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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: PBEPBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/TZVP
 hartrees
Energy at 0K-2480.918021
Energy at 298.15K-2480.921993
HF Energy-2480.918021
Nuclear repulsion energy184.640911
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 PBEPBE/TZVP
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 3088 3054 9.55      
2 A1 2986 2952 24.32      
3 A1 1432 1416 0.77      
4 A1 1279 1264 2.93      
5 A1 950 939 20.72      
6 A1 569 563 0.22      
7 A1 202 200 0.03      
8 A2 3083 3049 0.00      
9 A2 1411 1395 0.00      
10 A2 866 856 0.00      
11 A2 157 155 0.00      
12 B1 3077 3042 17.82      
13 B1 1419 1403 14.56      
14 B1 898 888 14.77      
15 B1 148 147 0.52      
16 B2 3089 3055 1.72      
17 B2 2989 2956 21.79      
18 B2 1426 1410 18.99      
19 B2 1256 1242 5.21      
20 B2 832 823 0.17      
21 B2 582 576 1.28      

Unscaled Zero Point Vibrational Energy (zpe) 15869.3 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 15691.6 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 PBEPBE/TZVP
ABC
0.37281 0.22356 0.14778

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.477
C2 0.000 1.474 -0.827
C3 0.000 -1.474 -0.827
H4 0.000 2.406 -0.248
H5 0.000 -2.406 -0.248
H6 0.901 1.435 -1.451
H7 -0.901 1.435 -1.451
H8 -0.901 -1.435 -1.451
H9 0.901 -1.435 -1.451

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.96851.96852.51312.51312.56712.56712.56712.5671
C21.96852.94841.09693.92311.09681.09683.10903.1090
C31.96852.94843.92311.09693.10903.10901.09681.0968
H42.51311.09693.92314.81201.78911.78914.12464.1246
H52.51313.92311.09694.81204.12464.12461.78911.7891
H62.56711.09683.10901.78914.12461.80263.38942.8702
H72.56711.09683.10901.78914.12461.80262.87023.3894
H82.56713.10901.09684.12461.78913.38942.87021.8026
H92.56713.10901.09684.12461.78912.87023.38941.8026

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 106.650 Se1 C2 H6 110.499
Se1 C2 H7 110.499 Se1 C3 H5 106.650
Se1 C3 H8 110.499 Se1 C3 H9 110.499
C2 Se1 C3 96.990 H4 C2 H6 109.289
H4 C2 H7 109.289 H5 C3 H8 109.289
H5 C3 H9 109.289 H6 C2 H7 110.523
H8 C3 H9 110.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se -0.032      
2 C -0.411      
3 C -0.411      
4 H 0.144      
5 H 0.144      
6 H 0.142      
7 H 0.142      
8 H 0.142      
9 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.497 1.497
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.677 0.000 0.000
y 0.000 -29.418 0.000
z 0.000 0.000 -32.731
Traceless
 xyz
x -3.603 0.000 0.000
y 0.000 4.286 0.000
z 0.000 0.000 -0.684
Polar
3z2-r2-1.367
x2-y2-5.259
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.578 0.000 0.000
y 0.000 8.992 0.000
z 0.000 0.000 7.529


<r2> (average value of r2) Å2
<r2> 93.804
(<r2>)1/2 9.685