共查询到19条相似文献,搜索用时 500 毫秒
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简要介绍了杯芳烃的结构、性能及应用;重点介绍了:1新型杯芳烃的合成及应用研究;2新型杯芳烃的自组装及选择性识别作用;3新型杯芳烃对金属离子的选择性识别研究。并对杯芳烃化学的发展进行了展望。 相似文献
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简要介绍了杯芳烃的结构、性能及应用,重点综述了:(1)新型杂原子杯芳烃的合成及超分子自组装;(2)杯芳烃衍生物的合成及对金属离子的识别;(3)杯[4]吡咯席夫碱衍生物的合成。 相似文献
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硫杂杯芳烃是一类以硫原子取代桥联亚甲基的新型杯芳烃,作为新一代超分子砌块,在分子识别、超分子自组装、晶体工程和纳米材料等方面都获得了广泛的应用,己成为当今超分子化学研究的新热点. 相似文献
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简要介绍了杯芳烃的结构特征.综述了杯芳烃超分子化合物的组装与聚集、新型杯芳烃大环分子的合成及结构性能、新型杯芳烃的合成组装及选择性识剐作用等方面的研究新进展。 相似文献
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Katsuhiko Ariga Jonathan P. Hill Hiroshi Endo 《International journal of molecular sciences》2007,8(8):864-883
In biological systems, molecular recognition events occur mostly within interfacial environments such as at membrane surfaces, enzyme reaction sites, or at the interior of the DNA double helix. Investigation of molecular recognition at model interfaces provides great insights into biological phenomena. Molecular recognition at interfaces not only has relevance to biological systems but is also important for modern applications such as high sensitivity sensors. Selective binding of guest molecules in solution to host molecules located at solid surfaces is crucial for electronic or photonic detection of analyte substances. In response to these demands, molecular recognition at interfaces has been investigated extensively during the past two decades using Langmuir monolayers, self-assembled monolayers, and lipid assemblies as recognition media. In this review, advances of molecular recognition at interfaces are briefly summarized. 相似文献
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分子钳化学是当今化学学科研究的热点之一.介绍了分子钳化合物的结构、应用及新进展,重点综述了分子钳化合物的合成、分子钳对手性分子及阴离子的识别作用、分子钳对中性分子的识别作用,并对其应用前景进行了展望,期望能在医药学、生命科学、材料科学、环境科学、分子器件、生物传感器、仿生催化及分析分离科学中得到更广泛的应用. 相似文献
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Guanghui Wang Lei Huang Rong Yu Nansheng Deng 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2008,83(5):601-608
BACKGROUND: Endocrine disruptors in the aquatic environment and their potential adverse effects are currently issues of concern. One of these endocrine disruptors is 2,2‐bis(4‐hydroxy‐3‐methylphenyl)propane (BPP). In this work the molecular recognition interaction of BPP with β‐cyclodextrin (β‐CD) was studied using IR spectroscopy and steady state fluorescence spectroscopy, and the photocatalytic degradation behaviour of BPP based on molecular recognition interaction was investigated in a TiO2/UV–visible (λmax = 365 nm) system. This might provide a new method for the treatment of some organic pollutants in wastewater. RESULTS: β‐CD reacts with BPP to form a 1:1 inclusion complex, the formation constant of which is 4.94 × 103 L mol?1. The photodegradation rate constant of BPP after molecular recognition by β‐CD showed a 1.42‐fold increase in the TiO2/UV–visible (λmax = 365 nm) system. The photodegradation of BPP depended on the concentration of β‐CD, the pH value, the gaseous medium and the initial concentration of BPP. The photodegradation efficiency of BPP with molecular recognition was higher than that without molecular recognition. After 100 min of irradiation the mineralisation efficiency of BPP after molecular recognition by β‐CD reached 94.8%, whereas the mineralisation efficiency of BPP before molecular recognition by β‐CD was only 40.6%. CONCLUSION: The photocatalytic degradation of BPP after molecular recognition by β‐CD can be enhanced in the TiO2/UV‐visible (λmax = 365 nm) system. This enhancement is dependent on the enhancement of the adsorption of BPP, the moderate inclusion depth of BPP in the β‐CD cavity and the increase in the frontier electron density of BPP after molecular recognition. Copyright © 2008 Society of Chemical Industry 相似文献
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介绍了环蕃化学的结构特点及应用新进展,重点综述了:(1)多种新型环蕃化合物的合成;(2)多种新型环蕃化合物的分子离子识别;(3)多种新型环蕃化合物对手性分子的识别及仿生研究。展望了其广阔的发展和应用前景。期望能在医药学、生命科学、材料科学、环境科学及能源科学的应用上更有意义。 相似文献
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