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

using model chemistry: B2PLYP=FULLultrafine/STO-3G

19 10 17 12 22

States and conformations

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

Conformer 1 (D*H)

Jump to S1C2
Energy calculated at B2PLYP=FULLultrafine/STO-3G
 hartrees
Energy at 0K-112.432241
Energy at 298.15K 
HF Energy-112.357716
Nuclear repulsion energy35.815363
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 B2PLYP=FULLultrafine/STO-3G
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 1213 1213 0.00      
2 Σu 2107 2107 657.77      
3 Πu 185 185 7.94      
3 Πu 185 185 7.94      

Unscaled Zero Point Vibrational Energy (zpe) 1844.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1844.9 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 B2PLYP=FULLultrafine/STO-3G
B
0.39723

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/STO-3G

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 1.330
C3 0.000 0.000 -1.330

Atom - Atom Distances (Å)
  C1 C2 C3
C11.32981.3298
C21.32982.6595
C31.32982.6595

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

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B2PLYP=FULLultrafine/STO-3G
 hartrees
Energy at 0K-112.432241
Energy at 298.15K 
HF Energy-112.357718
Nuclear repulsion energy35.815644
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 B2PLYP=FULLultrafine/STO-3G
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 1213 1213 0.00      
2 Σu 2107 2107 657.78      
3 Πu 185 185 7.94      
3 Πu 185 185 7.94      

Unscaled Zero Point Vibrational Energy (zpe) 1844.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1844.9 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 B2PLYP=FULLultrafine/STO-3G
B
0.39723

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/STO-3G

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 -1.330
C3 0.000 0.000 1.330

Atom - Atom Distances (Å)
  C1 C2 C3
C11.32981.3298
C21.32982.6595
C31.32982.6595

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 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability