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

using model chemistry: ROHF/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-150.531957
Energy at 298.15K-150.530558
HF Energy-150.531957
Nuclear repulsion energy46.901265
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/aug-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 2221 2221 407.73      
2 Σ 1162 1162 0.19      
3 Π 502 502 62.66      
3 Π 502 502 62.66      

Unscaled Zero Point Vibrational Energy (zpe) 2194.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2194.1 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/aug-cc-pVQZ
B
0.40038

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.396
C2 0.000 0.000 -0.046
O3 0.000 0.000 1.081

Atom - Atom Distances (Å)
  C1 C2 O3
C11.34992.4771
C21.34991.1272
O32.47711.1272

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/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.223      
2 C 0.650      
3 O -0.427      


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 1.579 1.579
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.945 0.000 0.000
y 0.000 -15.945 0.000
z 0.000 0.000 -23.164
Traceless
 xyz
x 3.609 0.000 0.000
y 0.000 3.609 0.000
z 0.000 0.000 -7.219
Polar
3z2-r2-14.438
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> 32.517
(<r2>)1/2 5.702