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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: CCSD(T)=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 CCSD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-2479.578193
Energy at 298.15K-2479.582211
HF Energy-2479.042426
Nuclear repulsion energy185.052146
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 CCSD(T)=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 3146 3056        
2 A1 3035 2947        
3 A1 1457 1415        
4 A1 1313 1276        
5 A1 968 940        
6 A1 594 577        
7 A1 207 201        
8 A2 3137 3046        
9 A2 1438 1397        
10 A2 884 859        
11 A2 139 135        
12 B1 3131 3041        
13 B1 1449 1407        
14 B1 916 889        
15 B1 150 145        
16 B2 3147 3056        
17 B2 3038 2951        
18 B2 1451 1409        
19 B2 1291 1253        
20 B2 851 826        
21 B2 612 594        

Unscaled Zero Point Vibrational Energy (zpe) 16175.4 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 15709.5 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 CCSD(T)=FULL/aug-cc-pVDZ
ABC
0.36443 0.22942 0.14901

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.484
C2 0.000 1.453 -0.837
C3 0.000 -1.453 -0.837
H4 0.000 2.406 -0.283
H5 0.000 -2.406 -0.283
H6 0.905 1.394 -1.462
H7 -0.905 1.394 -1.462
H8 -0.905 -1.394 -1.462
H9 0.905 -1.394 -1.462

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.96351.96352.52502.52502.55942.55942.55942.5594
C21.96352.90621.10173.89831.10201.10203.05253.0525
C31.96352.90623.89831.10173.05253.05251.10201.1020
H42.52501.10173.89834.81131.79811.79814.08034.0803
H52.52503.89831.10174.81134.08034.08031.79811.7981
H62.55941.10203.05251.79814.08031.81043.32452.7883
H72.55941.10203.05251.79814.08031.81042.78833.3245
H82.55943.05251.10204.08031.79813.32452.78831.8104
H92.55943.05251.10204.08031.79812.78833.32451.8104

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.574 Se1 C2 H6 110.014
Se1 C2 H7 110.014 Se1 C3 H5 107.574
Se1 C3 H8 110.014 Se1 C3 H9 110.014
C2 Se1 C3 95.475 H4 C2 H6 109.363
H4 C2 H7 109.363 H5 C3 H8 109.363
H5 C3 H9 109.363 H6 C2 H7 110.458
H8 C3 H9 110.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability