Through-space electronic communication of zinc phthalocyanine with substituted [60]Fullerene bearing O2Nxaza-crown macrocyclic ligands
作者:Bahram Ghanbari、Leila Shahhoseini、Niloofar Mahlooji、Parisa Gholamnezhad、Zahra Taheri Rizi
DOI:10.1016/j.saa.2016.08.031
日期:2017.1
macrocycle rings to [60]Fullerene, the decomposition point measured for [60]Fullerene moiety was increased, indicating on the promoted stability of [60]Fullerene backbone during binding to these macrocyclic ligands. Moreover, the ground state non-covalent interactions of [60]Fullerene derivatives of O2Nx (x=2, and 3) aza-crown macrocyclic ligands namely, L1-L4 with zinc phthalocyanine (ZnPc) were also
通过HPLC,电喷雾电离质量(ESI-MS),1H和13C NMR,UV-vis,IR合成并表征了两个新的大环配体,这些配体包含固定在[60]富勒烯上的17和19元O2N3供体氮杂氮杂冠。光谱,以及固态粉末X射线衍射(PXRD)和热重分析(TGA)。TGA测量显示,将这些大环上的每个环与[60]富勒烯连接后,对[60]富勒烯部分测得的分解点增加,表明[60]富勒烯骨架与这些大环配体结合时具有增强的稳定性。此外,还通过紫外可见吸收研究了O2Nx(x = 2和3)氮杂-冠状大环配体[L1-L4]与酞菁锌(ZnPc)的[60]富勒烯衍生物的基态非共价相互作用,N-甲基-2-吡咯烷酮(NMP)中的稳态和时间分辨荧光分光光度法。斯特恩-沃尔默常数(KSV)的计算表明存在有效的猝灭机制,其中包括在存在L1-L4的情况下ZnPc的激发单重态。观察到荧光强度降低与寿命参数之间存在适当的相关性,这促使我们提