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

using model chemistry: B3LYP/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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-18.550067
Energy at 298.15K 
HF Energy-18.550067
Nuclear repulsion energy26.209490
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3477 3358 2.86 100.31 0.12 0.21
2 A' 3074 2968 56.34 99.34 0.25 0.39
3 A' 2973 2871 119.60 136.92 0.15 0.26
4 A' 1679 1621 23.86 12.12 0.70 0.82
5 A' 1494 1442 8.18 19.76 0.73 0.85
6 A' 1453 1403 2.64 5.82 0.67 0.81
7 A' 1162 1122 6.15 5.88 0.50 0.67
8 A' 1045 1009 11.30 15.08 0.33 0.50
9 A' 866 837 166.61 4.64 0.45 0.62
10 A" 3565 3443 0.75 59.59 0.75 0.86
11 A" 3110 3004 54.84 74.28 0.75 0.86
12 A" 1512 1460 3.42 21.26 0.75 0.86
13 A" 1340 1295 0.41 6.29 0.75 0.86
14 A" 961 928 0.01 0.31 0.75 0.86
15 A" 320 309 48.90 1.69 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14014.9 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 13534.2 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/CEP-31G*
ABC
3.36406 0.74132 0.71389

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.052 0.713 0.000
N2 0.052 -0.771 0.000
H3 -0.953 1.190 0.000
H4 0.600 1.073 0.889
H5 0.600 1.073 -0.889
H6 -0.465 -1.108 -0.818
H7 -0.465 -1.108 0.818

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.48401.11291.10451.10452.06242.0624
N21.48402.20372.11892.11891.02491.0249
H31.11292.20371.79361.79362.48782.4878
H41.10452.11891.79361.77842.96732.4280
H51.10452.11891.79361.77842.42802.9673
H62.06241.02492.48782.96732.42801.6360
H72.06241.02492.48782.42802.96731.6360

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 109.211 C1 N2 H7 109.211
N2 C1 H3 115.373 N2 C1 H4 109.000
N2 C1 H5 109.000 H3 C1 H4 107.972
H3 C1 H5 107.972 H4 C1 H5 107.229
H6 N2 H7 105.906
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.503      
2 N -0.499      
3 H 0.148      
4 H 0.176      
5 H 0.176      
6 H 0.251      
7 H 0.251      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.564 0.474 0.000 1.634
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.646 2.428 0.000
y 2.428 -14.100 0.000
z 0.000 0.000 -12.335
Traceless
 xyz
x -1.428 2.428 0.000
y 2.428 -0.610 0.000
z 0.000 0.000 2.038
Polar
3z2-r24.077
x2-y2-0.546
xy2.428
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.394 0.100 0.000
y 0.100 3.133 0.000
z 0.000 0.000 2.850


<r2> (average value of r2) Å2
<r2> 24.737
(<r2>)1/2 4.974