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All results from a given calculation for CO2 (Carbon dioxide)

using model chemistry: HF/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-36.800699
Energy at 298.15K-36.800784
HF Energy-36.800699
Nuclear repulsion energy29.775552
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/CEP-121G
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 1370 1250 0.00 14.66 0.16 0.27
2 Σu 2301 2100 1083.36 0.00 0.00 0.00
3 Πu 676 617 66.56 0.00 0.00 0.00
3 Πu 676 617 66.56 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 2511.6 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 2291.8 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 HF/CEP-121G
B
0.38301

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
O2 0.000 0.000 1.173
O3 0.000 0.000 -1.173

Atom - Atom Distances (Å)
  C1 O2 O3
C11.17301.1730
O21.17302.3459
O31.17302.3459

picture of Carbon dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 O3 180.000
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.337      
2 O -0.169      
3 O -0.169      


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 -14.846 0.000 0.000
y 0.000 -14.846 0.000
z 0.000 0.000 -22.101
Traceless
 xyz
x 3.627 0.000 0.000
y 0.000 3.627 0.000
z 0.000 0.000 -7.255
Polar
3z2-r2-14.510
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 0.974 0.000 0.000
y 0.000 0.974 0.000
z 0.000 0.000 3.543


<r2> (average value of r2) Å2
<r2> 27.293
(<r2>)1/2 5.224