Mechanical Fixation by Porphyrin Connection: Synthesis and Transport Studies of a Bicyclic Dimer
作者:Patrick Zwick、Kevin J. Weiland、Juraj Malinčík、Davide Stefani、Daniel Häussinger、Herre S. J. van der Zant、Diana Dulić、Marcel Mayor
DOI:10.1021/acs.joc.9b02327
日期:2020.1.3
The bowl-shaped, 3-fold interlinked porphyrin dimer 2 was obtained in respectable yields during macrocyclization attempts. Its bicyclic structure, consisting of a macrocycle made of a pair of acetylene interlinked tetraphenylporphyrins which are additionally linked by a C-C bond interlinking two pyrrole subunits, has been confirmed spectroscopically (2D-NMR, UV/vis, HR-MALDI-ToF MS). Late-stage functionalization
在大环化尝试期间,以可观的收率获得了碗形的3倍互连的卟啉二聚体2。它的双环结构由大分子环组成,该大环由一对乙炔互连的四苯基卟啉构成,并通过CC键将两个吡咯亚基相互连接,并通过光谱进行了确认(2D-NMR,UV / vis,HR-MALDI-ToF MS)。后期功能化为结构类似物1提供了乙酰基保护的末端硫醇锚定基团,从而可以在机械控制的断裂连接实验中进行单分子转运研究。观察到单分子连接的形成,在观察到的电导值中显示出很大的变化,这表明分子连接中有丰富的多样性。