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All results from a given calculation for CH3SeCH3 (dimethylselenide)

using model chemistry: wB97X-D/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/SDD
 hartrees
Energy at 0K-89.135773
Energy at 298.15K-89.139815
HF Energy-89.135773
Nuclear repulsion energy59.405984
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 wB97X-D/SDD
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 3215 3215 18.48      
2 A1 3086 3086 38.26      
3 A1 1516 1516 3.28      
4 A1 1392 1392 0.34      
5 A1 1027 1027 33.51      
6 A1 600 600 0.32      
7 A1 218 218 0.09      
8 A2 3209 3209 0.00      
9 A2 1502 1502 0.00      
10 A2 933 933 0.00      
11 A2 122 122 0.00      
12 B1 3205 3205 50.13      
13 B1 1512 1512 29.34      
14 B1 965 965 29.71      
15 B1 144 144 0.29      
16 B2 3214 3214 9.87      
17 B2 3090 3090 44.89      
18 B2 1508 1508 19.65      
19 B2 1370 1370 0.20      
20 B2 906 906 0.94      
21 B2 621 621 0.51      

Unscaled Zero Point Vibrational Energy (zpe) 16677.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16677.0 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 wB97X-D/SDD
ABC
0.36296 0.22432 0.14643

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Se1 0.000 0.000 0.485
C2 0.000 1.473 -0.840
C3 0.000 -1.473 -0.840
H4 0.000 2.413 -0.284
H5 0.000 -2.413 -0.284
H6 0.896 1.418 -1.462
H7 -0.896 1.418 -1.462
H8 -0.896 -1.418 -1.462
H9 0.896 -1.418 -1.462

Atom - Atom Distances (Å)
  Se1 C2 C3 H4 H5 H6 H7 H8 H9
Se11.98181.98182.53212.53212.56992.56992.56992.5699
C21.98182.94621.09203.92531.09181.09183.08963.0896
C31.98182.94623.92531.09203.08963.08961.09181.0918
H42.53211.09203.92534.82501.78351.78354.10624.1062
H52.53213.92531.09204.82504.10624.10621.78351.7835
H62.56991.09183.08961.78354.10621.79193.35402.8353
H72.56991.09183.08961.78354.10621.79192.83533.3540
H82.56993.08961.09184.10621.78353.35402.83531.7919
H92.56993.08961.09184.10621.78352.83533.35401.7919

picture of dimethylselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se1 C2 H4 107.361 Se1 C2 H6 110.063
Se1 C2 H7 110.063 Se1 C3 H5 107.361
Se1 C3 H8 110.063 Se1 C3 H9 110.063
C2 Se1 C3 96.029 H4 C2 H6 109.508
H4 C2 H7 109.508 H5 C3 H8 109.508
H5 C3 H9 109.508 H6 C2 H7 110.285
H8 C3 H9 110.285
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Se 0.234      
2 C -0.866      
3 C -0.866      
4 H 0.246      
5 H 0.246      
6 H 0.252      
7 H 0.252      
8 H 0.252      
9 H 0.252      


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 -1.749 1.749
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.683 0.000 0.000
y 0.000 -25.055 0.000
z 0.000 0.000 -28.554
Traceless
 xyz
x -3.878 0.000 0.000
y 0.000 4.564 0.000
z 0.000 0.000 -0.685
Polar
3z2-r2-1.371
x2-y2-5.628
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.694 0.000 0.000
y 0.000 7.862 0.000
z 0.000 0.000 6.732


<r2> (average value of r2) Å2
<r2> 85.078
(<r2>)1/2 9.224