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All results from a given calculation for C6H2 (hexatriyne)

using model chemistry: QCISD(T)=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at QCISD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-229.335451
Energy at 298.15K 
HF Energy-228.253831
Nuclear repulsion energy143.553871
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 QCISD(T)=FULL/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/aug-cc-pVTZ
B
0.04411

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVTZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.608
C2 0.000 0.000 -0.608
C3 0.000 0.000 1.973
C4 0.000 0.000 -1.973
C5 0.000 0.000 3.186
C6 0.000 0.000 -3.186
H7 0.000 0.000 4.247
H8 0.000 0.000 -4.247

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8
C11.21701.36412.58112.57703.79403.63864.8556
C21.21702.58111.36413.79402.57704.85563.6386
C31.36412.58113.94521.21295.15812.27456.2197
C42.58111.36413.94525.15811.21296.21972.2745
C52.57703.79401.21295.15816.37101.06167.4326
C63.79402.57705.15811.21296.37107.43261.0616
H73.63864.85562.27456.21971.06167.43268.4942
H84.85563.63866.21972.27457.43261.06168.4942

picture of hexatriyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 C5 180.000
C2 C1 C3 180.000 C2 C4 C6 180.000
C3 C5 H7 180.000 C4 C6 H8 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability