Quantum chemical study of chlorine-dissociation of oxalyl chloride (ClCO)2→2Cl + 2CO

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The multi-bond dissociation dynamics of oxalyl chloride ((ClCO)2) is investigated by ab initio calculation. Dissociation of C-Cl bond of oxalyl chloride in the ground state is of barrierless. After the absorption of a photon, (ClCO)2 is excited to the first excited state and one of its C-Cl bonds is broken to yield Cl and ClCOCO* free radicals. In addition, ClCOCO* with high energy is prone to release energy (Q), and to turn into ClCOCO in the ground state. The energy (Q) is ade-quate for ClCOCO to break down into ClCO and CO, and even for ClCO into Cl and CO. The result is consistent with the experimental data that Kong reported. The multi-bond dissociation dynamics of oxalyl chloride ((ClCO) 2) was investigated by ab initio calculation. Dissociation of C-Cl bond of oxalyl chloride in the ground state is of barrierless. After the absorption of a photon, (ClCO) 2 is excited to the first excited state and one of its C-Cl bonds is broken to yield Cl and ClCOCO * free radicals. In addition, ClCOCO * with high energy is prone to release energy (Q), and turn into ClOCO in the The state of energy (Q) is ade-quate for ClCOCO to break down into ClCO and CO, and even for ClCO into Cl and CO. The result is consistent with the experimental data that Kong reported.
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