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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-96.262405
Energy at 298.15K 
HF Energy-96.262405
Nuclear repulsion energy46.433169
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 B97D3/6-31G*
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 3009 2950 74.40      
2 A1 2301 2256 100.46      
3 A1 1274 1249 143.30      
4 A1 1065 1044 6.95      
5 A1 721 707 12.18      
6 A2 263 258 0.00      
7 E 3109 3048 25.01      
7 E 3109 3048 25.03      
8 E 1484 1455 711.69      
8 E 1484 1455 711.47      
9 E 1434 1406 823.16      
9 E 1434 1406 824.64      
10 E 1163 1140 20.85      
10 E 1163 1140 20.86      
11 E 827 811 38.77      
11 E 827 811 38.81      
12 E 751i 736i 3731.90      
12 E 751i 736i 3735.02      

Unscaled Zero Point Vibrational Energy (zpe) 11581.4 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 11354.5 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 B97D3/6-31G*
ABC
2.51418 0.65502 0.65502

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.807
N2 0.000 0.000 0.720
H3 0.000 -1.047 -1.132
H4 -0.907 0.524 -1.132
H5 0.907 0.524 -1.132
H6 0.000 1.059 1.066
H7 -0.917 -0.529 1.066
H8 0.917 -0.529 1.066

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.52711.09641.09641.09642.15142.15142.1514
N21.52712.12762.12762.12761.11391.11391.1139
H31.09642.12761.81371.81373.04392.43712.4371
H41.09642.12761.81371.81372.43712.43713.0439
H51.09642.12761.81371.81372.43713.04392.4371
H62.15141.11393.04392.43712.43711.83401.8340
H72.15141.11392.43712.43713.04391.83401.8340
H82.15141.11392.43713.04392.43711.83401.8340

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 108.081 C1 N2 H7 108.081
C1 N2 H8 108.081 N2 C1 H3 107.245
N2 C1 H4 107.245 N2 C1 H5 107.245
H3 C1 H4 111.603 H3 C1 H5 111.603
H4 C1 H5 111.603 H6 N2 H7 110.825
H6 N2 H8 110.825 H7 N2 H8 110.825
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.359      
2 N -0.342      
3 H 0.164      
4 H 0.164      
5 H 0.164      
6 H 0.070      
7 H 0.070      
8 H 0.070      


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 -1.030 1.030
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.787 0.000 0.000
y 0.000 -16.787 0.000
z 0.000 0.000 -16.626
Traceless
 xyz
x -0.080 0.000 0.000
y 0.000 -0.080 0.000
z 0.000 0.000 0.161
Polar
3z2-r20.321
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 8.309 0.000 0.000
y 0.000 8.303 -0.000
z 0.000 -0.000 5.399


<r2> (average value of r2) Å2
<r2> 31.894
(<r2>)1/2 5.647