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

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-19.035723
Energy at 298.15K-19.042803
HF Energy-19.035723
Nuclear repulsion energy30.362535
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 B3LYP/CEP-121G
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 3018 2941 89.59      
2 A1 2702 2633 61.31      
3 A1 1376 1341 54.18      
4 A1 1295 1262 185.40      
5 A1 872 850 26.70      
6 A2 257 250 0.00      
7 E 3138 3058 14.37      
7 E 3138 3058 14.35      
8 E 2410 2348 2954.23      
8 E 2410 2348 2953.89      
9 E 1492 1454 1.67      
9 E 1492 1454 1.67      
10 E 1387 1351 0.00      
10 E 1387 1351 0.00      
11 E 1217 1186 41.75      
11 E 1217 1186 41.76      
12 E 874 851 62.91      
12 E 874 851 62.94      

Unscaled Zero Point Vibrational Energy (zpe) 15276.6 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 14887.0 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 B3LYP/CEP-121G
ABC
2.66632 0.64690 0.64690

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

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 0.722
H3 0.000 -1.041 -1.148
H4 -0.902 0.521 -1.148
H5 0.902 0.521 -1.148
H6 0.000 1.004 1.095
H7 -0.869 -0.502 1.095
H8 0.869 -0.502 1.095

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.53801.09291.09291.09292.15802.15802.1580
N21.53802.14062.14062.14061.07041.07041.0704
H31.09292.14061.80331.80333.03492.46502.4650
H41.09292.14061.80331.80332.46502.46503.0349
H51.09292.14061.80331.80332.46503.03492.4650
H62.15801.07043.03492.46502.46501.73821.7382
H72.15801.07042.46502.46503.03491.73821.7382
H82.15801.07042.46503.03492.46501.73821.7382

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 110.359 C1 N2 H7 110.359
C1 N2 H8 110.359 N2 C1 H3 107.704
N2 C1 H4 107.704 N2 C1 H5 107.704
H3 C1 H4 111.179 H3 C1 H5 111.179
H4 C1 H5 111.179 H6 N2 H7 108.569
H6 N2 H8 108.569 H7 N2 H8 108.569
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.284      
2 N -0.211      
3 H 0.135      
4 H 0.135      
5 H 0.135      
6 H 0.030      
7 H 0.030      
8 H 0.030      


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 -1.374 1.374
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.677 0.000 0.000
y 0.000 -18.677 0.000
z 0.000 0.000 -17.939
Traceless
 xyz
x -0.369 0.000 0.000
y 0.000 -0.369 0.000
z 0.000 0.000 0.738
Polar
3z2-r21.475
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 13.001 0.000 0.000
y 0.000 13.003 -0.001
z 0.000 -0.001 8.587


<r2> (average value of r2) Å2
<r2> 30.605
(<r2>)1/2 5.532