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

using model chemistry: HF/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-95.261360
Energy at 298.15K 
HF Energy-95.261360
Nuclear repulsion energy42.414324
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/cc-pVQZ
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' 3728 3386 0.30 103.42 0.09 0.17
2 A' 3194 2901 50.04 101.55 0.24 0.39
3 A' 3119 2833 93.80 141.68 0.11 0.20
4 A' 1796 1631 25.63 2.60 0.72 0.84
5 A' 1618 1469 5.74 6.49 0.71 0.83
6 A' 1582 1437 2.55 0.79 0.50 0.67
7 A' 1269 1153 12.75 0.71 0.40 0.57
8 A' 1134 1030 20.70 11.11 0.24 0.38
9 A' 906 823 160.06 0.94 0.57 0.72
10 A" 3803 3455 2.52 51.08 0.75 0.86
11 A" 3225 2930 47.02 64.26 0.75 0.86
12 A" 1635 1485 3.42 6.99 0.75 0.86
13 A" 1457 1324 0.02 0.78 0.75 0.86
14 A" 1041 946 0.00 0.01 0.75 0.86
15 A" 318 289 34.69 0.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14911.2 cm-1
Scaled (by 0.9084) Zero Point Vibrational Energy (zpe) 13545.4 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/cc-pVQZ
ABC
3.54995 0.77298 0.74184

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.048 0.701 0.000
N2 0.048 -0.751 0.000
H3 -0.942 1.152 0.000
H4 0.579 1.060 0.872
H5 0.579 1.060 -0.872
H6 -0.420 -1.111 -0.803
H7 -0.420 -1.111 0.803

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.45131.08801.08211.08212.03632.0363
N21.45132.14462.07842.07840.99690.9969
H31.08802.14461.75551.75552.45722.4572
H41.08212.07841.75551.74372.91822.3906
H51.08212.07841.75551.74372.39062.9182
H62.03630.99692.45722.91822.39061.6061
H72.03630.99692.45722.39062.91821.6061

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 111.198 C1 N2 H7 111.198
N2 C1 H3 114.490 N2 C1 H4 109.383
N2 C1 H5 109.383 H3 C1 H4 107.990
H3 C1 H5 107.990 H4 C1 H5 107.363
H6 N2 H7 107.328
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.027      
2 N -0.418      
3 H 0.013      
4 H 0.070      
5 H 0.070      
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
  -1.284 0.348 0.000 1.330
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.952 2.097 0.000
y 2.097 -14.219 0.000
z 0.000 0.000 -12.515
Traceless
 xyz
x -1.584 2.097 0.000
y 2.097 -0.486 0.000
z 0.000 0.000 2.070
Polar
3z2-r24.140
x2-y2-0.732
xy2.097
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.098 0.063 0.000
y 0.063 3.620 0.000
z 0.000 0.000 3.219


<r2> (average value of r2) Å2
<r2> 26.361
(<r2>)1/2 5.134