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

using model chemistry: TPSSh/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 TPSSh/6-31G**
 hartrees
Energy at 0K-96.332828
Energy at 298.15K 
HF Energy-96.332828
Nuclear repulsion energy46.739401
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 TPSSh/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3066 2939 58.80      
2 A1 2380 2281 93.26      
3 A1 1322 1268 114.63      
4 A1 1087 1042 4.91      
5 A1 799 766 19.20      
6 A2 271 260 0.00      
7 E 3166 3036 20.40      
7 E 3166 3035 20.41      
8 E 1511 1449 343.66      
8 E 1511 1449 343.15      
9 E 1451 1391 1156.95      
9 E 1451 1391 1158.04      
10 E 1199 1150 22.60      
10 E 1199 1150 22.60      
11 E 846 811 27.30      
11 E 846 811 27.30      
12 E 1101i 1056i 5393.31      
12 E 1101i 1056i 5395.78      

Unscaled Zero Point Vibrational Energy (zpe) 11535.0 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 11058.6 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 TPSSh/6-31G**
ABC
2.54539 0.66361 0.66361

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.800
N2 0.000 0.000 0.718
H3 0.000 -1.040 -1.128
H4 -0.901 0.520 -1.128
H5 0.901 0.520 -1.128
H6 0.000 1.053 1.053
H7 -0.912 -0.526 1.053
H8 0.912 -0.526 1.053

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.51791.09071.09071.09072.13092.13092.1309
N21.51792.11872.11872.11871.10471.10471.1047
H31.09072.11871.80181.80183.02252.41872.4187
H41.09072.11871.80181.80182.41872.41873.0225
H51.09072.11871.80181.80182.41873.02252.4187
H62.13091.10473.02252.41872.41871.82341.8234
H72.13091.10472.41872.41873.02251.82341.8234
H82.13091.10472.41873.02252.41871.82341.8234

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 107.645 C1 N2 H7 107.645
C1 N2 H8 107.645 N2 C1 H3 107.494
N2 C1 H4 107.494 N2 C1 H5 107.494
H3 C1 H4 111.374 H3 C1 H5 111.374
H4 C1 H5 111.374 H6 N2 H7 111.234
H6 N2 H8 111.234 H7 N2 H8 111.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.271      
2 N -0.230      
3 H 0.137      
4 H 0.137      
5 H 0.137      
6 H 0.030      
7 H 0.030      
8 H 0.030      


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 -1.063 1.063
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 8.532 0.000 0.000
y 0.000 8.530 0.000
z 0.000 0.000 5.170


<r2> (average value of r2) Å2
<r2> 31.602
(<r2>)1/2 5.622