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

using model chemistry: ROHF/6-311G**

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/6-311G**
 hartrees
Energy at 0K-95.698972
Energy at 298.15K-95.706224
HF Energy-95.698972
Nuclear repulsion energy47.982422
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/6-311G**
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 3213 2932 39.49      
2 A1 3105 2834 1.61      
3 A1 1523 1390 27.77      
4 A1 1429 1304 254.83      
5 A1 1022 932 55.37      
6 A2 311 283 0.00      
7 E 3305 3016 0.49      
7 E 3305 3016 0.49      
8 E 2585 2359 10371.52      
8 E 2585 2359 10371.53      
9 E 1611 1470 0.07      
9 E 1611 1470 0.07      
10 E 1560 1424 167.35      
10 E 1560 1424 167.36      
11 E 1334 1218 75.33      
11 E 1334 1218 75.33      
12 E 935 853 302.57      
12 E 935 853 302.57      

Unscaled Zero Point Vibrational Energy (zpe) 16630.6 cm-1
Scaled (by 0.9126) Zero Point Vibrational Energy (zpe) 15177.1 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/6-311G**
ABC
2.80967 0.68337 0.68337

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.789
N2 0.000 0.000 0.698
H3 0.000 -1.024 -1.130
H4 -0.887 0.512 -1.130
H5 0.887 0.512 -1.130
H6 0.000 0.967 1.079
H7 -0.837 -0.483 1.079
H8 0.837 -0.483 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48691.07981.07981.07982.10292.10292.1029
N21.48692.09562.09562.09561.03911.03911.0391
H31.07982.09561.77451.77452.97392.42332.4233
H41.07982.09561.77451.77452.42332.42332.9739
H51.07982.09561.77451.77452.42332.97392.4233
H62.10291.03912.97392.42332.42331.67471.6747
H72.10291.03912.42332.42332.97391.67471.6747
H82.10291.03912.42332.97392.42331.67471.6747

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 111.488 C1 N2 H7 111.488
C1 N2 H8 111.488 N2 C1 H3 108.423
N2 C1 H4 108.423 N2 C1 H5 108.423
H3 C1 H4 110.499 H3 C1 H5 110.499
H4 C1 H5 110.499 H6 N2 H7 107.381
H6 N2 H8 107.381 H7 N2 H8 107.381
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.048      
2 N -0.069      
3 H 0.099      
4 H 0.099      
5 H 0.099      
6 H -0.060      
7 H -0.060      
8 H -0.060      


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 -2.065 2.065
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.435 0.000 0.000
y 0.000 -18.430 0.005
z 0.000 0.005 -18.847
Traceless
 xyz
x 0.204 0.000 0.000
y 0.000 0.211 0.005
z 0.000 0.005 -0.415
Polar
3z2-r2-0.830
x2-y2-0.005
xy0.000
xz0.000
yz0.005


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> 32.018
(<r2>)1/2 5.658