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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-2480.839161
Energy at 298.15K 
HF Energy-2480.681835
Nuclear repulsion energy185.282719
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 B2PLYP=FULLultrafine/aug-cc-pVDZ
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 3174 3054 9.54      
2 A1 3063 2947 25.74      
3 A1 1458 1403 0.55      
4 A1 1310 1261 2.40      
5 A1 974 937 13.68      
6 A1 593 571 0.27      
7 A1 208 200 0.01      
8 A2 3167 3047 0.00      
9 A2 1441 1387 0.00      
10 A2 890 857 0.00      
11 A2 146 140 0.00      
12 B1 3161 3041 14.70      
13 B1 1451 1396 10.94      
14 B1 920 885 8.17      
15 B1 150 144 0.23      
16 B2 3174 3055 3.17      
17 B2 3066 2951 23.54      
18 B2 1452 1397 12.92      
19 B2 1287 1238 10.07      
20 B2 856 824 0.26      
21 B2 610 587 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 16274.7 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 15661.2 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 B2PLYP=FULLultrafine/aug-cc-pVDZ
ABC
0.37142 0.22701 0.14903

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.479
C2 0.000 1.462 -0.828
C3 0.000 -1.462 -0.828
H4 0.000 2.402 -0.265
H5 0.000 -2.402 -0.265
H6 0.900 1.413 -1.452
H7 -0.900 1.413 -1.452
H8 -0.900 -1.413 -1.452
H9 0.900 -1.413 -1.452

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.96141.96142.51462.51462.55622.55622.55622.5562
C21.96142.92451.09593.90521.09591.09593.07673.0767
C31.96142.92453.90521.09593.07673.07671.09591.0959
H42.51461.09593.90524.80431.78801.78804.09574.0957
H52.51463.90521.09594.80434.09574.09571.78801.7880
H62.55621.09593.07671.78804.09571.80013.35082.8262
H72.55621.09593.07671.78804.09571.80012.82623.3508
H82.55623.07671.09594.09571.78803.35082.82621.8001
H92.55623.07671.09594.09571.78802.82623.35081.8001

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.256 Se1 C2 H6 110.223
Se1 C2 H7 110.223 Se1 C3 H5 107.256
Se1 C3 H8 110.223 Se1 C3 H9 110.223
C2 Se1 C3 96.407 H4 C2 H6 109.326
H4 C2 H7 109.326 H5 C3 H8 109.326
H5 C3 H9 109.326 H6 C2 H7 110.422
H8 C3 H9 110.422
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability