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All results from a given calculation for C3 (carbon trimer)

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
1 2 no C2V 1A1

Conformer 1 (D*H)

Jump to S1C2
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-113.993721
Energy at 298.15K 
HF Energy-113.993721
Nuclear repulsion energy36.129100
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 BLYP/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 Σg 1162 1153 0.00      
2 Σu 2060 2045 615.10      
3 Πu 184 183 11.56      
3 Πu 184 183 11.56      

Unscaled Zero Point Vibrational Energy (zpe) 1795.5 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 1781.8 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 BLYP/6-31G
B
0.40421

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 0.000 1.318
C3 0.000 0.000 -1.318

Atom - Atom Distances (Å)
  C1 C2 C3
C11.31821.3182
C21.31822.6364
C31.31822.6364

picture of carbon trimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C2 C1 C3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.128      
2 C 0.064      
3 C 0.064      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.807 0.000 0.000
y 0.000 -15.807 0.000
z 0.000 0.000 -22.511
Traceless
 xyz
x 3.352 0.000 0.000
y 0.000 3.352 0.000
z 0.000 0.000 -6.704
Polar
3z2-r2-13.408
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 2.380 0.000 0.000
y 0.000 2.380 0.000
z 0.000 0.000 6.578


<r2> (average value of r2) Å2
<r2> 32.121
(<r2>)1/2 5.668

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-113.993721
Energy at 298.15K 
HF Energy-113.993721
Nuclear repulsion energy36.128843
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 BLYP/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 A1 1162 1153 0.00      
2 A1 184 183 11.55      
3 B2 2060 2045 615.10      

Unscaled Zero Point Vibrational Energy (zpe) 1703.3 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 1690.4 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 BLYP/6-31G
B
0.40421

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.000 1.318 -0.000
C3 0.000 -1.318 -0.000

Atom - Atom Distances (Å)
  C1 C2 C3
C11.31821.3182
C21.31822.6365
C31.31822.6365

picture of carbon trimer state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C2 C1 C3 179.981
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.128      
2 C 0.064      
3 C 0.064      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.807 0.000 0.000
y 0.000 -22.511 0.000
z 0.000 0.000 -15.807
Traceless
 xyz
x 3.352 0.000 0.000
y 0.000 -6.704 0.000
z 0.000 0.000 3.352
Polar
3z2-r26.704
x2-y26.704
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.380 0.000 0.000
y 0.000 6.578 0.000
z 0.000 0.000 2.380


<r2> (average value of r2) Å2
<r2> 32.121
(<r2>)1/2 5.668