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

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-95.298863
Energy at 298.15K 
HF Energy-95.298863
Nuclear repulsion energy41.739311
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 mPW1PW91/3-21G*
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' 3471 3296 0.95 103.28 0.12 0.22
2 A' 3096 2940 36.66 84.97 0.22 0.36
3 A' 2965 2816 109.96 128.23 0.23 0.37
4 A' 1737 1649 18.44 12.55 0.66 0.80
5 A' 1571 1492 13.17 30.13 0.70 0.82
6 A' 1506 1430 1.15 12.35 0.61 0.76
7 A' 1173 1114 6.89 7.21 0.51 0.67
8 A' 1069 1015 3.56 7.20 0.46 0.63
9 A' 690 655 253.24 7.68 0.35 0.52
10 A" 3572 3392 0.03 61.15 0.75 0.86
11 A" 3140 2982 29.72 68.39 0.75 0.86
12 A" 1595 1515 2.95 27.51 0.75 0.86
13 A" 1369 1300 0.68 5.04 0.75 0.86
14 A" 997 947 0.65 1.10 0.75 0.86
15 A" 327 310 57.28 4.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14138.3 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 13425.7 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 mPW1PW91/3-21G*
ABC
3.45822 0.75055 0.71662

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.043 0.712 0.000
N2 0.043 -0.759 0.000
H3 -0.949 1.199 0.000
H4 0.588 1.066 0.881
H5 0.588 1.066 -0.881
H6 -0.394 -1.147 -0.835
H7 -0.394 -1.147 0.835

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.47081.10501.09411.09412.08502.0850
N21.47082.19492.09782.09781.01971.0197
H31.10502.19491.77611.77612.55222.5522
H41.09412.09781.77611.76102.96762.4217
H51.09412.09781.77611.76102.42172.9676
H62.08501.01972.55222.96762.42171.6706
H72.08501.01972.55222.42172.96761.6706

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 112.418 C1 N2 H7 112.418
N2 C1 H3 116.159 N2 C1 H4 108.857
N2 C1 H5 108.857 H3 C1 H4 107.725
H3 C1 H5 107.725 H4 C1 H5 107.170
H6 N2 H7 110.004
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.476      
2 N -0.705      
3 H 0.174      
4 H 0.222      
5 H 0.222      
6 H 0.281      
7 H 0.281      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.414 0.266 0.000 1.439
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.765 2.263 0.000
y 2.263 -13.402 0.000
z 0.000 0.000 -12.213
Traceless
 xyz
x -1.958 2.263 0.000
y 2.263 0.088 0.000
z 0.000 0.000 1.870
Polar
3z2-r23.740
x2-y2-1.364
xy2.263
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.087 0.125 0.000
y 0.125 2.867 0.000
z 0.000 0.000 2.650


<r2> (average value of r2) Å2
<r2> 26.695
(<r2>)1/2 5.167