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

using model chemistry: mPW1PW91/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at mPW1PW91/Def2TZVPP
 hartrees
Energy at 0K-96.369321
Energy at 298.15K-96.376434
HF Energy-96.369321
Nuclear repulsion energy47.663265
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 mPW1PW91/Def2TZVPP
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 3079 3079 78.05      
2 A1 2858 2858 1.69      
3 A1 1370 1370 49.57      
4 A1 1258 1258 292.43      
5 A1 941 941 44.42      
6 A2 284 284 0.00      
7 E 3176 3176 2.56      
7 E 3176 3176 2.56      
8 E 2507 2507 4456.91      
8 E 2507 2507 4457.77      
9 E 1484 1484 1.22      
9 E 1484 1484 1.22      
10 E 1375 1375 4.35      
10 E 1375 1375 4.33      
11 E 1215 1215 40.44      
11 E 1215 1215 40.48      
12 E 868 868 121.09      
12 E 868 868 120.90      

Unscaled Zero Point Vibrational Energy (zpe) 15520.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15520.6 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 mPW1PW91/Def2TZVPP
ABC
2.73806 0.67890 0.67890

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.792
N2 0.000 0.000 0.701
H3 0.000 -1.033 -1.129
H4 -0.895 0.517 -1.129
H5 0.895 0.517 -1.129
H6 0.000 0.984 1.076
H7 -0.853 -0.492 1.076
H8 0.853 -0.492 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49251.08661.08661.08662.11142.11142.1114
N21.49252.10112.10112.10111.05361.05361.0536
H31.08662.10111.78921.78922.98872.42512.4251
H41.08662.10111.78921.78922.42512.42512.9887
H51.08662.10111.78921.78922.42512.98872.4251
H62.11141.05362.98872.42512.42511.70521.7052
H72.11141.05362.42512.42512.98871.70521.7052
H82.11141.05362.42512.98872.42511.70521.7052

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 110.870 C1 N2 H7 110.870
C1 N2 H8 110.870 N2 C1 H3 108.074
N2 C1 H4 108.074 N2 C1 H5 108.074
H3 C1 H4 110.831 H3 C1 H5 110.831
H4 C1 H5 110.831 H6 N2 H7 108.037
H6 N2 H8 108.037 H7 N2 H8 108.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.056      
2 N 0.583      
3 H 0.053      
4 H 0.053      
5 H 0.053      
6 H -0.229      
7 H -0.229      
8 H -0.229      


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 -1.630 1.630
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.186 0.000 0.000
y 0.000 -19.186 0.000
z 0.000 0.000 -18.316
Traceless
 xyz
x -0.435 0.000 0.000
y 0.000 -0.435 0.000
z 0.000 0.000 0.870
Polar
3z2-r21.740
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 16.813 0.000 0.000
y 0.000 16.818 -0.002
z 0.000 -0.002 9.230


<r2> (average value of r2) Å2
<r2> 32.407
(<r2>)1/2 5.693