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

using model chemistry: QCISD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-1149.599177
Energy at 298.15K-1149.603312
HF Energy-1148.503088
Nuclear repulsion energy468.272847
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 QCISD/6-31G**
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 3284 3092 7.45      
2 A1 3268 3077 7.30      
3 A1 1666 1569 3.56      
4 A1 1540 1449 53.59      
5 A1 1291 1216 1.07      
6 A1 1206 1135 3.45      
7 A1 1188 1118 32.20      
8 A1 1081 1018 5.38      
9 A1 681 641 13.49      
10 A1 491 462 5.20      
11 A1 206 194 0.00      
12 A2 937 882 0.00      
13 A2 858 807 0.00      
14 A2 558 526 0.00      
15 A2 500 471 0.00      
16 A2 138 130 0.00      
17 B1 930 876 1.25      
18 B1 769 724 57.50      
19 B1 439 414 3.44      
20 B1 236 222 0.67      
21 B2 3279 3087 6.33      
22 B2 3256 3065 1.15      
23 B2 1681 1583 6.47      
24 B2 1502 1414 17.10      
25 B2 1310 1233 3.31      
26 B2 1181 1112 3.03      
27 B2 1062 1000 33.85      
28 B2 765 720 13.58      
29 B2 437 411 0.38      
30 B2 343 323 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 18040.9 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 16983.7 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 QCISD/6-31G**
ABC
0.06319 0.04754 0.02713

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.700 -0.032
C2 0.000 -0.700 -0.032
C3 0.000 1.393 1.182
C4 0.000 -1.393 1.182
C5 0.000 0.698 2.389
C6 0.000 -0.698 2.389
Cl7 0.000 1.610 -1.513
Cl8 0.000 -1.610 -1.513
H9 0.000 2.474 1.165
H10 0.000 -2.474 1.165
H11 0.000 1.246 3.322
H12 0.000 -1.246 3.322

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39951.39792.41952.42082.79541.73842.74372.14073.39243.39783.8773
C21.39952.41951.39792.79542.42082.74371.73843.39242.14073.87733.3978
C31.39792.41952.78661.39292.41492.70354.03501.08123.86772.14483.3981
C42.41951.39792.78662.41491.39294.03502.70353.86771.08123.39812.1448
C52.42082.79541.39292.41491.39654.00704.53342.15683.40041.08192.1568
C62.79542.42082.41491.39291.39654.53344.00703.40042.15682.15681.0819
Cl71.73842.74372.70354.03504.00704.53343.21982.81444.88414.84825.6153
Cl82.74371.73844.03502.70354.53344.00703.21984.88412.81445.61534.8482
H92.14073.39241.08123.86772.15683.40042.81444.88414.94872.48144.3005
H103.39242.14073.86771.08123.40042.15684.88412.81444.94874.30052.4814
H113.39783.87732.14483.39811.08192.15684.84825.61532.48144.30052.4929
H123.87733.39783.39812.14482.15681.08195.61534.84824.30052.48142.4929

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 119.747 C1 C2 Cl8 121.571
C1 C3 C5 120.319 C1 C3 H9 118.876
C2 C1 C3 119.747 C2 C1 Cl7 121.571
C2 C4 C6 120.319 C2 C4 H10 118.876
C3 C1 Cl7 118.683 C3 C5 C6 119.935
C3 C5 H11 119.618 C4 C2 Cl8 118.683
C4 C6 C5 119.935 C4 C6 H12 119.618
C5 C3 H9 120.805 C5 C6 H12 120.447
C6 C4 H10 120.805 C6 C5 H11 120.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability