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

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G3B3
 hartrees
Energy at 0K-95.762277
Energy at 298.15K-95.757910
HF Energy-95.853209
Nuclear repulsion energy41.896385
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 B3LYP/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' 3468 3330 2.42 106.57 0.12 0.21
2 A' 3078 2956 42.04 89.45 0.25 0.39
3 A' 2968 2851 103.62 122.93 0.20 0.34
4 A' 1704 1636 21.13 11.24 0.68 0.81
5 A' 1528 1468 8.31 24.23 0.70 0.82
6 A' 1486 1427 3.24 8.93 0.65 0.79
7 A' 1193 1145 8.04 5.53 0.46 0.63
8 A' 1071 1029 7.15 8.44 0.36 0.53
9 A' 876 841 170.05 5.70 0.60 0.75
10 A" 3551 3410 0.84 65.64 0.75 0.86
11 A" 3118 2994 36.60 71.37 0.75 0.86
12 A" 1547 1486 1.94 23.03 0.75 0.86
13 A" 1371 1317 0.11 4.61 0.75 0.86
14 A" 988 949 0.00 0.59 0.75 0.86
15 A" 331 318 44.95 2.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14139.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 13578.0 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 B3LYP/6-31G*
ABC
3.42712 0.75777 0.72913

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.052 0.704 0.000
N2 0.052 -0.761 0.000
H3 -0.943 1.185 0.000
H4 0.594 1.063 0.882
H5 0.594 1.063 -0.882
H6 -0.458 -1.104 -0.812
H7 -0.458 -1.104 0.812

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.46471.10481.09561.09562.04632.0463
N21.46472.18512.09712.09711.01861.0186
H31.10482.18511.77621.77622.47622.4762
H41.09562.09711.77621.76312.94472.4098
H51.09562.09711.77621.76312.40982.9447
H62.04631.01862.47622.94472.40981.6246
H72.04631.01862.47622.40982.94471.6246

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 110.338 C1 N2 H7 110.338
N2 C1 H3 115.906 N2 C1 H4 109.145
N2 C1 H5 109.145 H3 C1 H4 107.618
H3 C1 H5 107.618 H4 C1 H5 107.056
H6 N2 H7 106.629
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.309      
2 N -0.705      
3 H 0.120      
4 H 0.153      
5 H 0.153      
6 H 0.294      
7 H 0.294      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.429 0.340 0.000 1.469
CHELPG 1.550 0.313 0.000 1.582
AIM 0.018 -0.371 0.000 0.371
ESP -1.412 0.319 0.000 1.448


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 26.637
(<r2>)1/2 5.161