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

using model chemistry: ROHF/cc-pVQZ

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

State 2 (3Π)

Jump to S1C1
Energy calculated at ROHF/cc-pVQZ
 hartrees
Energy at 0K-112.598955
Energy at 298.15K-112.597700
HF Energy-112.598955
Nuclear repulsion energy21.513421
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/cc-pVQZ
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 1793 1793 2.84      

Unscaled Zero Point Vibrational Energy (zpe) 896.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 896.4 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/cc-pVQZ
B
1.76379

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/cc-pVQZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.675
O2 0.000 0.000 0.506

Atom - Atom Distances (Å)
  C1 O2
C11.1807
O21.1807

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/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.289      
2 O -0.289      


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 -1.912 1.912
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.965 0.000 0.000
y 0.000 -11.406 0.000
z 0.000 0.000 -10.022
Traceless
 xyz
x 0.749 0.000 0.000
y 0.000 -1.412 0.000
z 0.000 0.000 0.663
Polar
3z2-r21.326
x2-y21.440
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> 11.315
(<r2>)1/2 3.364