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 109.473 C1 N2 H7 109.473
C1 N2 H8 109.473 N2 C1 H3 107.553
N2 C1 H4 107.553 N2 C1 H5 107.553
H3 C1 H4 111.319 H3 C1 H5 111.319
H4 C1 H5 111.319 H6 N2 H7 109.469
H6 N2 H8 109.469 H7 N2 H8 109.469
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.297      
2 N -0.413      
3 H 0.155      
4 H 0.155      
5 H 0.155      
6 H 0.082      
7 H 0.082      
8 H 0.082      


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 -1.115 1.115
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.035 0.000 0.000
y 0.000 -17.035 0.000
z 0.000 0.000 -16.843
Traceless
 xyz
x -0.096 0.000 0.000
y 0.000 -0.096 0.000
z 0.000 0.000 0.192
Polar
3z2-r20.385
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 7.926 0.000 0.000
y 0.000 7.926 0.000
z 0.000 0.000 5.231


<r2> (average value of r2) Å2
<r2> 32.161
(<r2>)1/2 5.671