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

using model chemistry: HF/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-95.734481
Energy at 298.15K-95.741813
HF Energy-95.734481
Nuclear repulsion energy48.232077
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/cc-pVQZ
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 3248 2951 0.24      
2 A1 3213 2919 32.74      
3 A1 1544 1402 5.04      
4 A1 1463 1329 440.68      
5 A1 1030 936 42.89      
6 A2 368 334 0.00      
7 E 3303 3001 8.27      
7 E 3303 3001 8.27      
8 E 3074 2792 5615.46      
8 E 3074 2792 5615.46      
9 E 1625 1476 389.32      
9 E 1625 1476 389.32      
10 E 1608 1461 21.42      
10 E 1608 1461 21.42      
11 E 1359 1235 4.26      
11 E 1359 1235 4.26      
12 E 952 865 228.80      
12 E 952 865 228.80      

Unscaled Zero Point Vibrational Energy (zpe) 17354.2 cm-1
Scaled (by 0.9084) Zero Point Vibrational Energy (zpe) 15764.6 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/cc-pVQZ
ABC
2.85987 0.68670 0.68670

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.788
N2 0.000 0.000 0.697
H3 0.000 -1.022 -1.127
H4 -0.885 0.511 -1.127
H5 0.885 0.511 -1.127
H6 0.000 0.951 1.078
H7 -0.824 -0.476 1.078
H8 0.824 -0.476 1.078

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48471.07691.07691.07692.09472.09472.0947
N21.48472.09042.09042.09041.02491.02491.0249
H31.07692.09041.77051.77052.95912.41662.4166
H41.07692.09041.77051.77052.41662.41662.9591
H51.07692.09041.77051.77052.41662.95912.4166
H62.09471.02492.95912.41662.41661.64741.6474
H72.09471.02492.41662.41662.95911.64741.6474
H82.09471.02492.41662.95912.41661.64741.6474

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 111.863 C1 N2 H7 111.863
C1 N2 H8 111.863 N2 C1 H3 108.335
N2 C1 H4 108.335 N2 C1 H5 108.335
H3 C1 H4 110.583 H3 C1 H5 110.583
H4 C1 H5 110.583 H6 N2 H7 106.977
H6 N2 H8 106.977 H7 N2 H8 106.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.158      
2 N 0.885      
3 H 0.018      
4 H 0.018      
5 H 0.018      
6 H -0.366      
7 H -0.366      
8 H -0.366      


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 -2.150 2.150
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.570 0.000 0.000
y 0.000 -20.570 0.000
z 0.000 0.000 -19.526
Traceless
 xyz
x -0.522 0.000 0.000
y 0.000 -0.522 0.000
z 0.000 0.000 1.044
Polar
3z2-r22.088
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 27.562 0.000 0.000
y 0.000 27.562 0.000
z 0.000 0.000 11.820


<r2> (average value of r2) Å2
<r2> 32.900
(<r2>)1/2 5.736