Dallas Panagiotis, Zhou Shen, Cornes Stuart, Niwa Hiroyuki, Nakanishi Yusuke, Kino Yasuhiro, Puchtler Tim, Taylor Robert A, Briggs G Andrew D, Shinohara Hisanori, Porfyrakis Kyriakos
Department of Materials, University of Oxford, Oxford, OX1 3PH, United Kingdom.
Department of Chemistry, Nagoya University, Japan.
Chemphyschem. 2017 Dec 15;18(24):3540-3543. doi: 10.1002/cphc.201701182. Epub 2017 Nov 16.
Fullerene dyads bridged with perfluorinated linking groups have been synthesized through a modified arc-discharge procedure. The addition of Teflon inside an arc-discharge reactor leads to the formation of dyads, consisting of two C fullerenes bridged by CF groups. The incorporation of bridging groups containing electronegative atoms lead to different energy levels and to new features in the photoluminescence spectrum. A suppression of the singlet oxygen photosensitization indicated that the radiative decay from singlet-to-singlet state is favoured against the intersystem crossing singlet-to-triplet transition.
通过改进的电弧放电程序合成了由全氟连接基团桥连的富勒烯二元体。在电弧放电反应器内添加聚四氟乙烯会导致形成二元体，该二元体由两个通过CF基团桥连的C富勒烯组成。含有电负性原子的桥连基团的引入导致不同的能级以及光致发光光谱中的新特征。单线态氧光敏化的抑制表明，从单重态到单重态的辐射衰变优于从单重态到三重态的系间窜越。
