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

using model chemistry: MP2/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-1149.965227
Energy at 298.15K-1149.969420
HF Energy-1148.648593
Nuclear repulsion energy450.030605
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 MP2/cc-pVTZ
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 3248 3084 0.00      
2 Ag 1622 1540 0.00      
3 Ag 1192 1131 0.00      
4 Ag 1127 1070 0.00      
5 Ag 761 722 0.00      
6 Ag 332 315 0.00      
7 Au 958 909 0.00      
8 Au 415 394 0.00      
9 B1g 828 787 0.00      
10 B1u 3232 3069 0.32      
11 B1u 1504 1428 97.69      
12 B1u 1122 1065 96.22      
13 B1u 1027 975 40.87      
14 B1u 564 536 23.44      
15 B2g 936 889 0.00      
16 B2g 687 652 0.00      
17 B2g 298 283 0.00      
18 B2u 3247 3083 0.16      
19 B2u 1469 1395 0.58      
20 B2u 1400 1330 5.33      
21 B2u 1117 1060 6.47      
22 B2u 220 209 0.81      
23 B3g 3234 3071 0.00      
24 B3g 1617 1535 0.00      
25 B3g 1307 1241 0.00      
26 B3g 630 598 0.00      
27 B3g 350 332 0.00      
28 B3u 830 788 53.97      
29 B3u 493 468 17.04      
30 B3u 102 97 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 17933.0 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 17027.4 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 MP2/cc-pVTZ
ABC
0.18965 0.02236 0.02000

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.382
C2 0.000 0.000 -1.382
C3 0.000 1.211 0.696
C4 0.000 -1.211 0.696
C5 0.000 -1.211 -0.696
C6 0.000 1.211 -0.696
Cl7 0.000 0.000 3.115
Cl8 0.000 0.000 -3.115
H9 0.000 2.142 1.244
H10 0.000 -2.142 1.244
H11 0.000 -2.142 -1.244
H12 0.000 2.142 -1.244

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.76421.39201.39202.40512.40511.73264.49692.14612.14613.38893.3889
C22.76422.40512.40511.39201.39204.49691.73263.38893.38892.14612.1461
C31.39202.40512.42212.79341.39162.70523.99841.08023.39733.87362.1517
C41.39202.40512.42211.39162.79342.70523.99843.39731.08022.15173.8736
C52.40511.39202.79341.39162.42213.99842.70523.87362.15171.08023.3973
C62.40511.39201.39162.79342.42213.99842.70522.15173.87363.39731.0802
Cl71.73264.49692.70522.70523.99843.99846.22952.84352.84354.85674.8567
Cl84.49691.73263.99843.99842.70522.70526.22954.85674.85672.84352.8435
H92.14613.38891.08023.39733.87362.15172.84354.85674.28344.95382.4884
H102.14613.38893.39731.08022.15173.87362.84354.85674.28342.48844.9538
H113.38892.14613.87362.15171.08023.39734.85672.84354.95382.48844.2834
H123.38892.14612.15173.87363.39731.08024.85672.84352.48844.95384.2834

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 119.541 C1 C3 H9 119.950
C1 C4 C5 119.541 C1 C4 H10 119.950
C2 C5 C4 119.541 C2 C5 H11 119.950
C2 C6 C3 119.541 C2 C6 H12 119.950
C3 C1 C4 120.919 C3 C1 Cl7 119.541
C3 C6 H12 120.510 C4 C1 Cl7 119.541
C4 C5 H11 120.510 C5 C2 C6 120.919
C5 C2 Cl8 119.541 C5 C4 H10 120.510
C6 C2 Cl8 119.541 C6 C3 H9 120.510
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability