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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-1143.462624
Energy at 298.15K-1143.466754
HF Energy-1142.841775
Nuclear repulsion energy442.500779
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 MP2/3-21G
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 3247 3099 3.37      
2 A1 3241 3094 0.74      
3 A1 3211 3065 2.19      
4 A1 1587 1515 31.01      
5 A1 1453 1387 8.88      
6 A1 1148 1096 12.77      
7 A1 1097 1047 18.83      
8 A1 1031 984 2.54      
9 A1 688 656 1.40      
10 A1 378 360 3.50      
11 A1 180 172 0.82      
12 A2 910 869 0.00      
13 A2 546 521 0.00      
14 A2 208 198 0.00      
15 B1 945 902 0.01      
16 B1 893 852 18.58      
17 B1 796 759 61.98      
18 B1 685 654 18.58      
19 B1 453 433 5.85      
20 B1 168 160 0.04      
21 B2 3235 3088 0.03      
22 B2 1580 1508 81.51      
23 B2 1514 1445 36.22      
24 B2 1365 1303 1.59      
25 B2 1321 1261 0.06      
26 B2 1244 1187 1.04      
27 B2 1114 1063 18.14      
28 B2 767 733 63.63      
29 B2 422 403 6.28      
30 B2 342 327 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 17883.5 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 17069.8 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 MP2/3-21G
ABC
0.09049 0.02708 0.02084

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 2.112
C2 0.000 1.222 1.415
C3 0.000 -1.222 1.415
C4 0.000 1.195 0.019
C5 0.000 -1.195 0.019
C6 0.000 0.000 -0.704
Cl7 0.000 2.786 -0.910
Cl8 0.000 -2.786 -0.910
H9 0.000 0.000 3.198
H10 0.000 2.169 1.943
H11 0.000 -2.169 1.943
H12 0.000 0.000 -1.788

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.40681.40682.41082.41082.81614.11084.11081.08602.17592.17593.8999
C21.40682.44351.39652.79142.44582.80254.63362.16171.08463.43193.4277
C31.40682.44352.79141.39652.44584.63362.80252.16173.43191.08463.4277
C42.41081.39652.79142.39061.39671.84224.08843.39692.15643.87582.1660
C52.41082.79141.39652.39061.39674.08841.84223.39693.87582.15642.1660
C62.81612.44582.44581.39671.39672.79382.79383.90213.42193.42191.0838
Cl74.11082.80254.63361.84224.08842.79385.57234.96422.91885.71802.9210
Cl84.11084.63362.80254.08841.84222.79385.57234.96425.71802.91882.9210
H91.08602.16172.16173.39693.39693.90214.96424.96422.50652.50654.9859
H102.17591.08463.43192.15643.87583.42192.91885.71802.50654.33864.3151
H112.17593.43191.08463.87582.15643.42195.71802.91882.50654.33864.3151
H123.89993.42773.42772.16602.16601.08382.92102.92104.98594.31514.3151

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 118.631 C1 C2 H10 121.173
C1 C3 C5 118.631 C1 C3 H11 121.173
C2 C1 C3 120.567 C2 C1 H9 119.716
C2 C4 C6 122.237 C2 C4 Cl7 119.198
C3 C1 H9 119.716 C3 C5 C6 122.237
C3 C5 Cl8 119.198 C4 C2 H10 120.196
C4 C6 C5 117.696 C4 C6 H12 121.152
C5 C3 H11 120.196 C5 C6 H12 121.152
C6 C4 Cl7 118.565 C6 C5 Cl8 118.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability