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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-2481.380725
Energy at 298.15K-2481.384819
HF Energy-2481.380725
Nuclear repulsion energy186.172857
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 wB97X-D/cc-pVDZ
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 3181 3030 6.30      
2 A1 3061 2916 23.50      
3 A1 1456 1387 0.76      
4 A1 1316 1254 1.80      
5 A1 978 932 19.33      
6 A1 617 588 0.24      
7 A1 218 208 0.01      
8 A2 3173 3022 0.00      
9 A2 1442 1374 0.00      
10 A2 890 848 0.00      
11 A2 151 144 0.00      
12 B1 3167 3017 15.13      
13 B1 1451 1382 15.25      
14 B1 920 876 12.68      
15 B1 158 151 0.41      
16 B2 3182 3031 1.66      
17 B2 3065 2919 25.94      
18 B2 1449 1380 15.98      
19 B2 1294 1232 9.43      
20 B2 860 819 0.94      
21 B2 632 602 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 16329.6 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 15555.6 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 wB97X-D/cc-pVDZ
ABC
0.37755 0.22848 0.15067

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.474
C2 0.000 1.456 -0.820
C3 0.000 -1.456 -0.820
H4 0.000 2.396 -0.251
H5 0.000 -2.396 -0.251
H6 0.901 1.414 -1.447
H7 -0.901 1.414 -1.447
H8 -0.901 -1.414 -1.447
H9 0.901 -1.414 -1.447

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.94771.94772.50362.50362.55032.55032.55032.5503
C21.94772.91171.09863.89371.09891.09893.07313.0731
C31.94772.91173.89371.09863.07313.07311.09891.0989
H42.50361.09863.89374.79241.79041.79044.09424.0942
H52.50363.89371.09864.79244.09424.09421.79041.7904
H62.55031.09893.07311.79044.09421.80243.35422.8288
H72.55031.09893.07311.79044.09421.80242.82883.3542
H82.55033.07311.09894.09421.79043.35422.82881.8024
H92.55033.07311.09894.09421.79042.82883.35421.8024

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.233 Se1 C2 H6 110.554
Se1 C2 H7 110.554 Se1 C3 H5 107.233
Se1 C3 H8 110.554 Se1 C3 H9 110.554
C2 Se1 C3 96.747 H4 C2 H6 109.123
H4 C2 H7 109.123 H5 C3 H8 109.123
H5 C3 H9 109.123 H6 C2 H7 110.185
H8 C3 H9 110.185
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se -0.005      
2 C -0.230      
3 C -0.230      
4 H 0.080      
5 H 0.080      
6 H 0.076      
7 H 0.076      
8 H 0.076      
9 H 0.076      


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 -1.436 1.436
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.954 0.000 0.000
y 0.000 -28.969 0.000
z 0.000 0.000 -32.181
Traceless
 xyz
x -3.379 0.000 0.000
y 0.000 4.098 0.000
z 0.000 0.000 -0.719
Polar
3z2-r2-1.439
x2-y2-4.985
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.830 0.000 0.000
y 0.000 8.158 0.000
z 0.000 0.000 6.634


<r2> (average value of r2) Å2
<r2> 92.177
(<r2>)1/2 9.601