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

using model chemistry: B2PLYP/TZVP

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/TZVP
 hartrees
Energy at 0K-96.277238
Energy at 298.15K-96.284381
HF Energy-96.156713
Nuclear repulsion energy47.435203
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/TZVP
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 3091 2950 70.55      
2 A1 2835 2706 8.39      
3 A1 1389 1325 51.41      
4 A1 1302 1242 233.41      
5 A1 905 864 34.20      
6 A2 297 284 0.00      
7 E 3190 3044 4.25      
7 E 3190 3044 4.25      
8 E 2538 2422 2985.10      
8 E 2538 2422 2985.00      
9 E 1504 1436 0.81      
9 E 1504 1436 0.81      
10 E 1396 1332 3.01      
10 E 1396 1332 3.00      
11 E 1229 1173 36.50      
11 E 1229 1173 36.51      
12 E 884 843 73.15      
12 E 884 843 73.05      

Unscaled Zero Point Vibrational Energy (zpe) 15649.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 14936.2 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/TZVP
ABC
2.72566 0.66962 0.66962

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.799
N2 0.000 0.000 0.707
H3 0.000 -1.034 -1.133
H4 -0.895 0.517 -1.133
H5 0.895 0.517 -1.133
H6 0.000 0.989 1.081
H7 -0.856 -0.494 1.081
H8 0.856 -0.494 1.081

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50661.08591.08591.08592.12462.12462.1246
N21.50662.11012.11012.11011.05701.05701.0570
H31.08592.11011.79011.79012.99822.43392.4339
H41.08592.11011.79011.79012.43392.43392.9982
H51.08592.11011.79011.79012.43392.99822.4339
H62.12461.05702.99822.43392.43391.71241.7124
H72.12461.05702.43392.43392.99821.71241.7124
H82.12461.05702.43392.99822.43391.71241.7124

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 110.720 C1 N2 H7 110.720
C1 N2 H8 110.720 N2 C1 H3 107.866
N2 C1 H4 107.866 N2 C1 H5 107.866
H3 C1 H4 111.028 H3 C1 H5 111.028
H4 C1 H5 111.028 H6 N2 H7 108.194
H6 N2 H8 108.194 H7 N2 H8 108.195
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.116      
2 N 0.317      
3 H 0.069      
4 H 0.069      
5 H 0.069      
6 H -0.136      
7 H -0.136      
8 H -0.136      


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 -1.513 1.513
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.243 0.000 0.000
y 0.000 -19.243 0.000
z 0.000 0.000 -18.369
Traceless
 xyz
x -0.437 0.000 0.000
y 0.000 -0.437 0.000
z 0.000 0.000 0.874
Polar
3z2-r21.748
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 13.830 0.000 0.000
y 0.000 13.830 -0.001
z 0.000 -0.001 8.711


<r2> (average value of r2) Å2
<r2> 32.663
(<r2>)1/2 5.715