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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: B2PLYP=FULL/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=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-2480.839162
Energy at 298.15K-2480.843201
HF Energy-2480.681834
Nuclear repulsion energy185.279255
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=FULL/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 3053 9.55      
2 A1 3063 2946 25.72      
3 A1 1459 1403 0.55      
4 A1 1310 1260 2.37      
5 A1 974 937 13.67      
6 A1 592 570 0.28      
7 A1 208 200 0.01      
8 A2 3167 3046 0.00      
9 A2 1441 1386 0.00      
10 A2 890 856 0.00      
11 A2 147 142 0.00      
12 B1 3161 3040 14.69      
13 B1 1451 1395 10.95      
14 B1 919 884 8.14      
15 B1 151 145 0.23      
16 B2 3175 3054 3.16      
17 B2 3067 2950 23.54      
18 B2 1452 1397 12.91      
19 B2 1287 1237 10.08      
20 B2 856 823 0.26      
21 B2 610 586 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 16276.6 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 15654.9 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 B2PLYP=FULL/aug-cc-pVDZ
ABC
0.37119 0.22709 0.14903

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/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 -0.829
C3 0.000 -1.462 -0.829
H4 0.000 2.402 -0.266
H5 0.000 -2.402 -0.266
H6 0.900 1.412 -1.452
H7 -0.900 1.412 -1.452
H8 -0.900 -1.412 -1.452
H9 0.900 -1.412 -1.452

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.96151.96152.51482.51482.55612.55612.55612.5561
C21.96152.92391.09593.90491.09591.09593.07583.0758
C31.96152.92393.90491.09593.07583.07581.09591.0959
H42.51481.09593.90494.80421.78811.78814.09494.0949
H52.51483.90491.09594.80424.09494.09491.78811.7881
H62.55611.09593.07581.78814.09491.80023.34972.8248
H72.55611.09593.07581.78814.09491.80022.82483.3497
H82.55613.07581.09594.09491.78813.34972.82481.8002
H92.55613.07581.09594.09491.78812.82483.34971.8002

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.266 Se1 C2 H6 110.209
Se1 C2 H7 110.209 Se1 C3 H5 107.266
Se1 C3 H8 110.209 Se1 C3 H9 110.209
C2 Se1 C3 96.376 H4 C2 H6 109.332
H4 C2 H7 109.332 H5 C3 H8 109.332
H5 C3 H9 109.332 H6 C2 H7 110.430
H8 C3 H9 110.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability