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All results from a given calculation for C6H4Cl2 (1,2-dichlorobenzene)

using model chemistry: MP2=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-1150.177956
Energy at 298.15K-1150.182253
HF Energy-1148.646735
Nuclear repulsion energy472.743223
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/aug-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 A1 3246 3088 3.02      
2 A1 3224 3067 2.86      
3 A1 1620 1541 4.29      
4 A1 1499 1426 45.49      
5 A1 1466 1395 15.05      
6 A1 1182 1124 30.00      
7 A1 1168 1111 9.02      
8 A1 1066 1014 6.46      
9 A1 673 640 12.64      
10 A1 491 467 4.10      
11 A1 205 195 0.02      
12 A2 989 941 0.00      
13 A2 890 847 0.00      
14 A2 654 622 0.00      
15 A2 507 482 0.00      
16 A2 139 132 0.00      
17 B1 995 947 1.28      
18 B1 786 748 62.10      
19 B1 458 436 4.91      
20 B1 242 231 1.14      
21 B2 3235 3078 0.72      
22 B2 3201 3046 0.84      
23 B2 1628 1548 7.88      
24 B2 1460 1389 15.82      
25 B2 1274 1212 3.19      
26 B2 1155 1099 1.20      
27 B2 1056 1005 31.61      
28 B2 761 724 13.11      
29 B2 440 419 0.22      
30 B2 342 325 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 18026.8 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 17150.7 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/aug-cc-pVTZ
ABC
0.06511 0.04818 0.02769

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.696 -0.030
C2 0.000 -0.696 -0.030
C3 0.000 1.385 1.173
C4 0.000 -1.385 1.173
C5 0.000 0.694 2.373
C6 0.000 -0.694 2.373
Cl7 0.000 1.579 -1.503
Cl8 0.000 -1.579 -1.503
H9 0.000 2.463 1.154
H10 0.000 -2.463 1.154
H11 0.000 1.239 3.303
H12 0.000 -1.239 3.303

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39151.38732.40422.40342.77611.71702.70972.12703.37313.37723.8542
C21.39152.40421.38732.77612.40342.70971.71703.37312.12703.85423.3772
C31.38732.40422.77071.38472.40042.68323.99361.07743.84802.13443.3799
C42.40421.38732.77072.40041.38473.99362.68323.84801.07743.37992.1344
C52.40342.77611.38472.40041.38753.97564.49302.14833.38361.07802.1452
C62.77612.40342.40041.38471.38754.49303.97563.38362.14832.14521.0780
Cl71.71702.70972.68323.99363.97564.49303.15782.79984.83654.81765.5711
Cl82.70971.71703.99362.68324.49303.97563.15784.83652.79985.57114.8176
H92.12703.37311.07743.84802.14833.38362.79984.83654.92522.47264.2806
H103.37312.12703.84801.07743.38362.14834.83652.79984.92524.28062.4726
H113.37723.85422.13443.37991.07802.14524.81765.57112.47264.28062.4790
H123.85423.37723.37992.13442.14521.07805.57114.81764.28062.47262.4790

picture of 1,2-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 119.808 C1 C2 Cl8 120.953
C1 C3 C5 120.228 C1 C3 H9 118.769
C2 C1 C3 119.808 C2 C1 Cl7 120.953
C2 C4 C6 120.228 C2 C4 H10 118.769
C3 C1 Cl7 119.239 C3 C5 C6 119.963
C3 C5 H11 119.626 C4 C2 Cl8 119.239
C4 C6 C5 119.963 C4 C6 H12 119.626
C5 C3 H9 121.002 C5 C6 H12 120.411
C6 C4 H10 121.002 C6 C5 H11 120.411
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability