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All results from a given calculation for CSe2 (Carbon diselenide)

using model chemistry: B1B95/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1A1
Energy calculated at B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-4841.807379
Energy at 298.15K-4841.803245
HF Energy-4841.807379
Nuclear repulsion energy308.225806
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 B1B95/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 Σg 390 373 0.00      
2 Σu 1364 1307 586.52      
3 Πu 321 308 7.57      
3 Πu 321 308 7.57      

Unscaled Zero Point Vibrational Energy (zpe) 1198.2 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 1147.8 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 B1B95/aug-cc-pVDZ
B
0.03681

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
Se2 0.000 0.000 1.693
Se3 0.000 0.000 -1.693

Atom - Atom Distances (Å)
  C1 Se2 Se3
C11.69281.6928
Se21.69283.3856
Se31.69283.3856

picture of Carbon diselenide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se2 C1 Se3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.683      
2 Se 0.341      
3 Se 0.341      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.269 0.000 0.000
y 0.000 -42.269 0.000
z 0.000 0.000 -36.922
Traceless
 xyz
x -2.673 0.000 0.000
y 0.000 -2.673 0.000
z 0.000 0.000 5.346
Polar
3z2-r210.693
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.651 0.000 0.000
y 0.000 6.651 0.000
z 0.000 0.000 18.177


<r2> (average value of r2) Å2
<r2> 220.149
(<r2>)1/2 14.837