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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: BLYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-2481.432886
Energy at 298.15K-2481.436797
HF Energy-2481.432886
Nuclear repulsion energy183.155819
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 BLYP/aug-cc-pVTZ
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 3066 3055 11.41      
2 A1 2977 2967 25.23      
3 A1 1443 1438 0.60      
4 A1 1275 1271 3.04      
5 A1 945 942 12.56      
6 A1 542 540 0.22      
7 A1 200 199 0.03      
8 A2 3062 3052 0.00      
9 A2 1426 1421 0.00      
10 A2 868 865 0.00      
11 A2 149 148 0.00      
12 B1 3056 3045 15.34      
13 B1 1433 1428 9.50      
14 B1 894 891 7.92      
15 B1 139 138 0.24      
16 B2 3067 3056 2.40      
17 B2 2980 2970 24.28      
18 B2 1438 1433 13.26      
19 B2 1254 1250 10.83      
20 B2 832 830 0.26      
21 B2 556 554 0.69      

Unscaled Zero Point Vibrational Energy (zpe) 15800.2 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 15746.5 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 BLYP/aug-cc-pVTZ
ABC
0.36831 0.21874 0.14493

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.480
C2 0.000 1.494 -0.835
C3 0.000 -1.494 -0.835
H4 0.000 2.419 -0.252
H5 0.000 -2.419 -0.252
H6 0.899 1.449 -1.454
H7 -0.899 1.449 -1.454
H8 -0.899 -1.449 -1.454
H9 0.899 -1.449 -1.454

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.99021.99022.52762.52762.57872.57872.57872.5787
C21.99022.98751.09323.95591.09301.09303.13853.1385
C31.99022.98753.95591.09323.13853.13851.09301.0930
H42.52761.09323.95594.83801.78731.78734.14864.1486
H52.52763.95591.09324.83804.14864.14861.78731.7873
H62.57871.09303.13851.78734.14861.79873.41012.8972
H72.57871.09303.13851.78734.14861.79872.89723.4101
H82.57873.13851.09304.14861.78733.41012.89721.7987
H92.57873.13851.09304.14861.78732.89723.41011.7987

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 106.459 Se1 C2 H6 110.090
Se1 C2 H7 110.090 Se1 C3 H5 106.459
Se1 C3 H8 110.090 Se1 C3 H9 110.090
C2 Se1 C3 97.280 H4 C2 H6 109.684
H4 C2 H7 109.684 H5 C3 H8 109.684
H5 C3 H9 109.684 H6 C2 H7 110.741
H8 C3 H9 110.741
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.262      
2 C -0.639      
3 C -0.639      
4 H 0.142      
5 H 0.142      
6 H 0.183      
7 H 0.183      
8 H 0.183      
9 H 0.183      


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 -1.440 1.440
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.014 0.000 0.000
y 0.000 -29.995 0.000
z 0.000 0.000 -33.156
Traceless
 xyz
x -3.438 0.000 0.000
y 0.000 4.090 0.000
z 0.000 0.000 -0.652
Polar
3z2-r2-1.303
x2-y2-5.019
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.670 0.000 0.000
y 0.000 10.316 0.000
z 0.000 0.000 8.890


<r2> (average value of r2) Å2
<r2> 95.338
(<r2>)1/2 9.764