Self-assembled monolayers of benzylmercaptan and para-cyanobenzylmercaptan on gold: surface infrared spectroscopic characterization.
Self-assembled monolayers of benzylmercaptan and para-cyanobenzylmercaptan on gold: surface infrared spectroscopic characterization.
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金上苯甲基硫醇和对氰基苯甲基硫醇的自组装单层：表面红外光谱表征。
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
F. Tuczek
中科院分区：
文献类型：
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作者：
K. Rajalingam;L. Hallmann;T. Strunskus;Asif Bashir;Christof Wöll;F. Tuczek
用苯甲基硫醇 (BM) 和对氰基苯甲基硫醇 (pCBM) 在金基底上制备自组装单分子层 (SAM)，并使用传统红外反射吸收光谱 (IRRAS) 和偏振调制红外反射吸收光谱 (PM-IRRAS) 对所得表面进行研究。通过与透射红外光谱和理论 (DFT) 模拟进行比较来分析 IRRAS 数据。光谱结果表明存在有序的 BM 和 pCBM 单层，其方向垂直于表面。对 IRRAS 和 PM-IRRAS 数据进行了比较，并讨论了两种方法各自的优点。
Self-assembled monolayers (SAMs) on gold substrates were prepared from benzylmercaptan (BM) and para-cyanobenzylmercaptan (pCBM), and the resulting surfaces were investigated using conventional infrared reflection-absorption spectroscopy (IRRAS) as well as polarization modulation infrared reflection-absorption spectroscopy (PM-IRRAS). IRRAS data are analyzed by comparison with transmission IR spectra and theoretical (DFT) simulations. The spectroscopic results indicate the presence of well-ordered monolayers of BM and pCBM with an orientation perpendicular to the surface. IRRAS and PM-IRRAS data are compared to each other and the respective merits of both methods are discussed.