ABSTRACT

Here, we report the facile synthesis of Cu(II) tetraaryl-tetranaphtoporphyrin CuTNP showing an extremely sharp, intense Q band above 700 nm via retro-Diels-Alder approach. The highly saddled structure of CuTNP was confirmed using X-ray single-crystal diffraction. The optical and magnetic properties of CuTNP, as well as its excellent reversible redox behaviours, were thoroughly examined both experimentally and theoretically. The water-soluble nanocomposites encapsulating CuTNP by bent amphiphilic molecules were successfully developed, which kept the intense Q band of CuTNP in water. The strong photoacoustic response of CuTNP was detected, suggesting its potential as a photoacoustic imaging agent. This work provides metal-coordinated linearly π-extended porphyrins as potential functional materials for future biomedical applications.

摘要

在这里，我们报告了 Cu(II) 四芳基-四萘卟啉 CuTNP的简便合成，通过逆狄尔斯-阿尔德方法显示出 700 nm 以上极其尖锐、强烈的 Q 带。使用 X 射线单晶衍射证实了CuTNP的高度鞍状结构。CuTNP的光学和磁性，以及其出色的可逆氧化还原行为，在实验和理论上都得到了彻底的检验。成功开发了通过弯曲的两亲性分子包封CuTNP 的水溶性纳米复合材料，在水中保持了CuTNP的强 Q 带。CuTNP的强烈光声响应被检测到，表明其作为光声成像剂的潜力。这项工作提供了金属配位的线性 π 扩展卟啉作为未来生物医学应用的潜在功能材料。