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

using model chemistry: ROHF/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at ROHF/6-31+G**
 hartrees
Energy at 0K-95.692985
Energy at 298.15K-95.700259
HF Energy-95.692985
Nuclear repulsion energy48.255316
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 ROHF/6-31+G**
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 3373 2887 51.44      
2 A1 3264 2794 17.67      
3 A1 1568 1342 12.28      
4 A1 1557 1333 722.59      
5 A1 1046 896 53.72      
6 A2 306 262 0.00      
7 E 3387 2899 974.82      
7 E 3387 2899 974.82      
8 E 3357 2873 23.79      
8 E 3357 2873 23.79      
9 E 1727 1478 279.75      
9 E 1727 1478 279.75      
10 E 1631 1396 14.59      
10 E 1631 1396 14.59      
11 E 1370 1173 14.55      
11 E 1370 1173 14.55      
12 E 966 827 70.29      
12 E 966 827 70.29      

Unscaled Zero Point Vibrational Energy (zpe) 17994.2 cm-1
Scaled (by 0.8559) Zero Point Vibrational Energy (zpe) 15401.3 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 ROHF/6-31+G**
ABC
2.87166 0.68652 0.68652

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.787
N2 0.000 0.000 0.696
H3 0.000 -1.022 -1.131
H4 -0.885 0.511 -1.131
H5 0.885 0.511 -1.131
H6 0.000 0.947 1.081
H7 -0.820 -0.473 1.081
H8 0.820 -0.473 1.081

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48321.07861.07861.07862.09452.09452.0945
N21.48322.09362.09362.09361.02211.02211.0221
H31.07862.09361.77081.77082.96162.42232.4223
H41.07862.09361.77081.77082.42232.42232.9616
H51.07862.09361.77081.77082.42232.96162.4223
H62.09451.02212.96162.42232.42231.63981.6398
H72.09451.02212.42232.42232.96161.63981.6398
H82.09451.02212.42232.96162.42231.63981.6398

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 112.138 C1 N2 H7 112.138
C1 N2 H8 112.138 N2 C1 H3 108.588
N2 C1 H4 108.588 N2 C1 H5 108.588
H3 C1 H4 110.340 H3 C1 H5 110.340
H4 C1 H5 110.339 H6 N2 H7 106.678
H6 N2 H8 106.678 H7 N2 H8 106.678
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -2.034      
2 N -0.066      
3 H 0.246      
4 H 0.246      
5 H 0.246      
6 H 0.454      
7 H 0.454      
8 H 0.454      


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 -2.019 2.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.828 0.000 0.000
y 0.000 -22.827 0.000
z 0.000 0.000 -21.958
Traceless
 xyz
x -0.435 0.000 0.000
y 0.000 -0.434 0.000
z 0.000 0.000 0.870
Polar
3z2-r21.739
x2-y2-0.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 34.354
(<r2>)1/2 5.861