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All results from a given calculation for C6H4Cl2 (1,3-dichlorobenzene)

using model chemistry: QCISD/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-1149.832202
Energy at 298.15K-1149.836459
HF Energy-1148.531038
Nuclear repulsion energy452.975715
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(2df,p)
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 3268 3096 1.27      
2 A1 3263 3091 0.91      
3 A1 3234 3064 3.60      
4 A1 1650 1563 20.60      
5 A1 1464 1387 16.61      
6 A1 1169 1108 18.46      
7 A1 1113 1054 10.00      
8 A1 1013 960 4.65      
9 A1 677 642 1.67      
10 A1 408 386 2.35      
11 A1 199 189 0.52      
12 A2 923 875 0.00      
13 A2 551 522 0.00      
14 A2 208 197 0.00      
15 B1 982 931 0.15      
16 B1 904 857 10.73      
17 B1 809 766 39.24      
18 B1 680 644 7.42      
19 B1 446 422 2.61      
20 B1 171 162 0.00      
21 B2 3258 3086 0.14      
22 B2 1652 1565 61.96      
23 B2 1517 1437 63.36      
24 B2 1325 1256 2.71      
25 B2 1262 1196 0.54      
26 B2 1196 1133 0.48      
27 B2 1126 1067 21.94      
28 B2 810 767 69.83      
29 B2 435 413 2.17      
30 B2 372 352 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 18042.0 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 17093.0 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 QCISD/6-31G(2df,p)
ABC
0.09446 0.02869 0.02201

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.074
C2 0.000 1.212 1.387
C3 0.000 -1.212 1.387
C4 0.000 1.193 -0.004
C5 0.000 -1.193 -0.004
C6 0.000 0.000 -0.719
Cl7 0.000 2.697 -0.880
Cl8 0.000 -2.697 -0.880
H9 0.000 0.000 3.157
H10 0.000 2.155 1.916
H11 0.000 -2.155 1.916
H12 0.000 0.000 -1.801

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39281.39282.39612.39612.79303.99943.99941.08352.16112.16113.8742
C21.39282.42351.39112.77832.42992.70974.51832.14531.08193.40843.4100
C31.39282.42352.77831.39112.42994.51832.70972.14533.40841.08193.4100
C42.39611.39112.77832.38661.39121.74003.98763.37902.14783.86012.1566
C52.39612.77831.39112.38661.39123.98761.74003.37903.86012.14782.1566
C62.79302.42992.42991.39121.39122.70182.70183.87653.40463.40461.0812
Cl73.99942.70974.51831.74003.98762.70185.39414.85472.84775.60012.8500
Cl83.99944.51832.70973.98761.74002.70185.39414.85475.60012.84772.8500
H91.08352.14532.14533.37903.37903.87654.85474.85472.48702.48704.9577
H102.16111.08193.40842.14783.86013.40462.84775.60012.48704.31064.2965
H112.16113.40841.08193.86012.14783.40465.60012.84772.48704.31064.2965
H123.87423.41003.41002.15662.15661.08122.85002.85004.95774.29654.2965

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 118.783 C1 C2 H10 121.164
C1 C3 C5 118.783 C1 C3 H11 121.164
C2 C1 C3 120.913 C2 C1 H9 119.544
C2 C4 C6 121.698 C2 C4 Cl7 119.443
C3 C1 H9 119.544 C3 C5 C6 121.698
C3 C5 Cl8 119.443 C4 C2 H10 120.053
C4 C6 C5 118.126 C4 C6 H12 120.937
C5 C3 H11 120.053 C5 C6 H12 120.937
C6 C4 Cl7 118.859 C6 C5 Cl8 118.859
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability