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

using model chemistry: HF/3-21G

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 HF/3-21G
 hartrees
Energy at 0K-828.756904
Energy at 298.15K-828.756553
HF Energy-828.756904
Nuclear repulsion energy107.253309
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 HF/3-21G
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 653 591 0.00 16.54 0.35 0.51
2 Σu 1504 1362 1022.95 0.00 0.00 0.00
3 Πu 433 392 0.29 0.00 0.00 0.00
3 Πu 433 392 0.29 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 1511.1 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 1368.5 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 HF/3-21G
B
0.10576

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

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 1.579
S3 0.000 0.000 -1.579

Atom - Atom Distances (Å)
  C1 S2 S3
C11.57881.5788
S21.57883.1577
S31.57883.1577

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

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.723      
2 S 0.362      
3 S 0.362      


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 0.000 0.000 0.000 0.000
AIM        
ESP 0.000 0.000 0.000 0.000


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.640 0.000 0.000
y 0.000 -32.640 0.000
z 0.000 0.000 -32.399
Traceless
 xyz
x -0.121 0.000 0.000
y 0.000 -0.121 0.000
z 0.000 0.000 0.241
Polar
3z2-r20.482
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 2.192 0.000 0.000
y 0.000 2.192 0.000
z 0.000 0.000 12.604


<r2> (average value of r2) Å2
<r2> 100.104
(<r2>)1/2 10.005