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All results from a given calculation for CH3NH2 (methyl amine)

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 CS 1A'
Energy calculated at TPSSh/6-31G**
 hartrees
Energy at 0K-95.864292
Energy at 298.15K 
HF Energy-95.864292
Nuclear repulsion energy41.891390
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 A' 3470 3327 3.19 113.58 0.11 0.20
2 A' 3077 2950 45.77 95.25 0.26 0.41
3 A' 2967 2844 107.87 135.29 0.19 0.31
4 A' 1683 1613 18.74 11.52 0.67 0.80
5 A' 1525 1462 7.59 23.87 0.70 0.82
6 A' 1478 1417 4.37 8.37 0.61 0.76
7 A' 1189 1140 8.03 5.46 0.46 0.63
8 A' 1063 1019 6.23 8.94 0.35 0.52
9 A' 868 833 163.54 5.66 0.60 0.75
10 A" 3554 3407 1.22 67.88 0.75 0.86
11 A" 3119 2990 39.54 74.55 0.75 0.86
12 A" 1545 1481 1.42 22.36 0.75 0.86
13 A" 1364 1307 0.11 4.47 0.75 0.86
14 A" 977 937 0.00 0.57 0.75 0.86
15 A" 333 319 43.16 2.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14105.5 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 13523.0 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
3.42250 0.75722 0.72910

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.052 0.705 0.000
N2 0.052 -0.762 0.000
H3 -0.941 1.185 0.000
H4 0.595 1.060 0.881
H5 0.595 1.060 -0.881
H6 -0.465 -1.098 -0.811
H7 -0.465 -1.098 0.811

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.46681.10351.09441.09442.04352.0435
N21.46682.18582.09562.09561.01891.0189
H31.10352.18581.77551.77552.46922.4692
H41.09442.09561.77551.76292.94042.4054
H51.09442.09561.77551.76292.40542.9404
H62.04351.01892.46922.94042.40541.6222
H72.04351.01892.46922.40542.94041.6222

picture of methyl amine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 109.259 C1 N2 H7 109.259
N2 C1 H3 115.791 N2 C1 H4 108.948
N2 C1 H5 108.948 H3 C1 H4 107.768
H3 C1 H5 107.768 H4 C1 H5 107.302
H6 N2 H7 105.504
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 -0.227      
2 N -0.627      
3 H 0.096      
4 H 0.130      
5 H 0.130      
6 H 0.249      
7 H 0.249      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.407 0.360 0.000 1.452
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 2.571 0.154 0.000
y 0.154 3.213 0.000
z 0.000 0.000 2.965


<r2> (average value of r2) Å2
<r2> 26.597
(<r2>)1/2 5.157