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首页> 外文期刊>Chemical Physics Letters >Impact of choice of alkane deposition solvent on 4-fluorobenzoic acid layers adsorbed on silver nanostructures
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Impact of choice of alkane deposition solvent on 4-fluorobenzoic acid layers adsorbed on silver nanostructures

机译:烷烃沉积溶剂的选择对银纳米结构上吸附的4-氟苯甲酸层的影响

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摘要

Surface-enhanced infrared absorption (SEIRA) experiments revealed that the chain length and evaporation rate of alkane deposition solvents altered 4-fluorobenzoic acid (4FBA) adsorption. 4FBA did not dissociate in the multilayer with the fast-evaporating n-pentane deposition solvent. However, with n-hexane and heavier solvents, the evaporation rate was slow enough to allow significant formation of 4-fluorobenzoate ions (4FBI) in the multilayer. Strong intermolecular attractions were present with heavier deposition solvents as evidenced by the incorporation of n-heptane into the 4FBI multilayer. This work will apply to many synthetic, biological, and environmental areas involving the interaction of metal nanostructures with oxygenated or halogenated hydrocarbons.
机译:表面增强红外吸收(SEIRA)实验表明,烷烃沉积溶剂的链长和蒸发速率改变了4-氟苯甲酸(4FBA)的吸附。 4FBA不会与快速蒸发的正戊烷沉积溶剂在多层中解离。但是,使用正己烷和较重的溶剂时,蒸发速度足够慢,以至于无法在多层结构中显着形成4-氟苯甲酸酯离子(4FBI)。正庚烷结合到4FBI多层膜中可以证明,较重的沉积溶剂具有很强的分子间吸引力。这项工作将适用于涉及金属纳米结构与氧化或卤代烃相互作用的许多合成,生物学和环境领域。

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