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All results from a given calculation for CCO (Dicarbon monoxide)

using model chemistry: ROHF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ
Energy calculated at ROHF/6-31G
 hartrees
Energy at 0K-150.379611
Energy at 298.15K-150.378016
HF Energy-150.379611
Nuclear repulsion energy45.996469
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 2054 1839 184.55      
2 Σ 1143 1023 4.21      
3 Π 394 353 59.96      
3 Π 394 353 59.96      

Unscaled Zero Point Vibrational Energy (zpe) 1992.7 cm-1
Scaled (by 0.8953) Zero Point Vibrational Energy (zpe) 1784.1 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
0.38747

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 -1.413
C2 0.000 0.000 -0.059
O3 0.000 0.000 1.104

Atom - Atom Distances (Å)
  C1 C2 O3
C11.35432.5173
C21.35431.1631
O32.51731.1631

picture of Dicarbon monoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 180.000
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 0.084      
2 C 0.232      
3 O -0.316      


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 1.205 1.205
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.804 0.000 0.000
y 0.000 -15.804 0.000
z 0.000 0.000 -24.033
Traceless
 xyz
x 4.114 0.000 0.000
y 0.000 4.114 0.000
z 0.000 0.000 -8.229
Polar
3z2-r2-16.458
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 0.000 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> 33.341
(<r2>)1/2 5.774