For Cl 2 , Br 2 , and I 2 molecules, there is an increasing trend of binding energies along these three molecules for parallel configurations (A–F) as shown in Fig. 1(b) .
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For Cl 2 , Br 2 , and I 2 molecules, there is an increasing trend of binding energies along these three molecules for parallel configurations (A–F) as shown in Fig. 1(b) .