The thermal rea'/> Matrix Isolation Studies of Novel Intermediates in the Reaction of Trimethylaluminum with Ozone
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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Matrix Isolation Studies of Novel Intermediates in the Reaction of Trimethylaluminum with Ozone
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Matrix Isolation Studies of Novel Intermediates in the Reaction of Trimethylaluminum with Ozone

机译：臭氧三甲基铝反应中新型中间体的基质分离研究

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The thermal reaction of ozone with trimethyl aluminum was explored using twin jet, concentric jet, and merged jet deposition into cryogenic matrixes. Infrared spectroscopy and density functional theory calculations were employed to identify and characterize the products formed in each case. Together, these deposition techniques provide information over the essentially full course of the gas-phase reaction. At short times with twin jet deposition, the primary product is the O atom insertion product (CH3)2AlOCH3. With merged jet deposition and longer gas-phase mixing times, the methyl peroxy radical H3COO· was seen in good yield along with final stable products H2CO, H3COH, and C2H6. Production of Al2O3 and its deposition onto the walls of the reaction tube as a powdery film was noted as well. All of these outcomes were combined to propose a reaction mechanism for this system. Of particular note, the observation of H3COO· provides clear evidence for a free radical component to the overall mechanism.]]>
机译：<！[cdata [ src ='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jpcafh/2017/jpcafh.2017.121.issue-39/acs.jpca.7b07723/ 20170929 / Images / Medium / JP-2017-07723U_0004.GIF“>使用双射流，同心射流将臭氧的热反应与三甲基铝进行探索，并将喷射沉积合并到低温基质中。采用红外光谱和密度泛函理论计算来识别和表征在每种情况下形成的产品。这些沉积技术在一起提供了基本上全过程的信息。在短时间内，初级产物是O原子插入产品（CH 3 ） 2 aloCh 3 。用合并的喷射沉积和较长的气相混合时间，甲基过氧自由基H <亚> 3 COO·以良好的产量以及最终稳定产物H 2 CO，H <亚> 3 COH，C 2 H 6 。还注意到Al 2 O 3 及其作为粉末薄膜的反应管壁上的沉积。组合所有这些结果以提出该系统的反应机制。特别注意，观察H 3 COO·为整个机制提供了清晰的自由基组分的明确证据。]]>

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