return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H5CHCH2 (Styrene)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-308.647169
Energy at 298.15K 
HF Energy-307.582988
Nuclear repulsion energy319.340236
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/6-31G*
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G*
ABC
0.17067 0.05137 0.03987

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.514 -0.220 -0.090
C2 0.008 1.090 -0.126
C3 -1.364 1.326 -0.040
C4 -2.258 0.257 0.071
C5 -1.769 -1.051 0.091
C6 -0.395 -1.285 0.006
C7 1.964 -0.508 -0.158
C8 2.947 0.329 0.207
H9 0.692 1.930 -0.242
H10 -1.738 2.348 -0.072
H11 -3.330 0.443 0.134
H12 -2.458 -1.892 0.171
H13 -0.019 -2.308 0.024
H14 2.231 -1.503 -0.521
H15 3.992 0.041 0.124
H16 2.749 1.321 0.611

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.40482.43242.81732.43601.40331.48062.51252.16253.41583.90633.41892.15812.18673.49512.8044
C21.40481.39472.42302.79112.41282.52633.05401.08902.15313.40983.88043.40193.43844.12762.8478
C32.43241.39471.39832.41462.78503.80184.43142.15221.08942.16193.40453.87544.59965.51054.1642
C42.81732.42301.39831.39642.41924.29755.20773.40612.15991.08902.15973.40534.85826.25465.1478
C52.43602.79112.41461.39641.39623.78094.91553.87983.40322.16071.08932.15594.07185.86415.1295
C61.40332.41282.78502.41921.39622.48963.71743.40263.87433.40772.15581.09042.68744.58514.1286
C71.48062.52633.80184.29753.78092.48961.34212.75124.67725.38654.64472.68471.09222.11992.1338
C82.51253.05404.43145.20774.91553.71741.34212.80135.10946.27815.84323.97382.09831.08761.0885
H92.16251.08902.15223.40613.87983.40262.75122.80132.47204.30414.96904.30553.77243.82002.3086
H103.41582.15311.08942.15993.40323.87434.67725.10942.47202.49084.30704.96475.54896.18084.6541
H113.90633.40982.16191.08902.16073.40775.38656.27814.30412.49082.49224.30595.92757.33296.1604
H123.41893.88043.40452.15971.08932.15584.64475.84324.96904.30702.49222.47814.75506.73326.1338
H132.15813.40193.87543.40532.15591.09042.68473.97384.30554.96474.30592.47812.45104.64984.6023
H142.18673.43844.59964.85824.07182.68741.09222.09833.77245.54895.92754.75502.45102.42963.0865
H153.49514.12765.51056.25465.86414.58512.11991.08763.82006.18087.33296.73324.64982.42961.8496
H162.80442.84784.16425.14785.12954.12862.13381.08852.30864.65416.16046.13384.60233.08651.8496

picture of Styrene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 120.654 C1 C2 H9 119.722
C1 C6 C5 120.949 C1 C6 H13 119.332
C1 C7 C8 125.698 C1 C7 H14 115.574
C2 C1 C6 118.458 C2 C1 C7 122.198
C2 C3 C4 120.338 C2 C3 H10 119.664
C3 C2 H9 119.613 C3 C4 C5 119.532
C3 C4 H11 120.205 C4 C3 H10 119.994
C4 C5 C6 120.055 C4 C5 H12 120.142
C5 C4 H11 120.261 C5 C6 H13 119.716
C6 C1 C7 119.343 C6 C5 H12 119.802
C7 C8 H15 121.141 C7 C8 H16 122.439
C8 C7 H14 118.715 H15 C8 H16 116.416
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability