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All results from a given calculation for CO (Carbon monoxide)

using model chemistry: ROHF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
2 1 yes C*V 3Π

State 1 (1Σ)

Jump to S2C1
Vibrational Frequencies calculated at ROHF/6-31G
Rotational Constants (cm-1) from geometry optimized at ROHF/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3Π)

Jump to S1C1
Energy calculated at ROHF/6-31G
 hartrees
Energy at 0K-112.501164
Energy at 298.15K-112.499901
HF Energy-112.501164
Nuclear repulsion energy20.403423
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 ROHF/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 Σ 1453 1301 9.66      

Unscaled Zero Point Vibrational Energy (zpe) 726.4 cm-1
Scaled (by 0.8953) Zero Point Vibrational Energy (zpe) 650.3 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 ROHF/6-31G
B
1.58648

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.711
O2 0.000 0.000 0.534

Atom - Atom Distances (Å)
  C1 O2
C11.2449
O21.2449

picture of Carbon monoxide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.376      
2 O -0.376      


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 -2.146 2.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.171 0.000 0.000
y 0.000 -10.004 0.000
z 0.000 0.000 -10.376
Traceless
 xyz
x -0.981 0.000 0.000
y 0.000 0.769 0.000
z 0.000 0.000 0.212
Polar
3z2-r20.423
x2-y2-1.167
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 11.883
(<r2>)1/2 3.447