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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: CCD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-311G**
 hartrees
Energy at 0K-2479.520834
Energy at 298.15K-2479.524935
HF Energy-2479.042329
Nuclear repulsion energy185.938324
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 CCD/6-311G**
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 3182 3039 11.16      
2 A1 3078 2940 24.29      
3 A1 1507 1440 0.25      
4 A1 1366 1304 3.66      
5 A1 997 952 18.36      
6 A1 608 581 0.11      
7 A1 216 207 0.00      
8 A2 3177 3034 0.00      
9 A2 1485 1418 0.00      
10 A2 919 878 0.00      
11 A2 144 138 0.00      
12 B1 3172 3029 22.55      
13 B1 1494 1427 12.56      
14 B1 951 908 10.52      
15 B1 154 147 0.29      
16 B2 3182 3039 4.69      
17 B2 3081 2943 23.38      
18 B2 1501 1434 13.45      
19 B2 1344 1283 9.65      
20 B2 878 839 0.10      
21 B2 625 597 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 16529.8 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 15787.6 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 CCD/6-311G**
ABC
0.37211 0.22950 0.15014

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.479
C2 0.000 1.454 -0.828
C3 0.000 -1.454 -0.828
H4 0.000 2.393 -0.270
H5 0.000 -2.393 -0.270
H6 0.896 1.403 -1.450
H7 -0.896 1.403 -1.450
H8 -0.896 -1.403 -1.450
H9 0.896 -1.403 -1.450

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.95451.95452.50752.50752.54822.54822.54822.5482
C21.95452.90781.09233.88721.09221.09223.05863.0586
C31.95452.90783.88721.09233.05863.05861.09221.0922
H42.50751.09233.88724.78631.78191.78194.07554.0755
H52.50753.88721.09234.78634.07554.07551.78191.7819
H62.54821.09223.05861.78194.07551.79193.33002.8069
H72.54821.09223.05861.78194.07551.79192.80693.3300
H82.54823.05861.09224.07551.78193.33002.80691.7919
H92.54823.05861.09224.07551.78192.80693.33001.7919

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.367 Se1 C2 H6 110.281
Se1 C2 H7 110.281 Se1 C3 H5 107.367
Se1 C3 H8 110.281 Se1 C3 H9 110.281
C2 Se1 C3 96.123 H4 C2 H6 109.315
H4 C2 H7 109.315 H5 C3 H8 109.315
H5 C3 H9 109.315 H6 C2 H7 110.225
H8 C3 H9 110.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability