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All results from a given calculation for C6H4Cl2 (1,4-dichlorobenzene)

using model chemistry: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-1149.832286
Energy at 298.15K 
HF Energy-1148.531277
Nuclear repulsion energy449.461302
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(2df,p)
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G(2df,p)
ABC
0.18940 0.02230 0.01995

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.380
C2 0.000 0.000 -1.380
C3 0.000 1.212 0.696
C4 0.000 -1.212 0.696
C5 0.000 -1.212 -0.696
C6 0.000 1.212 -0.696
Cl7 0.000 0.000 3.120
Cl8 0.000 0.000 -3.120
H9 0.000 2.144 1.245
H10 0.000 -2.144 1.245
H11 0.000 -2.144 -1.245
H12 0.000 2.144 -1.245

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.75991.39131.39132.40382.40381.73994.49982.14862.14863.38963.3896
C22.75992.40382.40381.39131.39134.49981.73993.38963.38962.14862.1486
C31.39132.40382.42332.79491.39242.70964.00381.08233.40063.87712.1538
C41.39132.40382.42331.39242.79492.70964.00383.40061.08232.15383.8771
C52.40381.39132.79491.39242.42334.00382.70963.87712.15381.08233.4006
C62.40381.39131.39242.79492.42334.00382.70962.15383.87713.40061.0823
Cl71.73994.49982.70962.70964.00384.00386.23972.84822.84824.86334.8633
Cl84.49981.73994.00384.00382.70962.70966.23974.86334.86332.84822.8482
H92.14863.38961.08233.40063.87712.15382.84824.86334.28874.95932.4904
H102.14863.38963.40061.08232.15383.87712.84824.86334.28872.49044.9593
H113.38962.14863.87712.15381.08233.40064.86332.84824.95932.49044.2887
H123.38962.14862.15383.87713.40061.08234.86332.84822.49044.95934.2887

picture of 1,4-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 C6 119.435 C1 C3 H9 120.083
C1 C4 C5 119.435 C1 C4 H10 120.083
C2 C5 C4 119.435 C2 C5 H11 120.083
C2 C6 C3 119.435 C2 C6 H12 120.083
C3 C1 C4 121.130 C3 C1 Cl7 119.435
C3 C6 H12 120.482 C4 C1 Cl7 119.435
C4 C5 H11 120.482 C5 C2 C6 121.130
C5 C2 Cl8 119.435 C5 C4 H10 120.482
C6 C2 Cl8 119.435 C6 C3 H9 120.482
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability