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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: CCSD=FULL/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 CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-2479.840396
Energy at 298.15K-2479.844536
HF Energy-2479.141062
Nuclear repulsion energy187.719022
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 CCSD=FULL/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 3173 3008 8.22      
2 A1 3093 2933 22.90      
3 A1 1510 1432 0.36      
4 A1 1354 1283 1.78      
5 A1 989 938 15.96      
6 A1 622 590 0.06      
7 A1 216 205 0.00      
8 A2 3170 3006 0.00      
9 A2 1490 1413 0.00      
10 A2 907 860 0.00      
11 A2 158 150 0.00      
12 B1 3165 3000 16.01      
13 B1 1499 1421 11.91      
14 B1 938 890 8.62      
15 B1 159 150 0.28      
16 B2 3173 3008 3.12      
17 B2 3097 2936 21.42      
18 B2 1502 1425 13.04      
19 B2 1330 1261 7.93      
20 B2 865 820 0.20      
21 B2 641 608 1.44      

Unscaled Zero Point Vibrational Energy (zpe) 16525.1 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 15667.5 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 CCSD=FULL/cc-pVTZ
ABC
0.38048 0.23345 0.15305

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.473
C2 0.000 1.441 -0.818
C3 0.000 -1.441 -0.818
H4 0.000 2.372 -0.264
H5 0.000 -2.372 -0.264
H6 0.889 1.393 -1.435
H7 -0.889 1.393 -1.435
H8 -0.889 -1.393 -1.435
H9 0.889 -1.393 -1.435

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.93511.93512.48432.48432.52452.52452.52452.5245
C21.93512.88261.08343.85371.08331.08333.03413.0341
C31.93512.88263.85371.08343.03413.03411.08331.0833
H42.48431.08343.85374.74481.76661.76664.04244.0424
H52.48433.85371.08344.74484.04244.04241.76661.7666
H62.52451.08333.03411.76664.04241.77813.30542.7864
H72.52451.08333.03411.76664.04241.77812.78643.3054
H82.52453.03411.08334.04241.76663.30542.78641.7781
H92.52453.03411.08334.04241.76662.78643.30541.7781

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.391 Se1 C2 H6 110.306
Se1 C2 H7 110.306 Se1 C3 H5 107.391
Se1 C3 H8 110.306 Se1 C3 H9 110.306
C2 Se1 C3 96.285 H4 C2 H6 109.234
H4 C2 H7 109.234 H5 C3 H8 109.234
H5 C3 H9 109.234 H6 C2 H7 110.307
H8 C3 H9 110.307
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability