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All results from a given calculation for C8H6 (benzocyclobutadiene)

using model chemistry: CCSD=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-307.832635
Energy at 298.15K 
HF Energy-306.434955
Nuclear repulsion energy314.193367
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 CCSD=FULL/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.434 -0.613
C2 0.000 0.680 -1.834
C3 0.000 -0.680 -1.834
C4 0.000 -1.434 -0.613
C5 0.000 -0.672 2.031
C6 0.000 0.672 2.031
C7 0.000 0.714 0.521
C8 0.000 -0.714 0.521
H9 0.000 2.510 -0.640
H10 0.000 1.210 -2.770
H11 0.000 -1.210 -2.770
H12 0.000 -2.510 -0.640
H13 0.000 -1.434 2.786
H14 0.000 1.434 2.786

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.43552.44152.86893.38072.75151.34372.42961.07562.16833.41273.94424.44813.3997
C21.43551.35962.44154.09473.86502.35572.73702.18521.07562.10913.40585.08134.6819
C32.44151.35961.43553.86504.09472.73702.35573.40582.10911.07562.18524.68195.0813
C42.86892.44151.43552.75153.38072.42961.34373.94423.41272.16831.07563.39974.4481
C53.38074.09473.86502.75151.34492.04971.51024.15435.15664.83063.24151.07292.2380
C62.75153.86504.09473.38071.34491.51022.04973.24154.83065.15664.15432.23801.0729
C71.34372.35572.73702.42962.04971.51021.42822.13823.32823.81243.42653.12192.3770
C82.42962.73702.35571.34371.51022.04971.42823.42653.81243.32822.13822.37703.1219
H91.07562.18523.40583.94424.15433.24152.13823.42652.49494.28685.01945.22433.5912
H102.16831.07562.10913.41275.15664.83063.32823.81242.49492.42104.28686.15355.5608
H113.41272.10911.07562.16834.83065.15663.81243.32824.28682.42102.49495.56086.1535
H123.94423.40582.18521.07563.24154.15433.42652.13825.01944.28682.49493.59125.2243
H134.44815.08134.68193.39971.07292.23803.12192.37705.22436.15355.56083.59122.8681
H143.39974.68195.08134.44812.23801.07292.37703.12193.59125.56086.15355.22432.8681

picture of benzocyclobutadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 121.716 C1 C2 H10 118.719
C1 C7 C6 149.163 C1 C7 N8 122.417
C2 C1 C7 115.867 C2 C1 H9 120.295
C2 C3 C4 121.716 C2 C3 H11 119.565
C3 C2 H10 119.565 C3 C4 N8 115.867
C3 C4 H12 120.295 C4 C3 H11 118.719
C4 N8 C5 149.163 C4 N8 C7 122.417
C5 C6 C7 91.580 C5 C6 H14 135.220
C5 N8 C7 88.420 C6 C5 N8 91.580
C6 C5 H13 135.220 C6 C7 N8 88.420
C7 C1 H9 123.839 C7 C6 H14 133.199
N8 C4 H12 123.839 N8 C5 H13 133.199
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability