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

using model chemistry: TPSSh/TZVP

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 TPSSh/TZVP
 hartrees
Energy at 0K-4841.071469
Energy at 298.15K-4841.067309
HF Energy-4841.071469
Nuclear repulsion energy307.374280
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 TPSSh/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 Σg 380 366 0.00      
2 Σu 1332 1283 485.13      
3 Πu 317 305 9.04      
3 Πu 317 305 9.04      

Unscaled Zero Point Vibrational Energy (zpe) 1172.2 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 1129.7 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 TPSSh/TZVP
B
0.03660

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

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 1.698
Se3 0.000 0.000 -1.698

Atom - Atom Distances (Å)
  C1 Se2 Se3
C11.69751.6975
Se21.69753.3950
Se31.69753.3950

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 TPSSh/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.211      
2 Se 0.105      
3 Se 0.105      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.460 0.000 0.000
y 0.000 4.460 0.000
z 0.000 0.000 17.721


<r2> (average value of r2) Å2
<r2> 221.145
(<r2>)1/2 14.871