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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Photoreversible Hydrogen Migration System in a Solid Argon Matrix Formed by the Reaction of Methyl Fluoride with Laser-Ablated Titanium Atoms
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Photoreversible Hydrogen Migration System in a Solid Argon Matrix Formed by the Reaction of Methyl Fluoride with Laser-Ablated Titanium Atoms

机译：甲基氟与激光烧蚀钛原子反应形成的固态氩基质中的光可逆氢迁移系统

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摘要

The photoreversible system of titanium methylidene and methyltitanium fluoride complexes has been formed by the reaction of methyl fluoride and laser-ablated Ti atoms and isolated in a solid argon matrix.There are two major groups of absorptions based on broad-band irradiation and annealing behavior.The increase of group I is accompanied by the decrease of group II on photolysis with UV light (240 nm < lambda < 380 nm) and the reverse with visible light (A > 530 nm).The methylidene CH2=TiHF and methyltitanium fluoride CH_3- TiF are responsible for these absorptions,and the photochemical interconversion occurs via a-H migration between carbon and titanium atoms.The methylidene complex appears to be stabilized by an agostic hydrogen interaction.Absorptions for the higher coordinated (CH_3)_2TiF_2 complex are observed to increase on UV irradiation and on annealing where CH_3TiF spontaneously adds CH_3F.
机译：亚甲基钛和甲基钛氟化物配合物的光可逆体系是由氟化甲基和激光烧蚀的Ti原子反应形成的，并被隔离在固体氩气基质中。基于宽带辐射和退火行为，吸收主要分为两类。在紫外光（240 nm <λ<380 nm）的光解作用下，I组的增加伴随着II组的减少，而在可见光（A> 530 nm）的作用下，II组的减少;亚甲基CH2 = TiHF和甲基氟化钛CH_3- TiF负责这些吸收，并且通过碳原子与钛原子之间的aH迁移发生光化学互变。亚甲基配合物似乎被有害的氢相互作用稳定。观察到较高配位的（CH_3）_2TiF_2配合物的吸收在UV下增加CH_3TiF自发添加CH_3F的退火和退火。

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