New strapped porphyrins as hosts for fullerenes: synthesis and complexation study
作者:Jean-Benoît Giguère、Jean-François Morin
DOI:10.1039/c1ob06643a
日期:——
New strapped porphyrin-based hosts with different π-conjugated moieties and linkers have been prepared and their ability to bind with fullerenes was studied in dilute solution. We found that the ability of these hosts to bind with fullerenes strongly depends on their chemical nature and more precisely on the substitution pattern of the porphyrin deck. As expected, the more electron-rich hosts containing either an exTTF or a porphyrin unit as the strap bind fullerenes more efficiently with association constants of up to 3.9 × 105 M−1. The results clearly demonstrate the potential of such hosts as a supramolecular scaffold for surface immobilization of pristine fullerenes.
我们制备了具有不同 π 共轭分子和连接体的新型带状卟啉基宿主,并研究了它们在稀溶液中与富勒烯结合的能力。我们发现,这些宿主与富勒烯的结合能力在很大程度上取决于它们的化学性质,更确切地说,取决于卟啉甲板的取代模式。正如我们所预期的那样,富含电子的宿主,无论是含有外TTF还是含有卟啉单元,都能更有效地与富勒烯结合,结合常数高达 3.9 × 105 M-1。这些结果清楚地证明了这种宿主作为超分子支架在表面固定原始富勒烯方面的潜力。