Electronic and electrochemical properties as well as flowerlike supramolecular assemblies of fulleropyrrolidines bearing ester substituents with different alkyl chain lengths

摘要: A series of alkyl (methyl, ethyl, propyl, butyl) benzoate ester substituted fulleropyrrolidine derivatives (FP1–FP4) were synthesized and their electronic electrochemical properties investigated by means absorption spectra, structure calculation, cyclic voltammetry (CV), respectively. The LUMO–HOMO energies energy gaps fullerene estimated the first reduction potential measured with CV combined which are consistent those obtained from density functional theory (DFT) calculations. It was found that all fulleropyrrolidines showed very similar orbital redox behaviors, comparable well-known phenyl-C61-butyric acid methyl (PCBM). flowerlike supramolecular architectures self-assembly FP1–FP4 in chloroform–alcohol mixture solvents characterized scanning electron microscopy (SEM) X-ray diffraction (XRD). lamellar a d-spacing 1.92–2.02 nm depends on molecular size, corresponding to thickness bilayer structure, suggested face-to-face conformation substituent C60 an interdigitation bare side packing. These have high content, energetically PCBM-like, capable forming complex architectures, provide fundamental insights into design toward advanced materials.