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

using model chemistry: PBEPBEultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at PBEPBEultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-96.203459
Energy at 298.15K 
HF Energy-96.203459
Nuclear repulsion energy46.664470
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 PBEPBEultrafine/6-31G(2df,p)
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 2977 2947 76.51      
2 A1 2392 2368 106.29      
3 A1 1243 1230 149.94      
4 A1 1069 1058 5.85      
5 A1 805 797 18.68      
6 A2 262 260 0.00      
7 E 3080 3048 18.83      
7 E 3080 3048 18.83      
8 E 1617 1600 1839.25      
8 E 1617 1600 1839.33      
9 E 1403 1388 68.90      
9 E 1403 1388 68.89      
10 E 1164 1152 21.23      
10 E 1164 1152 21.23      
11 E 827 818 40.17      
11 E 827 818 40.17      
12 E 165i 163i 2018.60      
12 E 165i 163i 2018.46      

Unscaled Zero Point Vibrational Energy (zpe) 12299.4 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 12172.7 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 PBEPBEultrafine/6-31G(2df,p)
ABC
2.51945 0.66399 0.66399

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.800
N2 0.000 0.000 0.717
H3 0.000 -1.050 -1.125
H4 -0.909 0.525 -1.125
H5 0.909 0.525 -1.125
H6 0.000 1.054 1.051
H7 -0.912 -0.527 1.051
H8 0.912 -0.527 1.051

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.51701.09951.09951.09952.12912.12912.1291
N21.51702.12102.12102.12101.10511.10511.1051
H31.09952.12101.81891.81893.02662.41682.4168
H41.09952.12101.81891.81892.41682.41683.0266
H51.09952.12101.81891.81892.41683.02662.4168
H62.12911.10513.02662.41682.41681.82501.8250
H72.12911.10512.41682.41683.02661.82501.8250
H82.12911.10512.41683.02662.41681.82501.8250

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 107.546 C1 N2 H7 107.546
C1 N2 H8 107.546 N2 C1 H3 107.236
N2 C1 H4 107.236 N2 C1 H5 107.236
H3 C1 H4 111.611 H3 C1 H5 111.611
H4 C1 H5 111.611 H6 N2 H7 111.326
H6 N2 H8 111.326 H7 N2 H8 111.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.342      
2 N -0.110      
3 H 0.130      
4 H 0.130      
5 H 0.130      
6 H 0.021      
7 H 0.021      
8 H 0.021      


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 -0.803 0.803
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.774 0.000 0.000
y 0.000 -16.774 0.000
z 0.000 0.000 -16.470
Traceless
 xyz
x -0.152 0.000 0.000
y 0.000 -0.152 0.000
z 0.000 0.000 0.303
Polar
3z2-r20.606
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 7.893 0.000 0.000
y 0.000 7.893 0.000
z 0.000 0.000 5.664


<r2> (average value of r2) Å2
<r2> 31.601
(<r2>)1/2 5.621