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

using model chemistry: MP2=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-1136.270355
Energy at 298.15K-1136.274199
HF Energy-1135.885041
Nuclear repulsion energy457.811834
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/STO-3G
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 3535 3142 6.35      
2 A1 3521 3130 2.80      
3 A1 1696 1508 0.65      
4 A1 1590 1413 44.53      
5 A1 1278 1136 0.04      
6 A1 1257 1117 26.91      
7 A1 1207 1073 1.14      
8 A1 1102 980 0.03      
9 A1 704 625 7.59      
10 A1 500 444 3.66      
11 A1 188 167 0.37      
12 A2 1069 950 0.00      
13 A2 940 836 0.00      
14 A2 748 665 0.00      
15 A2 534 474 0.00      
16 A2 148 131 0.00      
17 B1 1031 916 1.44      
18 B1 816 725 25.83      
19 B1 462 411 0.18      
20 B1 240 213 0.48      
21 B2 3527 3135 24.32      
22 B2 3515 3124 1.39      
23 B2 1711 1521 4.48      
24 B2 1560 1387 17.85      
25 B2 1350 1200 4.18      
26 B2 1223 1087 12.46      
27 B2 1132 1006 19.05      
28 B2 810 720 7.06      
29 B2 438 389 1.57      
30 B2 335 298 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 19082.5 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 16962.4 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=FULL/STO-3G
ABC
0.06080 0.04518 0.02592

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.713 -0.014
C2 0.000 -0.713 -0.014
C3 0.000 1.422 1.218
C4 0.000 -1.422 1.218
C5 0.000 0.709 2.440
C6 0.000 -0.709 2.440
Cl7 0.000 1.642 -1.557
Cl8 0.000 -1.642 -1.557
H9 0.000 2.523 1.205
H10 0.000 -2.523 1.205
H11 0.000 1.263 3.392
H12 0.000 -1.263 3.392

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.42701.42122.46522.45432.83651.80022.81522.18183.45843.44973.9375
C21.42702.46521.42122.83652.45432.81521.80023.45842.18183.93753.4497
C31.42122.46522.84331.41502.45592.78344.13301.10123.94452.17943.4539
C42.46521.42122.84332.45591.41504.13302.78343.94451.10123.45392.1794
C52.45432.83651.41502.45591.41704.10434.63652.19473.45931.10102.1887
C62.83652.45432.45591.41501.41704.63654.10433.45932.19472.18871.1010
Cl71.80022.81522.78344.13304.10434.63653.28302.89904.99694.96285.7375
Cl82.81521.80024.13302.78344.63654.10433.28304.99692.89905.73754.9628
H92.18183.45841.10123.94452.19473.45932.89904.99695.04562.52364.3715
H103.45842.18183.94451.10123.45932.19474.99692.89905.04564.37152.5236
H113.44973.93752.17943.45391.10102.18874.96285.73752.52364.37152.5252
H123.93753.44973.45392.17942.18871.10105.73754.96284.37152.52362.5252

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 119.888 C1 C2 Cl8 121.032
C1 C3 C5 119.847 C1 C3 H9 119.218
C2 C1 C3 119.888 C2 C1 Cl7 121.032
C2 C4 C6 119.847 C2 C4 H10 119.218
C3 C1 Cl7 119.081 C3 C5 C6 120.265
C3 C5 H11 119.520 C4 C2 Cl8 119.081
C4 C6 C5 120.265 C4 C6 H12 119.520
C5 C3 H9 120.934 C5 C6 H12 120.215
C6 C4 H10 120.934 C6 C5 H11 120.215
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability