return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H4Cl2 (1,3-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-1149.602323
Energy at 298.15K-1149.606431
HF Energy-1148.507761
Nuclear repulsion energy451.840656
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 3291 3098 0.23      
2 A1 3287 3094 4.43      
3 A1 3260 3069 5.25      
4 A1 1672 1574 21.37      
5 A1 1481 1395 12.24      
6 A1 1179 1110 18.36      
7 A1 1124 1058 10.70      
8 A1 1019 959 4.78      
9 A1 684 644 1.63      
10 A1 409 385 2.31      
11 A1 200 188 0.47      
12 A2 890 838 0.00      
13 A2 526 495 0.00      
14 A2 205 193 0.00      
15 B1 939 884 0.16      
16 B1 854 804 4.11      
17 B1 774 729 60.51      
18 B1 550 518 0.16      
19 B1 433 407 2.74      
20 B1 170 160 0.02      
21 B2 3281 3089 1.92      
22 B2 1679 1580 64.97      
23 B2 1541 1450 54.23      
24 B2 1347 1268 1.77      
25 B2 1283 1207 0.54      
26 B2 1211 1140 0.55      
27 B2 1139 1072 22.03      
28 B2 815 768 67.62      
29 B2 438 412 2.44      
30 B2 373 351 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 18026.0 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 16969.7 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
0.09397 0.02853 0.02188

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 0.000 2.079
C2 0.000 1.214 1.391
C3 0.000 -1.214 1.391
C4 0.000 1.198 -0.004
C5 0.000 -1.198 -0.004
C6 0.000 0.000 -0.717
Cl7 0.000 2.705 -0.883
Cl8 0.000 -2.705 -0.883
H9 0.000 0.000 3.161
H10 0.000 2.155 1.922
H11 0.000 -2.155 1.922
H12 0.000 0.000 -1.798

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39561.39562.40302.40302.79654.01124.01121.08212.16102.16103.8766
C21.39562.42791.39462.78622.43252.71884.53072.14681.08083.41083.4114
C31.39562.42792.78621.39462.43254.53072.71882.14683.41081.08083.4114
C42.40301.39462.78622.39631.39451.74454.00103.38432.15033.86692.1570
C52.40302.78621.39462.39631.39454.00101.74453.38433.86692.15032.1570
C62.79652.43252.43251.39451.39452.71022.71023.87863.40733.40731.0801
Cl74.01122.71884.53071.74454.00102.71025.41034.86532.85775.61142.8556
Cl84.01124.53072.71884.00101.74452.71025.41034.86535.61142.85772.8556
H91.08212.14682.14683.38433.38433.87864.86534.86532.48632.48634.9588
H102.16101.08083.41082.15033.86693.40732.85775.61142.48634.31054.2985
H112.16103.41081.08083.86692.15033.40735.61142.85772.48634.31054.2985
H123.87663.41143.41142.15702.15701.08012.85562.85564.95884.29854.2985

picture of 1,3-dichlorobenzene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 118.912 C1 C2 H10 121.012
C1 C3 C5 118.912 C1 C3 H11 121.012
C2 C1 C3 120.880 C2 C1 H9 119.560
C2 C4 C6 121.422 C2 C4 Cl7 119.600
C3 C1 H9 119.560 C3 C5 C6 121.422
C3 C5 Cl8 119.600 C4 C2 H10 120.076
C4 C6 C5 118.453 C4 C6 H12 120.774
C5 C3 H11 120.076 C5 C6 H12 120.774
C6 C4 Cl7 118.978 C6 C5 Cl8 118.978
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability