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

using model chemistry: CCSD(T)=FULL/TZVP

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(T)=FULL/TZVP
 hartrees
Energy at 0K-1149.963675
Energy at 298.15K 
HF Energy-1148.612748
Nuclear repulsion energy447.385049
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(T)=FULL/TZVP
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 3230 3088        
2 Ag 1624 1553        
3 Ag 1203 1150        
4 Ag 1112 1063        
5 Ag 756 723        
6 Ag 328 314        
7 Au 685 655        
8 Au 98 94        
9 B1g 738 706        
10 B1u 3213 3071        
11 B1u 1516 1449        
12 B1u 1115 1066        
13 B1u 1008 963        
14 B1u 548 524        
15 B2g 759 726        
16 B2g 233 222        
17 B2g 1427i 1364i        
18 B2u 3227 3085        
19 B2u 1421 1358        
20 B2u 1285 1228        
21 B2u 1125 1076        
22 B2u 216 206        
23 B3g 3214 3073        
24 B3g 1613 1542        
25 B3g 1322 1264        
26 B3g 633 605        
27 B3g 348 333        
28 B3u 676 646        
29 B3u 274 262        
30 B3u 157 150        

Unscaled Zero Point Vibrational Energy (zpe) 16124.2 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 15414.7 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(T)=FULL/TZVP
ABC
0.18897 0.02203 0.01973

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.385
C2 0.000 0.000 -1.385
C3 0.000 1.213 0.698
C4 0.000 -1.213 0.698
C5 0.000 -1.213 -0.698
C6 0.000 1.213 -0.698
Cl7 0.000 0.000 3.140
Cl8 0.000 0.000 -3.140
H9 0.000 2.147 1.245
H10 0.000 -2.147 1.245
H11 0.000 -2.147 -1.245
H12 0.000 2.147 -1.245

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.76981.39401.39402.41032.41031.75524.52492.15192.15193.39523.3952
C22.76982.41032.41031.39401.39404.52491.75523.39523.39522.15192.1519
C31.39402.41032.42592.79881.39592.72684.02511.08283.40453.88162.1559
C41.39402.41032.42591.39592.79882.72684.02513.40451.08282.15593.8816
C52.41031.39402.79881.39592.42594.02512.72683.88162.15591.08283.4045
C62.41031.39401.39592.79882.42594.02512.72682.15593.88163.40451.0828
Cl71.75524.52492.72682.72684.02514.02516.28012.86402.86404.88264.8826
Cl84.52491.75524.02514.02512.72682.72686.28014.88264.88262.86402.8640
H92.15193.39521.08283.40453.88162.15592.86404.88264.29474.96432.4900
H102.15193.39523.40451.08282.15593.88162.86404.88264.29472.49004.9643
H113.39522.15193.88162.15591.08283.40454.88262.86404.96432.49004.2947
H123.39522.15192.15593.88163.40451.08284.88262.86402.49004.96434.2947

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 119.525 C1 C3 H9 120.127
C1 C4 C5 119.525 C1 C4 H10 120.127
C2 C5 C4 119.525 C2 C5 H11 120.127
C2 C6 C3 119.525 C2 C6 H12 120.127
C3 C1 C4 120.950 C3 C1 Cl7 119.525
C3 C6 H12 120.348 C4 C1 Cl7 119.525
C4 C5 H11 120.348 C5 C2 C6 120.950
C5 C2 Cl8 119.525 C5 C4 H10 120.348
C6 C2 Cl8 119.525 C6 C3 H9 120.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability