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

using model chemistry: MP3=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 MP3=FULL/TZVP
 hartrees
Energy at 0K-1149.902876
Energy at 298.15K 
HF Energy-1148.613935
Nuclear repulsion energy449.254781
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 MP3=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 3285 3067 0.00      
2 Ag 1672 1562 0.00      
3 Ag 1225 1144 0.00      
4 Ag 1143 1067 0.00      
5 Ag 776 725 0.00      
6 Ag 337 314 0.00      
7 Au 735 687 0.00      
8 Au 247 231 0.00      
9 B1g 778 727 0.00      
10 B1u 3268 3051 1.15      
11 B1u 1552 1450 98.20      
12 B1u 1142 1066 83.26      
13 B1u 1031 962 56.52      
14 B1u 562 525 23.17      
15 B2g 794 742 0.00      
16 B2g 282 263 0.00      
17 B2g 1419i 1325i 0.00      
18 B2u 3283 3065 1.79      
19 B2u 1455 1359 5.13      
20 B2u 1249 1167 0.47      
21 B2u 1145 1069 4.38      
22 B2u 222 207 0.93      
23 B3g 3269 3052 0.00      
24 B3g 1657 1547 0.00      
25 B3g 1347 1258 0.00      
26 B3g 648 605 0.00      
27 B3g 358 334 0.00      
28 B3u 717 669 67.03      
29 B3u 342 319 5.46      
30 B3u 91 85 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 16596.9 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 15496.6 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 MP3=FULL/TZVP
ABC
0.19078 0.02220 0.01989

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/TZVP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.379
C2 0.000 0.000 -1.379
C3 0.000 1.207 0.695
C4 0.000 -1.207 0.695
C5 0.000 -1.207 -0.695
C6 0.000 1.207 -0.695
Cl7 0.000 0.000 3.128
Cl8 0.000 0.000 -3.128
H9 0.000 2.138 1.239
H10 0.000 -2.138 1.239
H11 0.000 -2.138 -1.239
H12 0.000 2.138 -1.239

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.75801.38751.38752.39952.39951.74894.50692.14262.14263.38033.3803
C22.75802.39952.39951.38751.38754.50691.74893.38033.38032.14262.1426
C31.38752.39952.41412.78541.38952.71614.00871.07853.38913.86402.1465
C41.38752.39952.41411.38952.78542.71614.00873.38911.07852.14653.8640
C52.39951.38752.78541.38952.41414.00872.71613.86402.14651.07853.3891
C62.39951.38751.38952.78542.41414.00872.71612.14653.86403.38911.0785
Cl71.74894.50692.71612.71614.00874.00876.25582.85272.85274.86254.8625
Cl84.50691.74894.00874.00872.71612.71616.25584.86254.86252.85272.8527
H92.14263.38031.07853.38913.86402.14652.85274.86254.27614.94252.4786
H102.14263.38033.38911.07852.14653.86402.85274.86254.27612.47864.9425
H113.38032.14263.86402.14651.07853.38914.86252.85274.94252.47864.2761
H123.38032.14262.14653.86403.38911.07854.86252.85272.47864.94254.2761

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 119.547 C1 C3 H9 120.131
C1 C4 C5 119.547 C1 C4 H10 120.131
C2 C5 C4 119.547 C2 C5 H11 120.131
C2 C6 C3 119.547 C2 C6 H12 120.131
C3 C1 C4 120.907 C3 C1 Cl7 119.547
C3 C6 H12 120.322 C4 C1 Cl7 119.547
C4 C5 H11 120.322 C5 C2 C6 120.907
C5 C2 Cl8 119.547 C5 C4 H10 120.322
C6 C2 Cl8 119.547 C6 C3 H9 120.322
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability