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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: PBEPBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-2480.925495
Energy at 298.15K-2480.929449
HF Energy-2480.925495
Nuclear repulsion energy185.216150
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/Def2TZVPP
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 3086 3049 8.97      
2 A1 2983 2947 22.42      
3 A1 1427 1410 0.44      
4 A1 1265 1249 1.38      
5 A1 942 931 15.28      
6 A1 576 569 0.13      
7 A1 201 198 0.04      
8 A2 3080 3042 0.00      
9 A2 1407 1390 0.00      
10 A2 863 852 0.00      
11 A2 156 155 0.00      
12 B1 3072 3035 15.27      
13 B1 1415 1398 12.29      
14 B1 891 881 10.41      
15 B1 143 141 0.40      
16 B2 3087 3050 1.35      
17 B2 2987 2951 20.39      
18 B2 1421 1403 15.50      
19 B2 1244 1229 6.00      
20 B2 826 816 0.38      
21 B2 589 581 1.43      

Unscaled Zero Point Vibrational Energy (zpe) 15829.0 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 15637.5 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 PBEPBE/Def2TZVPP
ABC
0.37466 0.22528 0.14881

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.475
C2 0.000 1.472 -0.824
C3 0.000 -1.472 -0.824
H4 0.000 2.401 -0.245
H5 0.000 -2.401 -0.245
H6 0.900 1.433 -1.447
H7 -0.900 1.433 -1.447
H8 -0.900 -1.433 -1.447
H9 0.900 -1.433 -1.447

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.96271.96272.50702.50702.56082.56082.56082.5608
C21.96272.94311.09533.91601.09561.09563.10393.1039
C31.96272.94313.91601.09533.10393.10391.09561.0956
H42.50701.09533.91604.80291.78701.78704.11784.1178
H52.50703.91601.09534.80294.11784.11781.78701.7870
H62.56081.09563.10391.78704.11781.80043.38432.8656
H72.56081.09563.10391.78704.11781.80042.86563.3843
H82.56083.10391.09564.11781.78703.38432.86561.8004
H92.56083.10391.09564.11781.78702.86563.38431.8004

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 106.669 Se1 C2 H6 110.483
Se1 C2 H7 110.483 Se1 C3 H5 106.669
Se1 C3 H8 110.483 Se1 C3 H9 110.483
C2 Se1 C3 97.137 H4 C2 H6 109.308
H4 C2 H7 109.308 H5 C3 H8 109.308
H5 C3 H9 109.308 H6 C2 H7 110.502
H8 C3 H9 110.502
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se -0.008      
2 C -0.368      
3 C -0.368      
4 H 0.127      
5 H 0.127      
6 H 0.122      
7 H 0.122      
8 H 0.122      
9 H 0.122      


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 -1.462 1.462
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.513 0.000 0.000
y 0.000 -29.471 0.000
z 0.000 0.000 -32.721
Traceless
 xyz
x -3.418 0.000 0.000
y 0.000 4.146 0.000
z 0.000 0.000 -0.728
Polar
3z2-r2-1.457
x2-y2-5.042
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.432 0.000 0.000
y 0.000 9.477 0.000
z 0.000 0.000 8.002


<r2> (average value of r2) Å2
<r2> 93.284
(<r2>)1/2 9.658