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

using model chemistry: CCSD(T)=FULL/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(T)=FULL/cc-pVDZ
 hartrees
Energy at 0K-1149.728633
Energy at 298.15K-1149.732686
HF Energy-1148.557734
Nuclear repulsion energy444.967348
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/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 3233 3114        
2 Ag 1635 1574        
3 Ag 1180 1136        
4 Ag 1121 1079        
5 Ag 750 722        
6 Ag 328 316        
7 Au 941 906        
8 Au 405 390        
9 B1g 821 791        
10 B1u 3216 3097        
11 B1u 1504 1449        
12 B1u 1114 1073        
13 B1u 1010 973        
14 B1u 552 531        
15 B2g 908 874        
16 B2g 608 586        
17 B2g 293 282        
18 B2u 3231 3112        
19 B2u 1415 1363        
20 B2u 1312 1264        
21 B2u 1106 1066        
22 B2u 218 210        
23 B3g 3217 3099        
24 B3g 1618 1559        
25 B3g 1293 1246        
26 B3g 628 605        
27 B3g 346 333        
28 B3u 810 780        
29 B3u 476 458        
30 B3u 102 98        

Unscaled Zero Point Vibrational Energy (zpe) 17694.6 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 17043.4 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/cc-pVDZ
ABC
0.18570 0.02185 0.01955

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.399
C2 0.000 0.000 -1.399
C3 0.000 1.223 0.704
C4 0.000 -1.223 0.704
C5 0.000 -1.223 -0.704
C6 0.000 1.223 -0.704
Cl7 0.000 0.000 3.151
Cl8 0.000 0.000 -3.151
H9 0.000 2.168 1.257
H10 0.000 -2.168 1.257
H11 0.000 -2.168 -1.257
H12 0.000 2.168 -1.257

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.79741.40701.40702.43242.43241.75234.54972.17252.17253.42843.4284
C22.79742.43242.43241.40701.40704.54971.75233.42843.42842.17252.1725
C31.40702.43242.44672.82261.40752.73604.04421.09483.43613.91742.1767
C41.40702.43242.44671.40752.82262.73604.04423.43611.09482.17673.9174
C52.43241.40702.82261.40752.44674.04422.73603.91742.17671.09483.4361
C62.43241.40701.40752.82262.44674.04422.73602.17673.91743.43611.0948
Cl71.75234.54972.73602.73604.04424.04426.30202.87862.87864.91264.9126
Cl84.54971.75234.04424.04422.73602.73606.30204.91264.91262.87862.8786
H92.17253.42841.09483.43613.91742.17672.87864.91264.33595.01232.5146
H102.17253.42843.43611.09482.17673.91742.87864.91264.33592.51465.0123
H113.42842.17253.91742.17671.09483.43614.91262.87865.01232.51464.3359
H123.42842.17252.17673.91743.43611.09484.91262.87862.51465.01234.3359

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 119.601 C1 C3 H9 120.028
C1 C4 C5 119.601 C1 C4 H10 120.028
C2 C5 C4 119.601 C2 C5 H11 120.028
C2 C6 C3 119.601 C2 C6 H12 120.028
C3 C1 C4 120.799 C3 C1 Cl7 119.601
C3 C6 H12 120.372 C4 C1 Cl7 119.601
C4 C5 H11 120.372 C5 C2 C6 120.799
C5 C2 Cl8 119.601 C5 C4 H10 120.372
C6 C2 Cl8 119.601 C6 C3 H9 120.372
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability