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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-95.843675
Energy at 298.15K 
HF Energy-95.843675
Nuclear repulsion energy42.077570
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 mPW1PW91/6-31+G**
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' 3569 3397 0.08 100.62 0.10 0.18
2 A' 3106 2956 35.12 99.25 0.37 0.54
3 A' 3005 2860 101.08 153.97 0.15 0.26
4 A' 1683 1602 36.11 4.96 0.75 0.85
5 A' 1508 1436 8.70 13.38 0.71 0.83
6 A' 1468 1397 2.52 4.78 0.74 0.85
7 A' 1174 1117 7.16 0.76 0.75 0.86
8 A' 1095 1042 14.66 8.27 0.23 0.37
9 A' 827 787 198.21 2.36 0.66 0.80
10 A" 3663 3486 3.44 52.90 0.75 0.86
11 A" 3150 2998 29.35 70.11 0.75 0.86
12 A" 1527 1453 5.28 13.69 0.75 0.86
13 A" 1349 1284 0.01 1.89 0.75 0.86
14 A" 978 931 0.19 0.04 0.75 0.86
15 A" 315 300 44.15 0.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14207.4 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 13522.6 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 mPW1PW91/6-31+G**
ABC
3.47136 0.76491 0.73364

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.048 0.702 0.000
N2 0.048 -0.753 0.000
H3 -0.947 1.174 0.000
H4 0.589 1.062 0.879
H5 0.589 1.062 -0.879
H6 -0.426 -1.120 -0.816
H7 -0.426 -1.120 0.816

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7
C11.45571.10071.09291.09292.05222.0522
N21.45572.16902.08802.08801.01231.0123
H31.10072.16901.77301.77302.48992.4899
H41.09292.08801.77301.75742.94332.4074
H51.09292.08801.77301.75742.40742.9433
H62.05221.01232.48992.94332.40741.6315
H72.05221.01232.48992.40742.94331.6315

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 111.239 C1 N2 H7 111.239
N2 C1 H3 115.382 N2 C1 H4 109.199
N2 C1 H5 109.199 H3 C1 H4 107.853
H3 C1 H5 107.853 H4 C1 H5 107.036
H6 N2 H7 107.379
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.425      
2 N -0.623      
3 H 0.138      
4 H 0.162      
5 H 0.162      
6 H 0.293      
7 H 0.293      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.411 0.400 0.000 1.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.338 2.394 0.000
y 2.394 -14.327 0.000
z 0.000 0.000 -12.536
Traceless
 xyz
x -1.906 2.394 0.000
y 2.394 -0.390 0.000
z 0.000 0.000 2.296
Polar
3z2-r24.592
x2-y2-1.011
xy2.394
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.152 -0.076 0.000
y -0.076 3.528 0.000
z 0.000 0.000 3.066


<r2> (average value of r2) Å2
<r2> 26.720
(<r2>)1/2 5.169