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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at G3B3
 hartrees
Energy at 0K-96.266363
Energy at 298.15K-96.261238
HF Energy-96.324418
Nuclear repulsion energy46.801857
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 B3LYP/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 3077 2955 55.91      
2 A1 2465 2367 96.14      
3 A1 1328 1276 127.07      
4 A1 1136 1091 12.67      
5 A1 816 783 19.36      
6 A2 275 264 0.00      
7 E 3170 3044 18.35      
7 E 3170 3044 18.35      
8 E 1619 1555 1870.30      
8 E 1619 1555 1870.47      
9 E 1491 1432 126.28      
9 E 1491 1432 126.26      
10 E 1221 1173 2.39      
10 E 1221 1173 2.39      
11 E 862 827 6.01      
11 E 862 827 6.01      
12 E 454 436 2467.33      
12 E 454 436 2466.88      

Unscaled Zero Point Vibrational Energy (zpe) 13365.4 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 12834.8 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 B3LYP/6-31G*
ABC
2.57849 0.66252 0.66252

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.802
N2 0.000 0.000 0.714
H3 0.000 -1.040 -1.132
H4 -0.901 0.520 -1.132
H5 0.901 0.520 -1.132
H6 0.000 1.039 1.068
H7 -0.900 -0.520 1.068
H8 0.900 -0.520 1.068

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.51611.09151.09151.09152.13872.13872.1387
N21.51612.11912.11912.11911.09761.09761.0976
H31.09152.11911.80201.80203.02682.43272.4327
H41.09152.11911.80201.80202.43272.43273.0268
H51.09152.11911.80201.80202.43273.02682.4327
H62.13871.09763.02682.43272.43271.79991.7999
H72.13871.09762.43272.43273.02681.79991.7999
H82.13871.09762.43273.02682.43271.79991.7999

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 108.764 C1 N2 H7 108.764
C1 N2 H8 108.764 N2 C1 H3 107.606
N2 C1 H4 107.607 N2 C1 H5 107.607
H3 C1 H4 111.270 H3 C1 H5 111.270
H4 C1 H5 111.270 H6 N2 H7 110.169
H6 N2 H8 110.169 H7 N2 H8 110.169
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.342      
2 N -0.379      
3 H 0.158      
4 H 0.158      
5 H 0.158      
6 H 0.082      
7 H 0.082      
8 H 0.082      


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 -1.006 1.006
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 31.668
(<r2>)1/2 5.627