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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-95.291210
Energy at 298.15K 
HF Energy-95.291210
Nuclear repulsion energy41.663138
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 B3PW91/3-21G
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' 3442 3308 1.54      
2 A' 3076 2957 37.50      
3 A' 2941 2826 116.55      
4 A' 1727 1660 17.48      
5 A' 1562 1501 13.26      
6 A' 1498 1440 1.22      
7 A' 1166 1121 6.78      
8 A' 1059 1018 3.50      
9 A' 686 659 248.51      
10 A" 3542 3405 0.26      
11 A" 3119 2998 31.03      
12 A" 1586 1525 2.76      
13 A" 1362 1309 0.76      
14 A" 993 954 0.58      
15 A" 326 314 57.29      

Unscaled Zero Point Vibrational Energy (zpe) 14042.9 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 13498.0 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 B3PW91/3-21G
ABC
3.44439 0.74776 0.71422

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.044 0.713 0.000
N2 0.044 -0.760 0.000
H3 -0.949 1.203 0.000
H4 0.589 1.067 0.882
H5 0.589 1.067 -0.882
H6 -0.398 -1.147 -0.836
H7 -0.398 -1.147 0.836

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.47371.10721.09591.09592.08722.0872
N21.47372.20032.10162.10161.02191.0219
H31.10722.20031.77871.77872.55482.5548
H41.09592.10161.77871.76362.97192.4255
H51.09592.10161.77871.76362.42552.9719
H62.08721.02192.55482.97192.42551.6722
H72.08721.02192.55482.42552.97191.6722

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 112.247 C1 N2 H7 112.247
N2 C1 H3 116.260 N2 C1 H4 108.857
N2 C1 H5 108.857 H3 C1 H4 107.676
H3 C1 H5 107.676 H4 C1 H5 107.158
H6 N2 H7 109.813
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.471      
2 N -0.694      
3 H 0.170      
4 H 0.219      
5 H 0.219      
6 H 0.278      
7 H 0.278      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.417 0.258 0.000 1.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.760 2.276 0.000
y 2.276 -13.426 0.000
z 0.000 0.000 -12.228
Traceless
 xyz
x -1.933 2.276 0.000
y 2.276 0.068 0.000
z 0.000 0.000 1.865
Polar
3z2-r23.730
x2-y2-1.334
xy2.276
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.108 0.124 0.000
y 0.124 2.901 0.000
z 0.000 0.000 2.673


<r2> (average value of r2) Å2
<r2> 26.765
(<r2>)1/2 5.173