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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: B2PLYP=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 B2PLYP=FULL/cc-pVTZ
 hartrees
Energy at 0K-2480.996586
Energy at 298.15K-2481.000671
HF Energy-2480.780419
Nuclear repulsion energy186.437963
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/cc-pVTZ
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 3166 3026 8.96      
2 A1 3072 2936 23.52      
3 A1 1496 1430 0.36      
4 A1 1334 1275 2.33      
5 A1 985 941 16.19      
6 A1 599 573 0.16      
7 A1 210 201 0.01      
8 A2 3163 3023 0.00      
9 A2 1477 1411 0.00      
10 A2 904 864 0.00      
11 A2 157 150 0.00      
12 B1 3157 3017 16.15      
13 B1 1485 1419 12.28      
14 B1 933 892 9.74      
15 B1 152 145 0.30      
16 B2 3167 3027 2.26      
17 B2 3076 2940 22.43      
18 B2 1490 1424 14.07      
19 B2 1312 1254 9.25      
20 B2 865 827 0.36      
21 B2 616 589 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 16407.3 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 15682.1 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/cc-pVTZ
ABC
0.37790 0.22884 0.15069

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.475
C2 0.000 1.457 -0.822
C3 0.000 -1.457 -0.822
H4 0.000 2.384 -0.258
H5 0.000 -2.384 -0.258
H6 0.891 1.411 -1.439
H7 -0.891 1.411 -1.439
H8 -0.891 -1.411 -1.439
H9 0.891 -1.411 -1.439

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.95061.95062.49452.49452.53902.53902.53902.5390
C21.95062.91491.08513.88311.08501.08503.06633.0663
C31.95062.91493.88311.08513.06633.06631.08501.0850
H42.49451.08513.88314.76901.77121.77124.07364.0736
H52.49453.88311.08514.76904.07364.07361.77121.7712
H62.53901.08503.06631.77124.07361.78253.33762.8217
H72.53901.08503.06631.77124.07361.78252.82173.3376
H82.53903.06631.08504.07361.77123.33762.82171.7825
H92.53903.06631.08504.07361.77122.82173.33761.7825

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.032 Se1 C2 H6 110.238
Se1 C2 H7 110.238 Se1 C3 H5 107.032
Se1 C3 H8 110.238 Se1 C3 H9 110.238
C2 Se1 C3 96.692 H4 C2 H6 109.407
H4 C2 H7 109.407 H5 C3 H8 109.407
H5 C3 H9 109.407 H6 C2 H7 110.449
H8 C3 H9 110.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability