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

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G*
 hartrees
Energy at 0K-18.511650
Energy at 298.15K-18.517286
Nuclear repulsion energy26.343031
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/CEP-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' 3540 3388 0.55      
2 A' 3106 2973 52.75      
3 A' 3003 2875 111.16      
4 A' 1680 1608 29.20      
5 A' 1491 1427 7.97      
6 A' 1449 1387 2.31      
7 A' 1163 1114 5.78      
8 A' 1090 1043 16.39      
9 A' 860 823 179.34      
10 A" 3637 3481 0.09      
11 A" 3146 3011 47.41      
12 A" 1509 1444 3.84      
13 A" 1335 1278 0.41      
14 A" 963 922 0.03      
15 A" 324 310 51.23      

Unscaled Zero Point Vibrational Energy (zpe) 14147.5 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 13542.0 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 B1B95/CEP-31G*
ABC
3.39036 0.75202 0.72353

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.051 0.706 0.000
N2 0.051 -0.764 0.000
H3 -0.951 1.186 0.000
H4 0.599 1.069 0.886
H5 0.599 1.069 -0.886
H6 -0.457 -1.106 -0.816
H7 -0.457 -1.106 0.816

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.47051.11131.10311.10312.05122.0512
N21.47052.19272.10842.10841.02031.0203
H31.11132.19271.78921.78922.48232.4823
H41.10312.10841.78921.77302.95652.4179
H51.10312.10841.78921.77302.41792.9565
H62.05121.02032.48232.95652.41791.6329
H72.05121.02032.48232.41792.95651.6329

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 109.547 C1 N2 H7 109.547
N2 C1 H3 115.564 N2 C1 H4 109.188
N2 C1 H5 109.188 H3 C1 H4 107.799
H3 C1 H5 107.799 H4 C1 H5 106.964
H6 N2 H7 106.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.500      
2 N -0.500      
3 H 0.142      
4 H 0.170      
5 H 0.170      
6 H 0.259      
7 H 0.259      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.576 0.418 0.000 1.630
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.571 2.440 0.000
y 2.440 -13.942 0.000
z 0.000 0.000 -12.196
Traceless
 xyz
x -1.502 2.440 0.000
y 2.440 -0.559 0.000
z 0.000 0.000 2.061
Polar
3z2-r24.123
x2-y2-0.629
xy2.440
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.353 0.082 0.000
y 0.082 3.020 0.000
z 0.000 0.000 2.786


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000