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All results from a given calculation for C6H4Cl2 (1,2-dichlorobenzene)

using model chemistry: MP2=FULL/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 MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-1149.873292
Energy at 298.15K-1149.877580
HF Energy-1148.526480
Nuclear repulsion energy472.122092
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=FULL/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 3276 3079 2.31      
2 A1 3261 3065 1.74      
3 A1 1622 1525 3.77      
4 A1 1499 1409 55.72      
5 A1 1469 1381 10.31      
6 A1 1194 1123 8.30      
7 A1 1183 1112 30.24      
8 A1 1065 1001 5.26      
9 A1 672 631 13.56      
10 A1 492 463 3.95      
11 A1 205 193 0.01      
12 A2 971 913 0.00      
13 A2 879 826 0.00      
14 A2 718 675 0.00      
15 A2 528 496 0.00      
16 A2 141 133 0.00      
17 B1 942 885 1.34      
18 B1 777 731 52.43      
19 B1 453 425 3.21      
20 B1 239 224 0.59      
21 B2 3270 3073 0.15      
22 B2 3250 3054 0.70      
23 B2 1629 1531 5.75      
24 B2 1461 1373 19.46      
25 B2 1279 1202 3.07      
26 B2 1163 1093 2.43      
27 B2 1047 984 33.56      
28 B2 764 718 13.20      
29 B2 438 412 0.24      
30 B2 342 322 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18113.3 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 17024.7 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 MP2=FULL/6-31G(2df,p)
ABC
0.06478 0.04815 0.02762

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.697 -0.033
C2 0.000 -0.697 -0.033
C3 0.000 1.389 1.173
C4 0.000 -1.389 1.173
C5 0.000 0.695 2.374
C6 0.000 -0.695 2.374
Cl7 0.000 1.583 -1.503
Cl8 0.000 -1.583 -1.503
H9 0.000 2.470 1.153
H10 0.000 -2.470 1.153
H11 0.000 1.243 3.307
H12 0.000 -1.243 3.307

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 Cl7 Cl8 H9 H10 H11 H12
C11.39491.39102.41032.40802.78161.71542.71272.13283.38233.38483.8632
C21.39492.41031.39102.78162.40802.71271.71543.38232.13283.86323.3848
C31.39102.41032.77791.38712.40542.68313.99921.08133.85902.13863.3882
C42.41031.39102.77792.40541.38713.99922.68313.85901.08133.38822.1386
C52.40802.78161.38712.40541.39023.97754.49692.15483.39271.08162.1508
C62.78162.40802.40541.38711.39024.49693.97753.39272.15482.15081.0816
Cl71.71542.71272.68313.99923.97754.49693.16592.79964.84534.82175.5785
Cl82.71271.71543.99922.68314.49693.97753.16594.84532.79965.57854.8217
H92.13283.38231.08133.85902.15483.39272.79964.84534.94002.47924.2928
H103.38232.13283.85901.08133.39272.15484.84532.79964.94004.29282.4792
H113.38483.86322.13863.38821.08162.15084.82175.57852.47924.29282.4862
H123.86323.38483.38822.13862.15081.08165.57854.82174.29282.47922.4862

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 119.811 C1 C2 Cl8 121.077
C1 C3 C5 120.174 C1 C3 H9 118.713
C2 C1 C3 119.811 C2 C1 Cl7 121.077
C2 C4 C6 120.174 C2 C4 H10 118.713
C3 C1 Cl7 119.112 C3 C5 C6 120.015
C3 C5 H11 119.545 C4 C2 Cl8 119.112
C4 C6 C5 120.015 C4 C6 H12 119.545
C5 C3 H9 121.112 C5 C6 H12 120.441
C6 C4 H10 121.112 C6 C5 H11 120.441
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability