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

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-94.032863
Energy at 298.15K 
HF Energy-94.032863
Nuclear repulsion energy41.647133
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 HF/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3900 3185 4.91 50.72 0.12 0.21
2 A' 3709 3028 6.88 30.58 0.68 0.81
3 A' 3539 2890 7.48 38.63 0.04 0.07
4 A' 2023 1652 6.16 11.16 0.73 0.84
5 A' 1822 1488 4.70 17.96 0.75 0.86
6 A' 1749 1428 3.67 3.31 0.73 0.84
7 A' 1387 1133 21.84 2.74 0.67 0.80
8 A' 1261 1029 1.41 11.28 0.34 0.51
9 A' 1056 862 77.62 3.99 0.61 0.76
10 A" 4085 3336 4.92 31.34 0.75 0.86
11 A" 3743 3056 0.75 29.55 0.75 0.86
12 A" 1835 1498 0.55 16.97 0.75 0.86
13 A" 1611 1316 0.85 9.80 0.75 0.86
14 A" 1118 913 0.39 0.52 0.75 0.86
15 A" 356 291 40.29 2.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16596.8 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 13551.3 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 HF/STO-3G
ABC
3.37386 0.74692 0.72049

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.058 0.713 0.000
N2 0.058 -0.773 0.000
H3 -0.942 1.153 0.000
H4 0.588 1.070 0.882
H5 0.588 1.070 -0.882
H6 -0.495 -1.080 -0.817
H7 -0.495 -1.080 0.817

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.48551.09321.08881.08882.04672.0467
N21.48552.17002.10992.10991.03341.0334
H31.09322.17001.76821.76822.41962.4196
H41.08882.10991.76821.76422.94622.4081
H51.08882.10991.76821.76422.40812.9462
H62.04671.03342.41962.94622.40811.6331
H72.04671.03342.41962.40812.94621.6331

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 107.328 C1 N2 H7 107.328
N2 C1 H3 113.736 N2 C1 H4 109.121
N2 C1 H5 109.121 H3 C1 H4 108.255
H3 C1 H5 108.255 H4 C1 H5 108.214
H6 N2 H7 104.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.098      
2 N -0.376      
3 H 0.048      
4 H 0.067      
5 H 0.067      
6 H 0.146      
7 H 0.146      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.516 0.562 0.000 1.616
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.432 1.868 0.000
y 1.868 -13.567 0.000
z 0.000 0.000 -12.115
Traceless
 xyz
x -0.591 1.868 0.000
y 1.868 -0.794 0.000
z 0.000 0.000 1.384
Polar
3z2-r22.768
x2-y20.135
xy1.868
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.103 0.262 0.000
y 0.262 1.546 0.000
z 0.000 0.000 1.590


<r2> (average value of r2) Å2
<r2> 26.325
(<r2>)1/2 5.131