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All results from a given calculation for C6H2 (hexatriyne)

using model chemistry: QCISD(T)/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)/aug-cc-pVTZ
 hartrees
Energy at 0K-229.221547
Energy at 298.15K 
HF Energy-228.252082
Nuclear repulsion energy142.862634
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)/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/aug-cc-pVTZ
B
0.04367

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.611
C2 0.000 0.000 -0.611
C3 0.000 0.000 1.984
C4 0.000 0.000 -1.984
C5 0.000 0.000 3.201
C6 0.000 0.000 -3.201
H7 0.000 0.000 4.266
H8 0.000 0.000 -4.266

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 H7 H8
C11.22241.37262.59512.59003.81253.65474.8772
C21.22242.59511.37263.81252.59004.87723.6547
C31.37262.59513.96771.21745.18512.28216.2498
C42.59511.37263.96775.18511.21746.24982.2821
C52.59003.81251.21745.18516.40251.06477.4672
C63.81252.59005.18511.21746.40257.46721.0647
H73.65474.87722.28216.24981.06477.46728.5319
H84.87723.65476.24982.28217.46721.06478.5319

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