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

using model chemistry: HF/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 HF/TZVP
 hartrees
Energy at 0K-95.716369
Energy at 298.15K-95.723642
HF Energy-95.716369
Nuclear repulsion energy48.051407
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 HF/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 3218 2924 41.83      
2 A1 3161 2872 3.42      
3 A1 1531 1391 6.78      
4 A1 1463 1329 392.05      
5 A1 1015 922 54.72      
6 A2 319 290 0.00      
7 E 3311 3008 0.11      
7 E 3311 3008 0.11      
8 E 2860 2599 6463.15      
8 E 2860 2599 6463.15      
9 E 1623 1475 24.56      
9 E 1623 1475 24.56      
10 E 1592 1447 213.74      
10 E 1592 1447 213.74      
11 E 1349 1226 16.36      
11 E 1349 1226 16.36      
12 E 952 865 210.70      
12 E 952 865 210.70      

Unscaled Zero Point Vibrational Energy (zpe) 17040.1 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 15482.6 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 HF/TZVP
ABC
2.83314 0.68251 0.68251

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.790
N2 0.000 0.000 0.699
H3 0.000 -1.024 -1.130
H4 -0.886 0.512 -1.130
H5 0.886 0.512 -1.130
H6 0.000 0.959 1.080
H7 -0.831 -0.480 1.080
H8 0.831 -0.480 1.080

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48941.07851.07851.07852.10182.10182.1018
N21.48942.09612.09612.09611.03211.03211.0321
H31.07852.09611.77291.77292.96912.42272.4227
H41.07852.09611.77291.77292.42272.42272.9691
H51.07852.09611.77291.77292.42272.96912.4227
H62.10181.03212.96912.42272.42271.66151.6615
H72.10181.03212.42272.42272.96911.66151.6615
H82.10181.03212.42272.96912.42271.66151.6615

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 111.646 C1 N2 H7 111.646
C1 N2 H8 111.646 N2 C1 H3 108.363
N2 C1 H4 108.363 N2 C1 H5 108.363
H3 C1 H4 110.557 H3 C1 H5 110.557
H4 C1 H5 110.557 H6 N2 H7 107.212
H6 N2 H8 107.212 H7 N2 H8 107.212
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.008      
2 N 0.452      
3 H 0.046      
4 H 0.046      
5 H 0.046      
6 H -0.199      
7 H -0.199      
8 H -0.199      


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 -2.059 2.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.514 0.000 0.000
y 0.000 -19.514 0.000
z 0.000 0.000 -19.055
Traceless
 xyz
x -0.229 0.000 0.000
y 0.000 -0.229 0.000
z 0.000 0.000 0.458
Polar
3z2-r20.917
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 20.337 0.000 0.000
y 0.000 20.337 0.000
z 0.000 0.000 8.566


<r2> (average value of r2) Å2
<r2> 32.494
(<r2>)1/2 5.700