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

using model chemistry: B2PLYP/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 B2PLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-96.306336
Energy at 298.15K-96.313509
HF Energy-96.172036
Nuclear repulsion energy47.735149
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/6-311+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 3083 3083 47.35      
2 A1 3003 3003 12.41      
3 A1 1413 1413 15.17      
4 A1 1340 1340 524.59      
5 A1 944 944 50.22      
6 A2 299 299 0.00      
7 E 3180 3180 2.54      
7 E 3180 3180 2.54      
8 E 2918 2918 1312.02      
8 E 2918 2918 1313.44      
9 E 1509 1509 74.18      
9 E 1509 1509 74.29      
10 E 1497 1497 1.53      
10 E 1497 1497 1.53      
11 E 1253 1253 0.36      
11 E 1253 1253 0.36      
12 E 888 888 79.33      
12 E 888 888 79.54      

Unscaled Zero Point Vibrational Energy (zpe) 16286.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16286.2 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/6-311+G(3df,2p)
ABC
2.77369 0.67611 0.67611

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.795
N2 0.000 0.000 0.703
H3 0.000 -1.032 -1.131
H4 -0.893 0.516 -1.131
H5 0.893 0.516 -1.131
H6 0.000 0.973 1.079
H7 -0.842 -0.486 1.079
H8 0.842 -0.486 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49811.08491.08491.08492.11142.11142.1114
N21.49812.10442.10442.10441.04281.04281.0428
H31.08492.10441.78671.78672.98362.42732.4273
H41.08492.10441.78671.78672.42732.42732.9836
H51.08492.10441.78671.78672.42732.98362.4273
H62.11141.04282.98362.42732.42731.68471.6847
H72.11141.04282.42732.42732.98361.68471.6847
H82.11141.04282.42732.98362.42731.68471.6847

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 111.134 C1 N2 H7 111.134
C1 N2 H8 111.134 N2 C1 H3 108.046
N2 C1 H4 108.046 N2 C1 H5 108.046
H3 C1 H4 110.858 H3 C1 H5 110.858
H4 C1 H5 110.858 H6 N2 H7 107.759
H6 N2 H8 107.759 H7 N2 H8 107.759
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.495      
2 N 0.276      
3 H 0.210      
4 H 0.210      
5 H 0.210      
6 H 0.196      
7 H 0.196      
8 H 0.196      


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 -1.389 1.389
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.276 0.000 0.000
y 0.000 -22.276 0.000
z 0.000 0.000 -19.529
Traceless
 xyz
x -1.373 0.000 0.000
y 0.000 -1.373 0.000
z 0.000 0.000 2.747
Polar
3z2-r25.493
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 26.439 0.000 0.000
y 0.000 26.417 0.010
z 0.000 0.010 16.036


<r2> (average value of r2) Å2
<r2> 33.956
(<r2>)1/2 5.827