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: BLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at BLYP/cc-pVTZ
 hartrees
Energy at 0K-96.341214
Energy at 298.15K-96.348227
HF Energy-96.341214
Nuclear repulsion energy46.906813
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 BLYP/cc-pVTZ
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 2978 2969 105.47      
2 A1 2651 2643 53.09      
3 A1 1310 1307 84.23      
4 A1 1202 1198 171.61      
5 A1 810 807 28.78      
6 A2 263 262 0.00      
7 E 3062 3053 14.50      
7 E 3062 3053 14.49      
8 E 2308 2301 2485.40      
8 E 2308 2301 2485.41      
9 E 1432 1428 3.62      
9 E 1432 1428 3.63      
10 E 1310 1306 1.99      
10 E 1310 1306 2.00      
11 E 1161 1157 80.71      
11 E 1161 1157 80.74      
12 E 843 840 42.07      
12 E 843 840 42.12      

Unscaled Zero Point Vibrational Energy (zpe) 14723.1 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 14678.9 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 BLYP/cc-pVTZ
ABC
2.66056 0.65464 0.65464

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.811
N2 0.000 0.000 0.716
H3 0.000 -1.043 -1.139
H4 -0.903 0.521 -1.139
H5 0.903 0.521 -1.139
H6 0.000 1.004 1.089
H7 -0.870 -0.502 1.089
H8 0.870 -0.502 1.089

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.52721.09301.09301.09302.14932.14932.1493
N21.52722.12792.12792.12791.07131.07131.0713
H31.09302.12791.80601.80603.02552.45202.4520
H41.09302.12791.80601.80602.45202.45203.0255
H51.09302.12791.80601.80602.45203.02552.4520
H62.14931.07133.02552.45202.45201.73941.7394
H72.14931.07132.45202.45203.02551.73941.7394
H82.14931.07132.45203.02552.45201.73941.7394

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 110.377 C1 N2 H7 110.377
C1 N2 H8 110.377 N2 C1 H3 107.450
N2 C1 H4 107.450 N2 C1 H5 107.450
H3 C1 H4 111.415 H3 C1 H5 111.415
H4 C1 H5 111.415 H6 N2 H7 108.551
H6 N2 H8 108.551 H7 N2 H8 108.551
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.103      
2 N 0.334      
3 H 0.066      
4 H 0.066      
5 H 0.066      
6 H -0.143      
7 H -0.143      
8 H -0.143      


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 -1.278 1.278
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.897 0.000 0.000
y 0.000 -18.897 0.000
z 0.000 0.000 -18.015
Traceless
 xyz
x -0.441 0.000 0.000
y 0.000 -0.441 0.000
z 0.000 0.000 0.881
Polar
3z2-r21.763
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 13.181 0.000 0.000
y 0.000 13.183 -0.001
z 0.000 -0.001 9.493


<r2> (average value of r2) Å2
<r2> 32.893
(<r2>)1/2 5.735