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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: QCISD(T)/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 QCISD(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-2479.805768
Energy at 298.15K 
HF Energy-2479.141681
Nuclear repulsion energy186.771122
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 QCISD(T)/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/aug-cc-pVTZ
ABC
0.37215 0.23317 0.15170

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.479
C2 0.000 1.442 -0.828
C3 0.000 -1.442 -0.828
H4 0.000 2.382 -0.276
H5 0.000 -2.382 -0.276
H6 0.896 1.383 -1.446
H7 -0.896 1.383 -1.446
H8 -0.896 -1.383 -1.446
H9 0.896 -1.383 -1.446

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.94641.94642.49832.49832.53392.53392.53392.5339
C21.94642.88451.08983.86361.08981.08983.02743.0274
C31.94642.88453.86361.08983.02743.02741.08981.0898
H42.49831.08983.86364.76321.78041.78044.04274.0427
H52.49833.86361.08984.76324.04274.04271.78041.7804
H62.53391.08983.02741.78044.04271.79123.29512.7657
H72.53391.08983.02741.78044.04271.79122.76573.2951
H82.53393.02741.08984.04271.78043.29512.76571.7912
H92.53393.02741.08984.04271.78042.76573.29511.7912

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.352 Se1 C2 H6 109.904
Se1 C2 H7 109.904 Se1 C3 H5 107.352
Se1 C3 H8 109.904 Se1 C3 H9 109.904
C2 Se1 C3 95.629 H4 C2 H6 109.543
H4 C2 H7 109.543 H5 C3 H8 109.543
H5 C3 H9 109.543 H6 C2 H7 110.535
H8 C3 H9 110.535
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability