Substrate templating guides the photoinduced reaction of C60 on calcite.
Substrate templating guides the photoinduced reaction of C60 on calcite.
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DOI：
10.1002/anie.201309128
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发表时间：
2014-07
影响因子：
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通讯作者：
R. Lindner;P. Rahe;Markus Kittelmann;A. Gourdon;R. Bechstein;A. Kühnle
中科院分区：
文献类型：
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作者：
R. Lindner;P. Rahe;Markus Kittelmann;A. Gourdon;R. Bechstein;A. Kühnle
用非接触原子力显微镜研究了C60富勒烯在方解石（块状绝缘体）上的光化学反应。共价键的成功从分子间距离的缩短是显而易见的，这是由莫尔维尔模式的消失清楚地表达出来的。此外，在厚膜上进行的紫外/可见光谱和质谱测量证明了我们的装置启动光诱导反应的能力。C60的辐照产生了取向良好的共价连接结构域。这些畴的取向是由方解石衬底的晶格尺寸决定的。利用晶格失配来有意地引导化学反应的方向，有望构成表面合成的一般设计原则。因此，这项工作提供了一种在体绝缘体上控制定向共价网络的制造策略。
A substrate-guided photochemical reaction of C60 fullerenes on calcite, a bulk insulator, investigated by non-contact atomic force microscopy is presented. The success of the covalent linkage is evident from a shortening of the intermolecular distances, which is clearly expressed by the disappearance of the moiré pattern. Furthermore, UV/Vis spectroscopy and mass spectrometry measurements carried out on thick films demonstrate the ability of our setup for initiating the photoinduced reaction. The irradiation of C60 results in well-oriented covalently linked domains. The orientation of these domains is dictated by the lattice dimensions of the underlying calcite substrate. Using the lattice mismatch to deliberately steer the direction of the chemical reaction is expected to constitute a general design principle for on-surface synthesis. This work thus provides a strategy for controlled fabrication of oriented, covalent networks on bulk insulators.