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 (1,2-dichlorobenzene)

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-1149.325322
Energy at 298.15K-1149.329775
HF Energy-1148.496799
Nuclear repulsion energy471.400137
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 CID/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 3358 3102 5.41      
2 A1 3342 3087 6.67      
3 A1 1739 1606 3.71      
4 A1 1600 1478 67.16      
5 A1 1324 1223 1.00      
6 A1 1245 1150 13.84      
7 A1 1232 1138 21.62      
8 A1 1125 1039 6.20      
9 A1 710 656 15.84      
10 A1 512 473 6.05      
11 A1 216 199 0.00      
12 A2 1012 935 0.00      
13 A2 918 848 0.00      
14 A2 681 629 0.00      
15 A2 542 500 0.00      
16 A2 146 135 0.00      
17 B1 1002 926 2.04      
18 B1 816 753 68.96      
19 B1 472 436 4.51      
20 B1 251 232 0.77      
21 B2 3353 3098 3.72      
22 B2 3329 3075 1.22      
23 B2 1754 1620 6.21      
24 B2 1559 1440 22.76      
25 B2 1361 1257 3.07      
26 B2 1226 1133 2.93      
27 B2 1107 1022 37.46      
28 B2 796 736 15.62      
29 B2 456 421 0.42      
30 B2 359 332 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 18770.2 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 17338.0 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 CID/6-31G*
ABC
0.06397 0.04822 0.02749

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.694 -0.031
C2 0.000 -0.694 -0.031
C3 0.000 1.383 1.173
C4 0.000 -1.383 1.173
C5 0.000 0.693 2.371
C6 0.000 -0.693 2.371
Cl7 0.000 1.601 -1.502
Cl8 0.000 -1.601 -1.502
H9 0.000 2.460 1.158
H10 0.000 -2.460 1.158
H11 0.000 1.239 3.301
H12 0.000 -1.239 3.301

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.38851.38712.40072.40222.77401.72862.72662.12873.37093.37633.8524
C21.38852.40071.38712.77402.40222.72661.72863.37092.12873.85243.3763
C31.38712.40072.76511.38232.39642.68484.00781.07763.84262.13253.3766
C42.40071.38712.76512.39641.38234.00782.68483.84261.07763.37662.1325
C52.40222.77401.38232.39641.38583.97894.50212.14363.37841.07852.1443
C62.77402.40222.39641.38231.38584.50213.97893.37842.14362.14431.0785
Cl71.72862.72662.68484.00783.97894.50213.20212.79574.85504.81725.5806
Cl82.72661.72864.00782.68484.50213.97893.20214.85502.79575.58064.8172
H92.12873.37091.07763.84262.14363.37842.79574.85504.92012.46644.2754
H103.37092.12873.84261.07763.37842.14364.85502.79574.92014.27542.4664
H113.37633.85242.13253.37661.07852.14434.81725.58062.46644.27542.4788
H123.85243.37633.37662.13252.14431.07855.58064.81724.27542.46642.4788

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 119.749 C1 C2 Cl8 121.641
C1 C3 C5 120.322 C1 C3 H9 118.930
C2 C1 C3 119.749 C2 C1 Cl7 121.641
C2 C4 C6 120.322 C2 C4 H10 118.930
C3 C1 Cl7 118.609 C3 C5 C6 119.928
C3 C5 H11 119.627 C4 C2 Cl8 118.609
C4 C6 C5 119.928 C4 C6 H12 119.627
C5 C3 H9 120.748 C5 C6 H12 120.444
C6 C4 H10 120.748 C6 C5 H11 120.444
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability