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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: MP2=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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-2479.809314
Energy at 298.15K-2479.813468
HF Energy-2479.140798
Nuclear repulsion energy188.455353
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/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 3197 3036 5.58      
2 A1 3102 2945 20.72      
3 A1 1502 1426 0.28      
4 A1 1338 1270 1.35      
5 A1 983 933 16.00      
6 A1 632 600 0.07      
7 A1 215 204 0.00      
8 A2 3195 3034 0.00      
9 A2 1481 1406 0.00      
10 A2 903 857 0.00      
11 A2 161 153 0.00      
12 B1 3188 3027 10.62      
13 B1 1490 1415 13.20      
14 B1 935 888 9.71      
15 B1 164 156 0.28      
16 B2 3198 3037 1.21      
17 B2 3107 2950 17.34      
18 B2 1493 1418 14.28      
19 B2 1314 1248 6.31      
20 B2 862 819 0.35      
21 B2 649 616 1.65      

Unscaled Zero Point Vibrational Energy (zpe) 16554.6 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 15716.9 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/cc-pVTZ
ABC
0.37961 0.23722 0.15451

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.474
C2 0.000 1.429 -0.819
C3 0.000 -1.429 -0.819
H4 0.000 2.363 -0.271
H5 0.000 -2.363 -0.271
H6 0.889 1.377 -1.435
H7 -0.889 1.377 -1.435
H8 -0.889 -1.377 -1.435
H9 0.889 -1.377 -1.435

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.92691.92692.47732.47732.51612.51612.51612.5161
C21.92692.85731.08293.83071.08281.08283.00673.0067
C31.92692.85733.83071.08293.00673.00671.08281.0828
H42.47731.08293.83074.72531.76561.76564.01614.0161
H52.47733.83071.08294.72534.01614.01611.76561.7656
H62.51611.08283.00671.76564.01611.77783.27772.7536
H72.51611.08283.00671.76564.01611.77782.75363.2777
H82.51613.00671.08284.01611.76563.27772.75361.7778
H92.51613.00671.08284.01611.76562.75363.27771.7778

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.449 Se1 C2 H6 110.264
Se1 C2 H7 110.264 Se1 C3 H5 107.449
Se1 C3 H8 110.264 Se1 C3 H9 110.264
C2 Se1 C3 95.705 H4 C2 H6 109.226
H4 C2 H7 109.226 H5 C3 H8 109.226
H5 C3 H9 109.226 H6 C2 H7 110.352
H8 C3 H9 110.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability