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

using model chemistry: CCSD=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=FULL/TZVP
 hartrees
Energy at 0K-1149.909529
Energy at 298.15K 
HF Energy-1148.613686
Nuclear repulsion energy448.762255
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=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 3255 3084 0.00      
2 Ag 1661 1574 0.00      
3 Ag 1220 1156 0.00      
4 Ag 1135 1076 0.00      
5 Ag 771 730 0.00      
6 Ag 334 317 0.00      
7 Au 754 714 0.00      
8 Au 280 266 0.00      
9 B1g 782 741 0.00      
10 B1u 3239 3069 1.46      
11 B1u 1543 1462 94.03      
12 B1u 1136 1077 83.18      
13 B1u 1027 973 53.23      
14 B1u 558 529 22.36      
15 B2g 797 755 0.00      
16 B2g 281 266 0.00      
17 B2g 1339i 1269i 0.00      
18 B2u 3253 3082 2.74      
19 B2u 1446 1370 5.45      
20 B2u 1252 1186 0.59      
21 B2u 1141 1081 3.92      
22 B2u 221 209 0.96      
23 B3g 3240 3070 0.00      
24 B3g 1649 1562 0.00      
25 B3g 1341 1271 0.00      
26 B3g 644 611 0.00      
27 B3g 356 337 0.00      
28 B3u 722 684 64.33      
29 B3u 356 338 6.23      
30 B3u 92 87 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 16572.4 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 15702.3 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=FULL/TZVP
ABC
0.19041 0.02215 0.01984

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.381
C2 0.000 0.000 -1.381
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 3.131
Cl8 0.000 0.000 -3.131
H9 0.000 2.141 1.241
H10 0.000 -2.141 1.241
H11 0.000 -2.141 -1.241
H12 0.000 2.141 -1.241

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.76111.38881.38882.40192.40191.75094.51202.14572.14573.38453.3845
C22.76112.40192.40191.38881.38884.51201.75093.38453.38452.14572.1457
C31.38882.40192.41612.78781.39082.71914.01301.08063.39323.86852.1491
C41.38882.40192.41611.39082.78782.71914.01303.39321.08062.14913.8685
C52.40191.38882.78781.39082.41614.01302.71913.86852.14911.08063.3932
C62.40191.38881.39082.78782.41614.01302.71912.14913.86853.39321.0806
Cl71.75094.51202.71912.71914.01304.01306.26292.85652.85654.86824.8682
Cl84.51201.75094.01304.01302.71912.71916.26294.86824.86822.85652.8565
H92.14573.38451.08063.39323.86852.14912.85654.86824.28224.94912.4812
H102.14573.38453.39321.08062.14913.86852.85654.86824.28222.48124.9491
H113.38452.14573.86852.14911.08063.39324.86822.85654.94912.48124.2822
H123.38452.14572.14913.86853.39321.08064.86822.85652.48124.94914.2822

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 119.559 C1 C3 H9 120.142
C1 C4 C5 119.559 C1 C4 H10 120.142
C2 C5 C4 119.559 C2 C5 H11 120.142
C2 C6 C3 119.559 C2 C6 H12 120.142
C3 C1 C4 120.882 C3 C1 Cl7 119.559
C3 C6 H12 120.299 C4 C1 Cl7 119.559
C4 C5 H11 120.299 C5 C2 C6 120.882
C5 C2 Cl8 119.559 C5 C4 H10 120.299
C6 C2 Cl8 119.559 C6 C3 H9 120.299
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability