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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: CCD/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 CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-2479.540652
Energy at 298.15K-2479.544731
HF Energy-2479.042674
Nuclear repulsion energy185.360187
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 CCD/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 3167 3054 10.22      
2 A1 3058 2949 25.24      
3 A1 1471 1419 0.35      
4 A1 1333 1285 2.55      
5 A1 984 949 13.29      
6 A1 608 587 0.09      
7 A1 212 204 0.00      
8 A2 3159 3047 0.00      
9 A2 1452 1400 0.00      
10 A2 902 870 0.00      
11 A2 145 140 0.00      
12 B1 3153 3042 16.25      
13 B1 1462 1410 9.63      
14 B1 931 898 7.00      
15 B1 153 148 0.19      
16 B2 3167 3055 4.80      
17 B2 3061 2952 22.82      
18 B2 1465 1413 11.21      
19 B2 1310 1264 9.96      
20 B2 867 836 0.13      
21 B2 627 604 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 16342.9 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 15762.7 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 CCD/aug-cc-pVDZ
ABC
0.36831 0.22900 0.14944

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.481
C2 0.000 1.454 -0.831
C3 0.000 -1.454 -0.831
H4 0.000 2.404 -0.275
H5 0.000 -2.404 -0.275
H6 0.903 1.401 -1.458
H7 -0.903 1.401 -1.458
H8 -0.903 -1.401 -1.458
H9 0.903 -1.401 -1.458

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.95891.95892.52062.52062.55702.55702.55702.5570
C21.95892.90871.10073.89861.10081.10083.05953.0595
C31.95892.90873.89861.10073.05953.05951.10081.1008
H42.52061.10073.89864.80891.79501.79504.08584.0858
H52.52063.89861.10074.80894.08584.08581.79501.7950
H62.55701.10083.05951.79504.08581.80683.33352.8015
H72.55701.10083.05951.79504.08581.80682.80153.3335
H82.55703.05951.10084.08581.79503.33352.80151.8068
H92.55703.05951.10084.08581.79502.80153.33351.8068

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.608 Se1 C2 H6 110.199
Se1 C2 H7 110.199 Se1 C3 H5 107.608
Se1 C3 H8 110.199 Se1 C3 H9 110.199
C2 Se1 C3 95.875 H4 C2 H6 109.241
H4 C2 H7 109.241 H5 C3 H8 109.241
H5 C3 H9 109.241 H6 C2 H7 110.298
H8 C3 H9 110.298
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability