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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-95.793211
Energy at 298.15K 
HF Energy-95.793211
Nuclear repulsion energy42.119329
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 B1B95/6-31G*
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' 3523 3345 1.12 103.75 0.12 0.21
2 A' 3113 2955 40.80 87.28 0.28 0.44
3 A' 3005 2852 97.02 124.37 0.17 0.30
4 A' 1710 1623 24.27 10.58 0.68 0.81
5 A' 1531 1453 8.46 23.74 0.70 0.83
6 A' 1486 1411 2.57 8.84 0.66 0.79
7 A' 1196 1135 7.77 4.85 0.50 0.67
8 A' 1102 1046 10.35 8.27 0.33 0.49
9 A' 878 833 175.34 5.42 0.62 0.77
10 A" 3612 3429 0.01 63.93 0.75 0.86
11 A" 3156 2996 32.84 70.94 0.75 0.86
12 A" 1550 1471 2.38 22.85 0.75 0.86
13 A" 1373 1303 0.15 4.03 0.75 0.86
14 A" 989 939 0.03 0.56 0.75 0.86
15 A" 335 318 46.92 2.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14278.9 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 13554.9 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 B1B95/6-31G*
ABC
3.45266 0.76760 0.73831

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.051 0.698 0.000
N2 0.051 -0.755 0.000
H3 -0.940 1.179 0.000
H4 0.593 1.057 0.878
H5 0.593 1.057 -0.878
H6 -0.454 -1.099 -0.810
H7 -0.454 -1.099 0.810

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.45381.10151.09271.09272.03482.0348
N21.45382.17352.08602.08601.01431.0143
H31.10152.17351.77101.77102.46572.4657
H41.09272.08601.77101.75662.93172.3979
H51.09272.08601.77101.75662.39792.9317
H62.03481.01432.46572.93172.39791.6197
H72.03481.01432.46572.39792.93171.6197

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 109.782 C1 N2 H7 109.782
N2 C1 H3 115.864 N2 C1 H4 109.180
N2 C1 H5 109.180 H3 C1 H4 107.637
H3 C1 H5 107.637 H4 C1 H5 106.986
H6 N2 H7 105.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.354      
2 N -0.737      
3 H 0.135      
4 H 0.169      
5 H 0.169      
6 H 0.309      
7 H 0.309      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.442 0.335 0.000 1.480
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.606 2.260 0.000
y 2.260 -13.974 0.000
z 0.000 0.000 -12.379
Traceless
 xyz
x -1.430 2.260 0.000
y 2.260 -0.482 0.000
z 0.000 0.000 1.911
Polar
3z2-r23.823
x2-y2-0.632
xy2.260
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.464 0.143 0.000
y 0.143 3.073 0.000
z 0.000 0.000 2.852


<r2> (average value of r2) Å2
<r2> 26.377
(<r2>)1/2 5.136