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

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-95.170903
Energy at 298.15K 
HF Energy-95.170903
Nuclear repulsion energy42.311698
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/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 A' 3806 3436 0.91 99.41 0.14 0.25
2 A' 3232 2918 58.10 94.82 0.26 0.42
3 A' 3135 2830 107.54 133.37 0.17 0.30
4 A' 1849 1670 32.74 6.77 0.73 0.85
5 A' 1662 1501 9.36 24.48 0.73 0.84
6 A' 1624 1466 1.88 9.88 0.69 0.82
7 A' 1264 1141 9.06 7.26 0.59 0.74
8 A' 1159 1046 22.75 11.14 0.37 0.54
9 A' 637 575 377.98 6.09 0.29 0.44
10 A" 3924 3543 5.46 58.52 0.75 0.86
11 A" 3273 2956 48.32 79.49 0.75 0.86
12 A" 1682 1519 2.48 24.38 0.75 0.86
13 A" 1453 1312 0.60 4.33 0.75 0.86
14 A" 1046 944 2.05 0.80 0.75 0.86
15 A" 277 250 46.88 4.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15010.5 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 13553.0 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 HF/6-31G
ABC
3.63056 0.76772 0.72795

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.031 0.709 0.000
N2 0.031 -0.741 0.000
H3 -0.960 1.162 0.000
H4 0.562 1.070 0.872
H5 0.562 1.070 -0.872
H6 -0.286 -1.186 -0.830
H7 -0.286 -1.186 0.830

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.45061.08991.08231.08232.09332.0933
N21.45062.14602.07912.07910.99390.9939
H31.08992.14601.75621.75622.58002.5800
H41.08232.07911.75621.74342.95052.4104
H51.08232.07911.75621.74342.41042.9505
H62.09330.99392.58002.95052.41041.6608
H72.09330.99392.58002.41042.95051.6608

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 116.570 C1 N2 H7 116.570
N2 C1 H3 114.540 N2 C1 H4 109.478
N2 C1 H5 109.478 H3 C1 H4 107.896
H3 C1 H5 107.896 H4 C1 H5 107.298
H6 N2 H7 113.334
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.229      
2 N -0.861      
3 H 0.126      
4 H 0.160      
5 H 0.160      
6 H 0.322      
7 H 0.322      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.231 0.211 0.000 1.249
CHELPG 1.186 -0.178 0.000 1.199
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.482 1.989 0.000
y 1.989 -13.293 0.000
z 0.000 0.000 -12.299
Traceless
 xyz
x -2.686 1.989 0.000
y 1.989 0.597 0.000
z 0.000 0.000 2.088
Polar
3z2-r24.177
x2-y2-2.189
xy1.989
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.113 0.096 0.000
y 0.096 2.825 0.000
z 0.000 0.000 2.683


<r2> (average value of r2) Å2
<r2> 26.498
(<r2>)1/2 5.148