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

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-95.188950
Energy at 298.15K 
HF Energy-95.188950
Nuclear repulsion energy41.342276
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 PBEPBE/3-21G
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' 3299 3269 5.72 112.24 0.11 0.21
2 A' 2997 2970 35.79 90.12 0.19 0.31
3 A' 2840 2814 133.24 142.76 0.27 0.42
4 A' 1681 1665 13.49 15.52 0.63 0.78
5 A' 1519 1505 13.96 32.84 0.68 0.81
6 A' 1456 1443 1.50 13.98 0.60 0.75
7 A' 1137 1127 5.50 7.75 0.45 0.62
8 A' 1031 1021 3.66 8.10 0.50 0.67
9 A' 688 681 212.66 8.70 0.40 0.57
10 A" 3399 3368 3.19 63.54 0.75 0.86
11 A" 3042 3015 30.52 69.19 0.75 0.86
12 A" 1545 1531 2.46 29.17 0.75 0.86
13 A" 1335 1322 1.38 5.57 0.75 0.86
14 A" 972 963 0.25 1.21 0.75 0.86
15 A" 335 332 56.45 4.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13637.3 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 13513.2 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 PBEPBE/3-21G
ABC
3.36570 0.73771 0.70656

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.047 0.715 0.000
N2 0.047 -0.769 0.000
H3 -0.949 1.223 0.000
H4 0.600 1.069 0.888
H5 0.600 1.069 -0.888
H6 -0.434 -1.136 -0.839
H7 -0.434 -1.136 0.839

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.48421.11781.10421.10422.08902.0890
N21.48422.22692.11452.11451.03431.0343
H31.11782.22691.79171.79172.55632.5563
H41.10422.11451.79171.77682.98562.4360
H51.10422.11451.79171.77682.43602.9856
H62.08901.03432.55632.98562.43601.6770
H72.08901.03432.55632.43602.98561.6770

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 110.821 C1 N2 H7 110.821
N2 C1 H3 117.002 N2 C1 H4 108.668
N2 C1 H5 108.668 H3 C1 H4 107.480
H3 C1 H5 107.480 H4 C1 H5 107.135
H6 N2 H7 108.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.473      
2 N -0.642      
3 H 0.162      
4 H 0.213      
5 H 0.213      
6 H 0.264      
7 H 0.264      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.443 0.261 0.000 1.466
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.759 2.333 0.000
y 2.333 -13.689 0.000
z 0.000 0.000 -12.390
Traceless
 xyz
x -1.720 2.333 0.000
y 2.333 -0.115 0.000
z 0.000 0.000 1.834
Polar
3z2-r23.669
x2-y2-1.070
xy2.333
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.200 0.122 0.000
y 0.122 3.051 0.000
z 0.000 0.000 2.749


<r2> (average value of r2) Å2
<r2> 27.084
(<r2>)1/2 5.204