title: Tetraphenylethene-based star shaped porphyrins: synthesis, self-assembly, and optical and photophysical study.
abstract: Supramolecular self-assembly and self-organization are simple and convenient ways to design and create controlled assemblies with organic molecules, and they have provoked great interest due to their potential applications in various fields, such as electronics, photonics, and light-energy conversion. Herein, we describe the synthesis of two π-conjugated porphyrin molecules bearing tetraphenylethene moieties with high fluorescence quantum yield. Photophysical and electrochemical studies were conducted to understand the physical and redox properties of these new materials, respectively. Furthermore, these derivatives were used to investigate self-assembly via the solvophobic effect. The self-assembled aggregation was performed in nonpolar and polar organic solvents and forms nanospheres and ring-like nanostructures, respectively. The solution based aggregation was studied by means of UV-vis absorption, emission, XRD, and DLS analyses. Self-assembled ring-shape structures were visualized by SEM and TEM imaging. This ring-shape morphology of nanosized macromolecules might be a good candidate for the creation of artificial light-harvesting nanodevices.
authors.affiliation: †School of Applied Sciences, RMIT University, GPO Box 2476, Melbourne VIC-3001, Australia.
authors.forename: Anushri
authors.initials: A
authors.lastname: Rananaware
authors.affiliation: ‡Polymers and Functional Material Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, Telangana India.|∥RMIT-IICT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, Telangana, India.
authors.forename: Rajesh S
authors.initials: RS
authors.lastname: Bhosale
authors.affiliation: §Department of Material and Life Science Graduate School of Engineering, Osaka University, GSE Common East 12F, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.
authors.forename: Kei
authors.initials: K
authors.lastname: Ohkubo
authors.affiliation: †School of Applied Sciences, RMIT University, GPO Box 2476, Melbourne VIC-3001, Australia.
authors.forename: Hemlata
authors.initials: H
authors.lastname: Patil
authors.affiliation: †School of Applied Sciences, RMIT University, GPO Box 2476, Melbourne VIC-3001, Australia.|⊥Centre for Advanced Materials and Industrial Chemistry (CAMIC), RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia.
authors.forename: Lathe A
authors.initials: LA
authors.lastname: Jones
authors.affiliation: †School of Applied Sciences, RMIT University, GPO Box 2476, Melbourne VIC-3001, Australia.
authors.forename: Sam L
authors.initials: SL
authors.lastname: Jackson
authors.affiliation: §Department of Material and Life Science Graduate School of Engineering, Osaka University, GSE Common East 12F, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.
authors.forename: Shunichi
authors.initials: S
authors.lastname: Fukuzumi
authors.affiliation: ‡Polymers and Functional Material Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, Telangana India.
authors.forename: Sidhanath V
authors.initials: SV
authors.lastname: Bhosale
authors.affiliation: †School of Applied Sciences, RMIT University, GPO Box 2476, Melbourne VIC-3001, Australia.
authors.forename: Sheshanath V
authors.initials: SV
authors.lastname: Bhosale