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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: M06-2X/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at M06-2X/3-21G
 hartrees
Energy at 0K-2469.617632
Energy at 298.15K-2469.621762
HF Energy-2469.617632
Nuclear repulsion energy184.298159
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 M06-2X/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 A1 3183 3051 4.10      
2 A1 3094 2966 16.04      
3 A1 1549 1485 2.12      
4 A1 1401 1344 1.11      
5 A1 1024 982 30.25      
6 A1 580 556 0.77      
7 A1 200 191 0.00      
8 A2 3193 3061 0.00      
9 A2 1529 1466 0.00      
10 A2 943 904 0.00      
11 A2 175 168 0.00      
12 B1 3189 3057 13.04      
13 B1 1537 1474 29.98      
14 B1 969 929 17.92      
15 B1 165 158 0.51      
16 B2 3184 3052 0.11      
17 B2 3097 2969 15.27      
18 B2 1540 1476 26.42      
19 B2 1378 1321 1.84      
20 B2 907 869 1.02      
21 B2 595 571 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 16715.3 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 16025.0 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 M06-2X/3-21G
ABC
0.36294 0.22612 0.14718

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.485
C2 0.000 1.466 -0.840
C3 0.000 -1.466 -0.840
H4 0.000 2.405 -0.285
H5 0.000 -2.405 -0.285
H6 0.895 1.414 -1.462
H7 -0.895 1.414 -1.462
H8 -0.895 -1.414 -1.462
H9 0.895 -1.414 -1.462

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.97691.97692.52552.52552.56752.56752.56752.5675
C21.97692.93271.09093.91121.09091.09093.07953.0795
C31.97692.93273.91121.09093.07953.07951.09091.0909
H42.52551.09093.91124.81041.78011.78014.09544.0954
H52.52553.91121.09094.81044.09544.09541.78011.7801
H62.56751.09093.07951.78014.09541.79003.34682.8279
H72.56751.09093.07951.78014.09541.79002.82793.3468
H82.56753.07951.09094.09541.78013.34682.82791.7900
H92.56753.07951.09094.09541.78012.82793.34681.7900

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.268 Se1 C2 H6 110.270
Se1 C2 H7 110.270 Se1 C3 H5 107.268
Se1 C3 H8 110.270 Se1 C3 H9 110.270
C2 Se1 C3 95.760 H4 C2 H6 109.355
H4 C2 H7 109.355 H5 C3 H8 109.355
H5 C3 H9 109.355 H6 C2 H7 110.265
H8 C3 H9 110.265
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.355      
2 C -0.874      
3 C -0.874      
4 H 0.236      
5 H 0.236      
6 H 0.230      
7 H 0.230      
8 H 0.230      
9 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.457 1.457
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.405 0.000 0.000
y 0.000 -29.661 0.000
z 0.000 0.000 -32.847
Traceless
 xyz
x -3.151 0.000 0.000
y 0.000 3.965 0.000
z 0.000 0.000 -0.814
Polar
3z2-r2-1.628
x2-y2-4.744
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.922 0.000 0.000
y 0.000 7.451 0.000
z 0.000 0.000 6.003


<r2> (average value of r2) Å2
<r2> 93.947
(<r2>)1/2 9.693