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

using model chemistry: B1B95/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 B1B95/STO-3G
 hartrees
Energy at 0K-94.593690
Energy at 298.15K 
HF Energy-94.593690
Nuclear repulsion energy41.147324
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 B1B95/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' 3539 3125 13.82 44.94 0.08 0.14
2 A' 3459 3055 4.99 37.15 0.58 0.73
3 A' 3300 2914 12.64 40.34 0.04 0.08
4 A' 1868 1650 6.48 11.73 0.70 0.82
5 A' 1678 1482 6.42 17.35 0.75 0.86
6 A' 1595 1408 0.77 4.53 0.74 0.85
7 A' 1286 1136 8.83 3.99 0.74 0.85
8 A' 1140 1007 0.23 8.91 0.35 0.52
9 A' 954 842 71.07 3.56 0.55 0.71
10 A" 3723 3288 11.84 28.61 0.75 0.86
11 A" 3508 3098 0.46 28.43 0.75 0.86
12 A" 1692 1494 1.78 16.71 0.75 0.86
13 A" 1499 1323 2.04 9.55 0.75 0.86
14 A" 1037 916 0.01 0.51 0.75 0.86
15 A" 355 313 40.74 2.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15316.6 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 13524.5 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 B1B95/STO-3G
ABC
3.25391 0.73139 0.70883

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.063 0.716 0.000
N2 0.063 -0.786 0.000
H3 -0.941 1.181 0.000
H4 0.603 1.070 0.891
H5 0.603 1.070 -0.891
H6 -0.544 -1.058 -0.821
H7 -0.544 -1.058 0.821

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.50281.10641.10001.10002.04732.0473
N21.50282.20902.12892.12891.05641.0564
H31.10642.20901.78601.78602.41802.4180
H41.10002.12891.78601.78112.96232.4188
H51.10002.12891.78601.78112.41882.9623
H62.04731.05642.41802.96232.41881.6420
H72.04731.05642.41802.41882.96231.6420

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 104.907 C1 N2 H7 104.907
N2 C1 H3 114.841 N2 C1 H4 108.761
N2 C1 H5 108.761 H3 C1 H4 108.090
H3 C1 H5 108.090 H4 C1 H5 108.110
H6 N2 H7 101.998
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.163      
2 N -0.372      
3 H 0.064      
4 H 0.083      
5 H 0.083      
6 H 0.153      
7 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.582 0.607 0.000 1.695
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.179 1.938 0.000
y 1.938 -13.568 0.000
z 0.000 0.000 -11.997
Traceless
 xyz
x -0.396 1.938 0.000
y 1.938 -0.980 0.000
z 0.000 0.000 1.376
Polar
3z2-r22.752
x2-y20.389
xy1.938
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.166 0.258 0.000
y 0.258 1.618 0.000
z 0.000 0.000 1.613


<r2> (average value of r2) Å2
<r2> 26.591
(<r2>)1/2 5.157