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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-96.186457
Energy at 298.15K-96.192911
HF Energy-96.080664
Nuclear repulsion energy46.927041
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 3116 2958 44.41      
2 A1 2511 2383 84.77      
3 A1 1354 1285 112.95      
4 A1 1150 1091 18.54      
5 A1 838 795 20.98      
6 A2 285 271 0.00      
7 E 3215 3051 14.12      
7 E 3215 3051 14.12      
8 E 1617 1535 2041.75      
8 E 1617 1535 2041.62      
9 E 1518 1441 169.58      
9 E 1518 1441 169.67      
10 E 1239 1177 0.26      
10 E 1239 1177 0.26      
11 E 871 827 0.01      
11 E 871 827 0.01      
12 E 437 415 2983.14      
12 E 437 415 2984.18      

Unscaled Zero Point Vibrational Energy (zpe) 13523.6 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 12836.6 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
2.59841 0.66537 0.66537

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 -0.800
N2 0.000 0.000 0.712
H3 0.000 -1.038 -1.130
H4 -0.899 0.519 -1.130
H5 0.899 0.519 -1.130
H6 0.000 1.034 1.068
H7 -0.896 -0.517 1.068
H8 0.896 -0.517 1.068

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.51221.08891.08891.08892.13482.13482.1348
N21.51222.11472.11472.11471.09341.09341.0934
H31.08892.11471.79711.79713.02042.42992.4299
H41.08892.11471.79711.79712.42992.42993.0204
H51.08892.11471.79711.79712.42993.02042.4299
H62.13481.09343.02042.42992.42991.79101.7910
H72.13481.09342.42992.42993.02041.79101.7910
H82.13481.09342.42993.02042.42991.79101.7910

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 108.971 C1 N2 H7 108.971
C1 N2 H8 108.971 N2 C1 H3 107.665
N2 C1 H4 107.665 N2 C1 H5 107.665
H3 C1 H4 111.215 H3 C1 H5 111.215
H4 C1 H5 111.215 H6 N2 H7 109.967
H6 N2 H8 109.967 H7 N2 H8 109.967
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 -0.354      
2 N -0.402      
3 H 0.165      
4 H 0.165      
5 H 0.165      
6 H 0.087      
7 H 0.087      
8 H 0.087      


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 -1.059 1.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.960 0.000 0.000
y 0.000 -16.960 0.000
z 0.000 0.000 -16.751
Traceless
 xyz
x -0.105 0.000 0.000
y 0.000 -0.105 0.000
z 0.000 0.000 0.209
Polar
3z2-r20.419
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 7.940 0.000 0.000
y 0.000 7.941 0.000
z 0.000 0.000 5.156


<r2> (average value of r2) Å2
<r2> 31.631
(<r2>)1/2 5.624