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

using model chemistry: CCSD=FULL/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-1149.916526
Energy at 298.15K-1149.920848
HF Energy-1148.531800
Nuclear repulsion energy451.141271
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/6-31G(2df,p)
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 3276 3085 0.00      
2 Ag 1668 1571 0.00      
3 Ag 1220 1149 0.00      
4 Ag 1152 1085 0.00      
5 Ag 773 728 0.00      
6 Ag 338 318 0.00      
7 Au 981 923 0.00      
8 Au 431 406 0.00      
9 B1g 863 813 0.00      
10 B1u 3260 3069 0.70      
11 B1u 1541 1451 101.71      
12 B1u 1147 1080 86.71      
13 B1u 1034 974 44.99      
14 B1u 572 539 22.56      
15 B2g 981 924 0.00      
16 B2g 735 693 0.00      
17 B2g 309 291 0.00      
18 B2u 3275 3083 0.37      
19 B2u 1446 1361 8.11      
20 B2u 1277 1203 0.12      
21 B2u 1141 1074 3.93      
22 B2u 226 213 1.14      
23 B3g 3261 3070 0.00      
24 B3g 1659 1562 0.00      
25 B3g 1333 1255 0.00      
26 B3g 642 604 0.00      
27 B3g 362 341 0.00      
28 B3u 863 813 45.90      
29 B3u 511 481 12.23      
30 B3u 106 100 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 18190.1 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 17127.8 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=FULL/6-31G(2df,p)
ABC
0.19079 0.02247 0.02010

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.377
C2 0.000 0.000 -1.377
C3 0.000 1.207 0.694
C4 0.000 -1.207 0.694
C5 0.000 -1.207 -0.694
C6 0.000 1.207 -0.694
Cl7 0.000 0.000 3.108
Cl8 0.000 0.000 -3.108
H9 0.000 2.138 1.242
H10 0.000 -2.138 1.242
H11 0.000 -2.138 -1.242
H12 0.000 2.138 -1.242

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.75411.38691.38692.39702.39701.73064.48472.14252.14253.38083.3808
C22.75412.39702.39701.38691.38694.48471.73063.38083.38082.14252.1425
C31.38692.39702.41392.78441.38782.69873.98851.08043.38983.86482.1480
C41.38692.39702.41391.38782.78442.69873.98853.38981.08042.14803.8648
C52.39701.38692.78441.38782.41393.98852.69873.86482.14801.08043.3898
C62.39701.38691.38782.78442.41393.98852.69872.14803.86483.38981.0804
Cl71.73064.48472.69872.69873.98853.98856.21522.83792.83794.84654.8465
Cl84.48471.73063.98853.98852.69872.69876.21524.84654.84652.83792.8379
H92.14253.38081.08043.38983.86482.14802.83794.84654.27654.94522.4833
H102.14253.38083.38981.08042.14803.86482.83794.84654.27652.48334.9452
H113.38082.14253.86482.14801.08043.38984.84652.83794.94522.48334.2765
H123.38082.14252.14803.86483.38981.08044.84652.83792.48334.94524.2765

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 119.510 C1 C3 H9 120.028
C1 C4 C5 119.510 C1 C4 H10 120.028
C2 C5 C4 119.510 C2 C5 H11 120.028
C2 C6 C3 119.510 C2 C6 H12 120.028
C3 C1 C4 120.981 C3 C1 Cl7 119.510
C3 C6 H12 120.463 C4 C1 Cl7 119.510
C4 C5 H11 120.463 C5 C2 C6 120.981
C5 C2 Cl8 119.510 C5 C4 H10 120.463
C6 C2 Cl8 119.510 C6 C3 H9 120.463
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability