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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: MP2=FULL/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 MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-2479.840744
Energy at 298.15K-2479.844889
HF Energy-2479.141436
Nuclear repulsion energy188.883398
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 MP2=FULL/aug-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 3192 3037 5.58      
2 A1 3103 2952 21.54      
3 A1 1507 1434 0.54      
4 A1 1345 1280 0.74      
5 A1 991 943 13.75      
6 A1 639 608 0.07      
7 A1 218 208 0.00      
8 A2 3191 3036 0.00      
9 A2 1488 1416 0.00      
10 A2 911 867 0.00      
11 A2 135 129 0.00      
12 B1 3183 3029 7.45      
13 B1 1499 1426 12.63      
14 B1 948 902 7.67      
15 B1 171 162 0.18      
16 B2 3192 3037 1.10      
17 B2 3108 2957 17.16      
18 B2 1496 1423 13.84      
19 B2 1322 1258 4.74      
20 B2 870 827 0.19      
21 B2 654 622 1.40      

Unscaled Zero Point Vibrational Energy (zpe) 16581.7 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 15775.9 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 MP2=FULL/aug-cc-pVTZ
ABC
0.37609 0.24094 0.15554

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.477
C2 0.000 1.417 -0.824
C3 0.000 -1.417 -0.824
H4 0.000 2.358 -0.285
H5 0.000 -2.358 -0.285
H6 0.892 1.352 -1.437
H7 -0.892 1.352 -1.437
H8 -0.892 -1.352 -1.437
H9 0.892 -1.352 -1.437

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.92311.92312.47742.47742.50692.50692.50692.5069
C21.92312.83391.08423.81291.08401.08402.97312.9731
C31.92312.83393.81291.08422.97312.97311.08401.0840
H42.47741.08423.81294.71531.77021.77023.98583.9858
H52.47743.81291.08424.71533.98583.98581.77021.7702
H62.50691.08402.97311.77023.98581.78323.23952.7046
H72.50691.08402.97311.77023.98581.78322.70463.2395
H82.50692.97311.08403.98581.77023.23952.70461.7832
H92.50692.97311.08403.98581.77022.70463.23951.7832

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.641 Se1 C2 H6 109.785
Se1 C2 H7 109.785 Se1 C3 H5 107.641
Se1 C3 H8 109.785 Se1 C3 H9 109.785
C2 Se1 C3 94.920 H4 C2 H6 109.453
H4 C2 H7 109.453 H5 C3 H8 109.453
H5 C3 H9 109.453 H6 C2 H7 110.668
H8 C3 H9 110.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability