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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-18.524116
Energy at 298.15K 
HF Energy-18.524116
Nuclear repulsion energy26.143059
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
4/u)
Dep P Dep U
1 A' 3556 3443 0.86 107.23 0.14 0.24
2 A' 3072 2975 76.50 106.10 0.24 0.39
3 A' 2950 2857 166.47 168.19 0.14 0.25
4 A' 1678 1625 31.51 9.48 0.69 0.81
5 A' 1506 1458 10.27 24.73 0.72 0.84
6 A' 1470 1423 2.80 8.97 0.73 0.84
7 A' 1138 1102 10.28 9.22 0.57 0.73
8 A' 1078 1044 16.83 14.20 0.38 0.55
9 A' 554 536 359.30 5.20 0.13 0.22
10 A" 3686 3569 0.07 54.50 0.75 0.86
11 A" 3119 3021 69.06 80.45 0.75 0.86
12 A" 1525 1477 5.24 22.42 0.75 0.86
13 A" 1308 1267 0.01 6.87 0.75 0.86
14 A" 946 916 1.87 0.93 0.75 0.86
15 A" 267 259 49.67 3.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13926.4 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 13486.3 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
3.45953 0.73726 0.69987

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 0.034 0.723 0.000
N2 0.034 -0.758 0.000
H3 -0.975 1.195 0.000
H4 0.579 1.087 0.889
H5 0.579 1.087 -0.889
H6 -0.315 -1.200 -0.850
H7 -0.315 -1.200 0.850

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.48071.11461.10421.10422.13112.1311
N21.48072.19842.11892.11891.01961.0196
H31.11462.19841.79381.79382.62572.6257
H41.10422.11891.79381.77733.00862.4559
H51.10422.11891.79381.77732.45593.0086
H62.13111.01962.62573.00862.45591.6995
H72.13111.01962.62572.45593.00861.6995

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 115.701 C1 N2 H7 115.701
N2 C1 H3 115.065 N2 C1 H4 109.251
N2 C1 H5 109.251 H3 C1 H4 107.898
H3 C1 H5 107.898 H4 C1 H5 107.190
H6 N2 H7 112.891
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 -0.476      
2 N -0.500      
3 H 0.143      
4 H 0.173      
5 H 0.173      
6 H 0.244      
7 H 0.244      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.350 0.236 0.000 1.370
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.325 2.207 0.000
y 2.207 -13.222 0.000
z 0.000 0.000 -12.071
Traceless
 xyz
x -2.678 2.207 0.000
y 2.207 0.476 0.000
z 0.000 0.000 2.202
Polar
3z2-r24.405
x2-y2-2.102
xy2.207
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.128 0.046 0.000
y 0.046 3.022 0.000
z 0.000 0.000 2.758


<r2> (average value of r2) Å2
<r2> 24.944
(<r2>)1/2 4.994