单层
卡宾
动能
制作
纳米技术
纳米尺度
材料科学
吸附
化学
动力控制
组合化学
化学物理
物理化学
有机化学
催化作用
物理
医学
替代医学
病理
量子力学
作者
Christian Gutheil,Gina Roß,Saeed Amirjalayer,B Mo,Andreas Schäfer,Nikos L. Doltsinis,Björn Braunschweig,Frank Glorius
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-01-22
标识
DOI:10.1021/acsnano.3c08045
摘要
Despite the substantial success of N-heterocyclic carbenes (NHCs) as stable and versatile surface modification ligands, their use in nanoscale applications beyond chemistry is still hampered by the failure to control the carbene binding mode, which complicates the fabrication of monolayers with the desired physicochemical properties. Here, we applied vibrational sum-frequency generation spectroscopy to conduct a pseudokinetic surface analysis of NHC monolayers on Au thin films under ambient conditions. We observe for two frequently used carbene structures that their binding mode is highly dynamic and changes with the adsorption time. In addition, we demonstrate that this transition can be accelerated or decelerated to adjust the binding mode of NHCs, which allows fabrication of tailored monolayers of NHCs simply by kinetic control.
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