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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: CCD/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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-2479.775003
Energy at 298.15K-2479.779137
HF Energy-2479.141922
Nuclear repulsion energy187.316073
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/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3176 3040 7.89      
2 A1 3074 2942 21.88      
3 A1 1507 1442 0.74      
4 A1 1356 1297 1.34      
5 A1 997 954 14.14      
6 A1 624 597 0.06      
7 A1 216 207 0.00      
8 A2 3173 3036 0.00      
9 A2 1487 1423 0.00      
10 A2 919 879 0.00      
11 A2 149 143 0.00      
12 B1 3167 3030 11.77      
13 B1 1496 1432 11.28      
14 B1 946 905 6.76      
15 B1 157 150 0.20      
16 B2 3177 3040 2.42      
17 B2 3078 2946 20.33      
18 B2 1500 1436 12.41      
19 B2 1335 1278 6.96      
20 B2 876 838 0.13      
21 B2 642 614 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 16525.2 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 15814.7 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/aug-cc-pVTZ
ABC
0.37814 0.23284 0.15249

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.475
C2 0.000 1.443 -0.821
C3 0.000 -1.443 -0.821
H4 0.000 2.378 -0.265
H5 0.000 -2.378 -0.265
H6 0.893 1.391 -1.439
H7 -0.893 1.391 -1.439
H8 -0.893 -1.391 -1.439
H9 0.893 -1.391 -1.439

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.93921.93922.49022.49022.52852.52852.52852.5285
C21.93922.88641.08743.86131.08741.08743.03513.0351
C31.93922.88643.86131.08743.03513.03511.08741.0874
H42.49021.08743.86134.75571.77471.77474.04714.0471
H52.49023.86131.08744.75574.04714.04711.77471.7747
H62.52851.08743.03511.77474.04711.78623.30582.7817
H72.52851.08743.03511.77474.04711.78622.78173.3058
H82.52853.03511.08744.04711.77473.30582.78171.7862
H92.52853.03511.08744.04711.77472.78173.30581.7862

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.353 Se1 C2 H6 110.111
Se1 C2 H7 110.111 Se1 C3 H5 107.353
Se1 C3 H8 110.111 Se1 C3 H9 110.111
C2 Se1 C3 96.183 H4 C2 H6 109.385
H4 C2 H7 109.385 H5 C3 H8 109.385
H5 C3 H9 109.385 H6 C2 H7 110.437
H8 C3 H9 110.437
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability