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

using model chemistry: mPW1PW91/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 mPW1PW91/CEP-121G
 hartrees
Energy at 0K-37.559208
Energy at 298.15K-37.559199
HF Energy-37.559208
Nuclear repulsion energy29.215146
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 mPW1PW91/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 1268 1205 0.00      
2 Σu 2260 2147 599.10      
3 Πu 593 564 27.45      
3 Πu 593 564 27.45      

Unscaled Zero Point Vibrational Energy (zpe) 2357.6 cm-1
Scaled (by 0.9499) Zero Point Vibrational Energy (zpe) 2239.5 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 mPW1PW91/CEP-121G
B
0.36873

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/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 1.195
O3 0.000 0.000 -1.195

Atom - Atom Distances (Å)
  C1 O2 O3
C11.19551.1955
O21.19552.3909
O31.19552.3909

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
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.140      
2 O -0.070      
3 O -0.070      


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 -14.782 0.000 0.000
y 0.000 -14.782 0.000
z 0.000 0.000 -20.675
Traceless
 xyz
x 2.946 0.000 0.000
y 0.000 2.946 0.000
z 0.000 0.000 -5.893
Polar
3z2-r2-11.786
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 1.069 0.000 0.000
y 0.000 1.069 0.000
z 0.000 0.000 3.822


<r2> (average value of r2) Å2
<r2> 27.609
(<r2>)1/2 5.254