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

using model chemistry: ROHF/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 ROHF/6-311+G(3df,2p)
 hartrees
Energy at 0K-95.737436
Energy at 298.15K-95.744732
HF Energy-95.737436
Nuclear repulsion energy48.340636
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 ROHF/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 3397 3087 98.20      
2 A1 3213 2919 10.14      
3 A1 1558 1416 0.22      
4 A1 1520 1381 1019.82      
5 A1 1038 943 52.56      
6 A2 326 296 0.00      
7 E 3398 3087 1333.00      
7 E 3398 3087 1333.01      
8 E 3302 3000 8.94      
8 E 3302 3000 8.94      
9 E 1700 1545 420.49      
9 E 1700 1545 420.49      
10 E 1614 1467 35.92      
10 E 1614 1467 35.92      
11 E 1372 1247 13.49      
11 E 1372 1247 13.49      
12 E 957 870 191.02      
12 E 957 870 191.02      

Unscaled Zero Point Vibrational Energy (zpe) 17870.9 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 16235.7 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 ROHF/6-311+G(3df,2p)
ABC
2.88072 0.68824 0.68824

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/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 1.077
H7 -0.817 -0.472 1.077
H8 0.817 -0.472 1.077

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48291.07771.07771.07772.08852.08852.0885
N21.48292.09152.09152.09151.01761.01761.0176
H31.07772.09151.77011.77012.95412.41512.4151
H41.07772.09151.77011.77012.41512.41512.9541
H51.07772.09151.77011.77012.41512.95412.4151
H62.08851.01762.95412.41512.41511.63501.6350
H72.08851.01762.41512.41512.95411.63501.6350
H82.08851.01762.41512.95412.41511.63501.6350

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 111.932 C1 N2 H7 111.932
C1 N2 H8 111.932 N2 C1 H3 108.498
N2 C1 H4 108.498 N2 C1 H5 108.498
H3 C1 H4 110.426 H3 C1 H5 110.426
H4 C1 H5 110.427 H6 N2 H7 106.902
H6 N2 H8 106.902 H7 N2 H8 106.902
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.555      
2 N 0.200      
3 H 0.200      
4 H 0.200      
5 H 0.200      
6 H 0.251      
7 H 0.251      
8 H 0.251      


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 -2.063 2.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.432 0.000 0.000
y 0.000 -23.431 0.000
z 0.000 0.000 -21.458
Traceless
 xyz
x -0.988 0.000 0.000
y 0.000 -0.986 0.000
z 0.000 0.000 1.974
Polar
3z2-r23.947
x2-y2-0.001
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 34.433
(<r2>)1/2 5.868