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

using model chemistry: HF/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-18.070047
Energy at 298.15K 
HF Energy-18.070047
Nuclear repulsion energy26.625651
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/CEP-121G*
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' 3722 3362 1.09 102.70 0.13 0.23
2 A' 3229 2917 71.91 97.70 0.32 0.49
3 A' 3144 2840 114.49 137.84 0.13 0.23
4 A' 1841 1664 37.30 6.00 0.75 0.86
5 A' 1631 1474 6.69 15.84 0.73 0.84
6 A' 1588 1434 6.32 4.14 0.73 0.85
7 A' 1280 1157 24.40 3.17 0.48 0.64
8 A' 1130 1021 25.28 14.10 0.30 0.46
9 A' 953 861 170.22 2.75 0.68 0.81
10 A" 3801 3434 0.09 67.83 0.75 0.86
11 A" 3266 2951 65.30 79.64 0.75 0.86
12 A" 1649 1490 2.12 16.51 0.75 0.86
13 A" 1468 1326 0.09 3.29 0.75 0.86
14 A" 1040 940 0.37 0.15 0.75 0.86
15 A" 333 301 46.51 1.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15036.9 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 13584.4 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/CEP-121G*
ABC
3.49961 0.76139 0.73211

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.050 0.706 0.000
N2 0.050 -0.759 0.000
H3 -0.944 1.159 0.000
H4 0.584 1.064 0.876
H5 0.584 1.064 -0.876
H6 -0.439 -1.105 -0.805
H7 -0.439 -1.105 0.805

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.46541.09241.08591.08592.04172.0417
N21.46542.16022.09152.09151.00331.0033
H31.09242.16021.76361.76362.45532.4553
H41.08592.09151.76361.75132.92812.3989
H51.08592.09151.76361.75132.39892.9281
H62.04171.00332.45532.92812.39891.6097
H72.04171.00332.45532.39892.92811.6097

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 110.177 C1 N2 H7 110.177
N2 C1 H3 114.460 N2 C1 H4 109.218
N2 C1 H5 109.218 H3 C1 H4 108.117
H3 C1 H5 108.117 H4 C1 H5 107.485
H6 N2 H7 106.687
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.357      
2 N -0.731      
3 H 0.134      
4 H 0.161      
5 H 0.161      
6 H 0.316      
7 H 0.316      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.509 0.447 0.000 1.574
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.989 2.353 0.000
y 2.353 -14.302 0.000
z 0.000 0.000 -12.459
Traceless
 xyz
x -1.608 2.353 0.000
y 2.353 -0.578 0.000
z 0.000 0.000 2.186
Polar
3z2-r24.372
x2-y2-0.687
xy2.353
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.678 0.102 0.000
y 0.102 3.076 0.000
z 0.000 0.000 2.963


<r2> (average value of r2) Å2
<r2> 24.427
(<r2>)1/2 4.942