| 烷烃条件下CF2ClBr的紫外光解离机理研究 |
| 摘要点击 810 全文点击 1535 投稿时间：1997-11-15 |
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| 中文关键词 CF2ClBr C6H12 253.7nm紫外光 光解离 大气化学 |
| 英文关键词 CF2ClBr C6H12 253.7nm UV light photo-dissociation atmospheric chemistry |
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| 中文摘要 |
| 以气相色谱、红外光谱为主要分析手段,对气态CF2ClBr在CF2ClBr-C6H12体系中的紫外光解离进行了研究。结果表明,在253.7nm紫外光照射下,该体系的主要光解产物为HCF2Cl、HBr以及C6H12的聚合物。体系中CF2ClBr的解离近似为表观一级反应,解离反应的速率常数为2.877×10-6s-1,表观量子产率约为0.1.基于此,对该光解反应的机理做了分析。 |
| 英文摘要 |
| The paper studied the photo-dissociation of gas state CF2ClBr in the system of CF2ClBr-C6H12 with Gas Chromatography and FT-IR spectra as the main analysis method.The results showed that the system gives main products as HCF2Cl,HBr and C6H11(C6H10)nC6H11 under the 253.7nm UV light.The dissociation of CF2ClBr in this system is about one order and the corresponding rate constant is 2.877×10-6s-1.The apparent quantum yield of CF2ClBr is about 0.1.Based on these results,the photo dissociation mechanism of this system was analyzed. |
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