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

using model chemistry: ROHF/aug-cc-pVTZ

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

State 2 (3Π)

Jump to S1C1
Energy calculated at ROHF/aug-cc-pVTZ
 hartrees
Energy at 0K-112.592234
Energy at 298.15K-112.590980
HF Energy-112.592234
Nuclear repulsion energy21.483571
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-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 1786 1786 4.74      

Unscaled Zero Point Vibrational Energy (zpe) 893.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 893.2 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-pVTZ
B
1.75890

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.676
O2 0.000 0.000 0.507

Atom - Atom Distances (Å)
  C1 O2
C11.1823
O21.1823

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/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.247      
2 O -0.247      


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 -1.899 1.899
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.007 0.000 0.000
y 0.000 -11.475 0.000
z 0.000 0.000 -10.175
Traceless
 xyz
x 0.819 0.000 0.000
y 0.000 -1.384 0.000
z 0.000 0.000 0.566
Polar
3z2-r21.132
x2-y21.469
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> 11.383
(<r2>)1/2 3.374