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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-95.831677
Energy at 298.15K 
HF Energy-95.831677
Nuclear repulsion energy42.031032
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 B3PW91/6-31G(2df,p)
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' 3521 3385 0.44 97.24 0.11 0.19
2 A' 3073 2954 37.54 84.15 0.30 0.46
3 A' 2972 2858 86.13 119.80 0.15 0.26
4 A' 1664 1600 19.02 7.58 0.68 0.81
5 A' 1493 1436 6.83 17.80 0.70 0.82
6 A' 1454 1398 1.63 5.62 0.63 0.77
7 A' 1179 1133 7.02 2.70 0.56 0.71
8 A' 1082 1041 8.59 7.95 0.29 0.46
9 A' 855 822 150.10 3.59 0.67 0.80
10 A" 3602 3463 0.31 57.24 0.75 0.86
11 A" 3115 2995 28.86 65.86 0.75 0.86
12 A" 1514 1455 2.50 17.67 0.75 0.86
13 A" 1353 1301 0.11 2.54 0.75 0.86
14 A" 978 940 0.08 0.31 0.75 0.86
15 A" 317 304 35.88 1.47 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14086.3 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 13542.6 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 B3PW91/6-31G(2df,p)
ABC
3.44450 0.76324 0.73441

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.052 0.700 0.000
N2 0.052 -0.758 0.000
H3 -0.942 1.179 0.000
H4 0.593 1.063 0.880
H5 0.593 1.063 -0.880
H6 -0.456 -1.100 -0.809
H7 -0.456 -1.100 0.809

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.45841.10311.09511.09512.03762.0376
N21.45842.17722.09392.09391.01431.0143
H31.10312.17721.77321.77322.46622.4662
H41.09512.09391.77321.76062.93782.4047
H51.09512.09391.77321.76062.40472.9378
H62.03761.01432.46622.93782.40471.6176
H72.03761.01432.46622.40472.93781.6176

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 109.674 C1 N2 H7 109.674
N2 C1 H3 115.723 N2 C1 H4 109.347
N2 C1 H5 109.347 H3 C1 H4 107.539
H3 C1 H5 107.539 H4 C1 H5 106.990
H6 N2 H7 105.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.352      
2 N -0.545      
3 H 0.114      
4 H 0.144      
5 H 0.144      
6 H 0.247      
7 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.264 0.272 0.000 1.293
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.471 2.047 0.000
y 2.047 -13.921 0.000
z 0.000 0.000 -12.364
Traceless
 xyz
x -1.329 2.047 0.000
y 2.047 -0.503 0.000
z 0.000 0.000 1.832
Polar
3z2-r23.664
x2-y2-0.550
xy2.047
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.703 0.136 0.000
y 0.136 3.305 0.000
z 0.000 0.000 3.005


<r2> (average value of r2) Å2
<r2> 26.419
(<r2>)1/2 5.140