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 C6H4Cl2 (1,4-dichlorobenzene)

using model chemistry: CCSD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at CCSD/6-311+G(3df,2p)
 hartrees
Energy at 0K-1149.984509
Energy at 298.15K 
HF Energy-1148.632457
Nuclear repulsion energy450.314267
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/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at CCSD/6-311+G(3df,2p)
ABC
0.19033 0.02237 0.02002

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311+G(3df,2p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.382
C2 0.000 0.000 -1.382
C3 0.000 1.208 0.695
C4 0.000 -1.208 0.695
C5 0.000 -1.208 -0.695
C6 0.000 1.208 -0.695
Cl7 0.000 0.000 3.114
Cl8 0.000 0.000 -3.114
H9 0.000 2.141 1.242
H10 0.000 -2.141 1.242
H11 0.000 -2.141 -1.242
H12 0.000 2.141 -1.242

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.76371.38971.38972.40322.40321.73234.49602.14582.14583.38643.3864
C22.76372.40322.40321.38971.38974.49601.73233.38643.38642.14582.1458
C31.38972.40322.41672.78841.39092.70383.99661.08103.39383.86942.1500
C41.38972.40322.41671.39092.78842.70383.99663.39381.08102.15003.8694
C52.40321.38972.78841.39092.41673.99662.70383.86942.15001.08103.3938
C62.40321.38971.39092.78842.41673.99662.70382.15003.86943.39381.0810
Cl71.73234.49602.70382.70383.99663.99666.22832.84452.84454.85364.8536
Cl84.49601.73233.99663.99662.70382.70386.22834.85364.85362.84452.8445
H92.14583.38641.08103.39383.86942.15002.84454.85364.28254.95032.4832
H102.14583.38643.39381.08102.15003.86942.84454.85364.28252.48324.9503
H113.38642.14583.86942.15001.08103.39384.85362.84454.95032.48324.2825
H123.38642.14582.15003.86943.39381.08104.85362.84452.48324.95034.2825

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 119.599 C1 C3 H9 120.054
C1 C4 C5 119.599 C1 C4 H10 120.054
C2 C5 C4 119.599 C2 C5 H11 120.054
C2 C6 C3 119.599 C2 C6 H12 120.054
C3 C1 C4 120.802 C3 C1 Cl7 119.599
C3 C6 H12 120.347 C4 C1 Cl7 119.599
C4 C5 H11 120.347 C5 C2 C6 120.802
C5 C2 Cl8 119.599 C5 C4 H10 120.347
C6 C2 Cl8 119.599 C6 C3 H9 120.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability