return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-311G*
 hartrees
Energy at 0K-96.252369
Energy at 298.15K-96.259485
HF Energy-96.252369
Nuclear repulsion energy47.510288
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 HSEh1PBE/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 3076 2952 91.00      
2 A1 2793 2680 53.26      
3 A1 1363 1308 99.12      
4 A1 1276 1224 175.76      
5 A1 943 905 45.11      
6 A2 288 276 0.00      
7 E 3176 3048 11.04      
7 E 3176 3048 11.06      
8 E 2324 2230 4601.73      
8 E 2324 2230 4605.12      
9 E 1486 1426 10.62      
9 E 1486 1426 10.60      
10 E 1387 1331 4.05      
10 E 1387 1331 4.05      
11 E 1213 1164 107.49      
11 E 1213 1164 107.42      
12 E 868 833 125.09      
12 E 868 833 125.17      

Unscaled Zero Point Vibrational Energy (zpe) 15321.4 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 14702.5 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 HSEh1PBE/6-311G*
ABC
2.70335 0.67722 0.67722

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.792
N2 0.000 0.000 0.702
H3 0.000 -1.036 -1.129
H4 -0.897 0.518 -1.129
H5 0.897 0.518 -1.129
H6 0.000 0.994 1.076
H7 -0.861 -0.497 1.076
H8 0.861 -0.497 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49391.08941.08941.08942.11612.11612.1161
N21.49392.10322.10322.10321.06241.06241.0624
H31.08942.10321.79461.79462.99692.42712.4271
H41.08942.10321.79461.79462.42712.42712.9969
H51.08942.10321.79461.79462.42712.99692.4271
H62.11611.06242.99692.42712.42711.72241.7224
H72.11611.06242.42712.42712.99691.72241.7224
H82.11611.06242.42712.99692.42711.72241.7224

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 110.608 C1 N2 H7 110.608
C1 N2 H8 110.608 N2 C1 H3 107.985
N2 C1 H4 107.985 N2 C1 H5 107.985
H3 C1 H4 110.916 H3 C1 H5 110.916
H4 C1 H5 110.916 H6 N2 H7 108.311
H6 N2 H8 108.311 H7 N2 H8 108.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.474      
2 N -0.514      
3 H 0.223      
4 H 0.223      
5 H 0.223      
6 H 0.106      
7 H 0.106      
8 H 0.106      


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 -1.468 1.468
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.224 0.000 0.000
y 0.000 -18.224 0.000
z 0.000 0.000 -18.157
Traceless
 xyz
x -0.034 0.000 0.000
y 0.000 -0.034 0.000
z 0.000 0.000 0.067
Polar
3z2-r20.134
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 14.188 0.000 0.000
y 0.000 14.199 -0.002
z 0.000 -0.002 8.384


<r2> (average value of r2) Å2
<r2> 32.060
(<r2>)1/2 5.662