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

using model chemistry: QCISD/3-21G*

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/3-21G*
 hartrees
Energy at 0K-1143.904047
Energy at 298.15K-1143.908216
HF Energy-1143.056262
Nuclear repulsion energy448.190208
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/3-21G*
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 3195 3071 1.67      
2 A1 3191 3067 1.75      
3 A1 3163 3040 3.12      
4 A1 1588 1526 23.12      
5 A1 1445 1389 9.17      
6 A1 1152 1107 16.73      
7 A1 1102 1059 11.57      
8 A1 1028 988 0.45      
9 A1 693 666 1.45      
10 A1 397 382 2.96      
11 A1 197 189 0.57      
12 A2 902 867 0.00      
13 A2 538 517 0.00      
14 A2 207 199 0.00      
15 B1 947 910 0.02      
16 B1 875 841 12.28      
17 B1 785 755 63.29      
18 B1 667 641 12.73      
19 B1 443 426 4.80      
20 B1 170 164 0.08      
21 B2 3184 3060 0.71      
22 B2 1593 1531 58.57      
23 B2 1513 1454 37.07      
24 B2 1358 1305 1.80      
25 B2 1246 1198 0.41      
26 B2 1172 1127 0.07      
27 B2 1110 1067 18.96      
28 B2 794 763 58.74      
29 B2 437 420 4.46      
30 B2 369 354 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 17731.0 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 17041.3 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/3-21G*
ABC
0.09247 0.02804 0.02152

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.097
C2 0.000 1.222 1.400
C3 0.000 -1.222 1.400
C4 0.000 1.205 -0.002
C5 0.000 -1.205 -0.002
C6 0.000 0.000 -0.719
Cl7 0.000 2.729 -0.891
Cl8 0.000 -2.729 -0.891
H9 0.000 0.000 3.186
H10 0.000 2.171 1.933
H11 0.000 -2.171 1.933
H12 0.000 0.000 -1.806

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40661.40662.42052.42052.81604.04724.04721.08902.17702.17703.9035
C21.40662.44381.40252.80312.44632.74294.56772.16381.08803.43423.4317
C31.40662.44382.80311.40252.44634.56772.74292.16383.43421.08803.4317
C42.42051.40252.80312.41041.40231.76464.03383.40832.16233.89112.1699
C52.42052.80311.40252.41041.40234.03381.76463.40833.89112.16232.1699
C62.81602.44632.44631.40231.40232.73482.73483.90503.42683.42681.0875
Cl74.04722.74294.56771.76464.03382.73485.45884.90652.87865.65562.8788
Cl84.04724.56772.74294.03381.76462.73485.45884.90655.65562.87862.8788
H91.08902.16382.16383.40833.40833.90504.90654.90652.50672.50674.9925
H102.17701.08803.43422.16233.89113.42682.87865.65562.50674.34164.3236
H112.17703.43421.08803.89112.16233.42685.65562.87862.50674.34164.3236
H123.90353.43173.43172.16992.16991.08752.87882.87884.99254.32364.3236

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 119.010 C1 C2 H10 121.014
C1 C3 C5 119.010 C1 C3 H11 121.014
C2 C1 C3 120.613 C2 C1 H9 119.694
C2 C4 C6 121.429 C2 C4 Cl7 119.574
C3 C1 H9 119.694 C3 C5 C6 121.429
C3 C5 Cl8 119.574 C4 C2 H10 119.976
C4 C6 C5 118.509 C4 C6 H12 120.745
C5 C3 H11 119.976 C5 C6 H12 120.745
C6 C4 Cl7 118.997 C6 C5 Cl8 118.997
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability