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All results from a given calculation for C8H6 (benzocyclobutadiene)

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-307.423040
Energy at 298.15K 
HF Energy-306.345379
Nuclear repulsion energy312.366917
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 MP3/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP3/6-31+G**
ABC
0.16077 0.07332 0.05035

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.451 -0.619
C2 0.000 0.687 -1.846
C3 0.000 -0.687 -1.846
C4 0.000 -1.451 -0.619
C5 0.000 -0.677 2.045
C6 0.000 0.677 2.045
C7 0.000 0.718 0.522
C8 0.000 -0.718 0.522
H9 0.000 2.531 -0.645
H10 0.000 1.221 -2.786
H11 0.000 -1.221 -2.786
H12 0.000 -2.531 -0.645
H13 0.000 -1.432 2.815
H14 0.000 1.432 2.815

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14
C11.44512.46432.90113.40902.77381.35582.45071.08122.17883.43963.98214.48293.4335
C21.44511.37342.46434.12253.89052.36802.75332.20091.08112.12663.43475.11914.7194
C32.46431.37341.44513.89054.12252.75332.36803.43472.12661.08112.20094.71945.1191
C42.90112.46431.44512.77383.40902.45071.35583.98213.43962.17881.08123.43354.4829
C53.40904.12253.89052.77381.35392.06521.52324.18685.18984.86093.26731.07802.2448
C62.77383.89054.12253.40901.35391.52322.06523.26734.86095.18984.18682.24481.0780
C71.35582.36802.75332.45072.06521.52321.43662.15643.34573.83433.45303.14292.4008
C82.45072.75332.36801.35581.52322.06521.43663.45303.83433.34572.15642.40083.1429
H91.08122.20093.43473.98214.18683.26732.15643.45302.50984.31985.06285.26083.6303
H102.17881.08112.12663.43965.18984.86093.34573.83432.50982.44174.31986.19665.6041
H113.43962.12661.08112.17884.86095.18983.83433.34574.31982.44172.50985.60416.1966
H123.98213.43472.20091.08123.26734.18683.45302.15645.06284.31982.50983.63035.2608
H134.48295.11914.71943.43351.07802.24483.14292.40085.26086.19665.60413.63032.8635
H143.43354.71945.11914.48292.24481.07802.40083.14293.63035.60416.19665.26082.8635

picture of benzocyclobutadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 121.909 C1 C2 H10 118.481
C1 C7 C6 148.866 C1 C7 N8 122.690
C2 C1 C7 115.401 C2 C1 H9 120.516
C2 C3 C4 121.909 C2 C3 H11 119.610
C3 C2 H10 119.610 C3 C4 N8 115.401
C3 C4 H12 120.516 C4 C3 H11 118.481
C4 N8 C5 148.866 C4 N8 C7 122.690
C5 C6 C7 91.556 C5 C6 H14 134.441
C5 N8 C7 88.444 C6 C5 N8 91.556
C6 C5 H13 134.441 C6 C7 N8 88.444
C7 C1 H9 124.084 C7 C6 H14 134.003
N8 C4 H12 124.084 N8 C5 H13 134.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability