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

using model chemistry: CCSD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-1149.657087
Energy at 298.15K-1149.661247
HF Energy-1148.558748
Nuclear repulsion energy445.852842
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/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3250 3078 0.00      
2 Ag 1666 1579 0.00      
3 Ag 1195 1132 0.00      
4 Ag 1140 1080 0.00      
5 Ag 763 723 0.00      
6 Ag 333 315 0.00      
7 Au 967 916 0.00      
8 Au 413 391 0.00      
9 B1g 840 796 0.00      
10 B1u 3233 3062 1.58      
11 B1u 1528 1447 95.47      
12 B1u 1132 1072 83.96      
13 B1u 1025 971 40.60      
14 B1u 559 530 23.51      
15 B2g 933 884 0.00      
16 B2g 636 603 0.00      
17 B2g 299 283 0.00      
18 B2u 3248 3077 2.35      
19 B2u 1435 1360 5.87      
20 B2u 1276 1209 0.01      
21 B2u 1121 1062 5.30      
22 B2u 220 208 0.95      
23 B3g 3234 3064 0.00      
24 B3g 1649 1563 0.00      
25 B3g 1311 1242 0.00      
26 B3g 637 604 0.00      
27 B3g 353 334 0.00      
28 B3u 830 787 47.45      
29 B3u 487 461 15.25      
30 B3u 103 98 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 17908.6 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 16964.8 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CCSD/cc-pVDZ
ABC
0.18667 0.02193 0.01962

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.395
C2 0.000 0.000 -1.395
C3 0.000 1.220 0.702
C4 0.000 -1.220 0.702
C5 0.000 -1.220 -0.702
C6 0.000 1.220 -0.702
Cl7 0.000 0.000 3.146
Cl8 0.000 0.000 -3.146
H9 0.000 2.164 1.254
H10 0.000 -2.164 1.254
H11 0.000 -2.164 -1.254
H12 0.000 2.164 -1.254

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.79021.40311.40312.42602.42601.75054.54072.16852.16853.42093.4209
C22.79022.42602.42601.40311.40314.54071.75053.42093.42092.16852.1685
C31.40312.42602.43972.81481.40382.73134.03631.09393.42863.90862.1722
C41.40312.42602.43971.40382.81482.73134.03633.42861.09392.17223.9086
C52.42601.40312.81481.40382.43974.03632.73133.90862.17221.09393.4286
C62.42601.40311.40382.81482.43974.03632.73132.17223.90863.42861.0939
Cl71.75054.54072.73132.73134.03634.03636.29122.87392.87394.90344.9034
Cl84.54071.75054.03634.03632.73132.73136.29124.90344.90342.87392.8739
H92.16853.42091.09393.42863.90862.17222.87394.90344.32795.00252.5089
H102.16853.42093.42861.09392.17223.90862.87394.90344.32792.50895.0025
H113.42092.16853.90862.17221.09393.42864.90342.87395.00252.50894.3279
H123.42092.16852.17223.90863.42861.09394.90342.87392.50895.00254.3279

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 119.608 C1 C3 H9 120.052
C1 C4 C5 119.608 C1 C4 H10 120.052
C2 C5 C4 119.608 C2 C5 H11 120.052
C2 C6 C3 119.608 C2 C6 H12 120.052
C3 C1 C4 120.783 C3 C1 Cl7 119.608
C3 C6 H12 120.339 C4 C1 Cl7 119.608
C4 C5 H11 120.339 C5 C2 C6 120.783
C5 C2 Cl8 119.608 C5 C4 H10 120.339
C6 C2 Cl8 119.608 C6 C3 H9 120.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability