return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CS2 (Carbon disulfide)

using model chemistry: PBEPBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at PBEPBE/6-31G
 hartrees
Energy at 0K-834.010977
Energy at 298.15K-834.010446
HF Energy-834.010977
Nuclear repulsion energy105.283463
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/6-31G
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 608 600 0.00 24.63 0.30 0.46
2 Σu 1485 1464 391.16 0.00 0.00 0.00
3 Πu 356 351 2.13 0.00 0.00 0.00
3 Πu 356 351 2.13 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1402.9 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 1383.5 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/6-31G
B
0.10191

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
S2 0.000 0.000 1.608
S3 0.000 0.000 -1.608

Atom - Atom Distances (Å)
  C1 S2 S3
C11.60841.6084
S21.60843.2168
S31.60843.2168

picture of Carbon disulfide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S2 C1 S3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.411      
2 S 0.205      
3 S 0.205      


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 -31.321 0.000 0.000
y 0.000 -31.321 0.000
z 0.000 0.000 -30.793
Traceless
 xyz
x -0.264 0.000 0.000
y 0.000 -0.264 0.000
z 0.000 0.000 0.528
Polar
3z2-r21.056
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 2.608 0.000 0.000
y 0.000 2.608 0.000
z 0.000 0.000 12.884


<r2> (average value of r2) Å2
<r2> 102.234
(<r2>)1/2 10.111