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

using model chemistry: MP2=FULL/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=FULL/cc-pVTZ
 hartrees
Energy at 0K-1150.127027
Energy at 298.15K-1150.131348
HF Energy-1148.649411
Nuclear repulsion energy451.803243
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=FULL/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 3269 3104 0.00      
2 Ag 1639 1556 0.00      
3 Ag 1206 1145 0.00      
4 Ag 1139 1082 0.00      
5 Ag 769 730 0.00      
6 Ag 335 318 0.00      
7 Au 996 946 0.00      
8 Au 427 405 0.00      
9 B1g 853 810 0.00      
10 B1u 3248 3083 0.31      
11 B1u 1518 1441 100.43      
12 B1u 1132 1074 98.72      
13 B1u 1041 988 34.92      
14 B1u 570 541 23.29      
15 B2g 986 936 0.00      
16 B2g 734 697 0.00      
17 B2g 307 292 0.00      
18 B2u 3267 3102 0.12      
19 B2u 1486 1411 0.63      
20 B2u 1410 1339 5.57      
21 B2u 1131 1073 6.56      
22 B2u 222 211 0.78      
23 B3g 3250 3085 0.00      
24 B3g 1627 1544 0.00      
25 B3g 1313 1246 0.00      
26 B3g 636 604 0.00      
27 B3g 353 335 0.00      
28 B3u 869 825 52.02      
29 B3u 509 483 18.69      
30 B3u 104 99 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 18172.6 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 17253.1 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=FULL/cc-pVTZ
ABC
0.19156 0.02252 0.02015

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

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 1.205 0.693
C4 0.000 -1.205 0.693
C5 0.000 -1.205 -0.693
C6 0.000 1.205 -0.693
Cl7 0.000 0.000 3.104
Cl8 0.000 0.000 -3.104
H9 0.000 2.131 1.239
H10 0.000 -2.131 1.239
H11 0.000 -2.131 -1.239
H12 0.000 2.131 -1.239

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C12.75331.38561.38562.39462.39461.72754.48082.13532.13533.37373.3737
C22.75332.39462.39461.38561.38564.48081.72753.37373.37372.13532.1353
C31.38562.39462.41002.77981.38532.69583.98351.07493.38033.85472.1420
C41.38562.39462.41001.38532.77982.69583.98353.38031.07492.14203.8547
C52.39461.38562.77981.38532.41003.98352.69583.85472.14201.07493.3803
C62.39461.38561.38532.77982.41003.98352.69582.14203.85473.38031.0749
Cl71.72754.48082.69582.69583.98353.98356.20832.83192.83194.83764.8376
Cl84.48081.72753.98353.98352.69582.69586.20834.83764.83762.83192.8319
H92.13533.37371.07493.38033.85472.14202.83194.83764.26174.92972.4778
H102.13533.37373.38031.07492.14203.85472.83194.83764.26172.47784.9297
H113.37372.13533.85472.14201.07493.38034.83762.83194.92972.47784.2617
H123.37372.13532.14203.85473.38031.07494.83762.83192.47784.92974.2617

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 119.579 C1 C3 H9 119.880
C1 C4 C5 119.579 C1 C4 H10 119.880
C2 C5 C4 119.579 C2 C5 H11 119.880
C2 C6 C3 119.579 C2 C6 H12 119.880
C3 C1 C4 120.842 C3 C1 Cl7 119.579
C3 C6 H12 120.542 C4 C1 Cl7 119.579
C4 C5 H11 120.542 C5 C2 C6 120.842
C5 C2 Cl8 119.579 C5 C4 H10 120.542
C6 C2 Cl8 119.579 C6 C3 H9 120.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability