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

using model chemistry: HF/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-95.722980
Energy at 298.15K-95.730261
HF Energy-95.722980
Nuclear repulsion energy48.126380
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/aug-cc-pVDZ
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 3409 3104 142.92      
2 A1 3229 2940 12.47      
3 A1 1563 1423 638.69      
4 A1 1539 1401 96.97      
5 A1 1034 941 46.16      
6 A2 312 284 0.00      
7 E 3421 3115 4237.88      
7 E 3421 3115 4237.88      
8 E 3332 3034 0.12      
8 E 3332 3034 0.12      
9 E 1682 1532 955.36      
9 E 1682 1532 955.36      
10 E 1593 1450 12.18      
10 E 1593 1450 12.18      
11 E 1361 1239 6.63      
11 E 1361 1239 6.63      
12 E 960 874 194.22      
12 E 960 874 194.22      

Unscaled Zero Point Vibrational Energy (zpe) 17890.1 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 16290.7 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 HF/aug-cc-pVDZ
ABC
2.85591 0.68193 0.68193

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.791
N2 0.000 0.000 0.699
H3 0.000 -1.029 -1.133
H4 -0.891 0.514 -1.133
H5 0.891 0.514 -1.133
H6 0.000 0.946 1.083
H7 -0.819 -0.473 1.083
H8 0.819 -0.473 1.083

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48971.08411.08411.08412.09892.09892.0989
N21.48972.10082.10082.10081.02061.02061.0206
H31.08412.10081.78181.78182.96782.42682.4268
H41.08412.10081.78181.78182.42682.42682.9678
H51.08412.10081.78181.78182.42682.96782.4268
H62.09891.02062.96782.42682.42681.63771.6377
H72.09891.02062.42682.42682.96781.63771.6377
H82.09891.02062.42682.96782.42681.63771.6377

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 112.112 C1 N2 H7 112.112
C1 N2 H8 112.112 N2 C1 H3 108.391
N2 C1 H4 108.391 N2 C1 H5 108.391
H3 C1 H4 110.530 H3 C1 H5 110.530
H4 C1 H5 110.530 H6 N2 H7 106.706
H6 N2 H8 106.706 H7 N2 H8 106.706
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.097      
2 N -0.113      
3 H -0.083      
4 H -0.083      
5 H -0.083      
6 H -0.245      
7 H -0.245      
8 H -0.245      


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 -4.028 4.028
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.037 0.000 0.000
y 0.000 -26.037 0.000
z 0.000 0.000 -27.377
Traceless
 xyz
x 0.670 0.000 0.000
y 0.000 0.670 0.000
z 0.000 0.000 -1.340
Polar
3z2-r2-2.680
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 77.244 0.000 0.000
y 0.000 77.244 0.000
z 0.000 0.000 34.096


<r2> (average value of r2) Å2
<r2> 36.938
(<r2>)1/2 6.078