Journal
ACS OMEGA
Volume 4, Issue 7, Pages 11408-11413Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.9b00909
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Funding
- SERB (DST), New Delhi, India [SB/S1/IC-009/2014]
- UGC-FRP
- Umm AlQura University
- [IICT/Pubs./2018/313]
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Supramolecular self-assembly of an octaphosphonate tetraphenyl porphyrin with three different nucleobases (adenine, cytosine, and thymine) was studied. Porphyrin 1 with 8 and 10 equiv of cytosine produces light-harvesting ring-like structures, that is, architectures similar to those observed in natural light-harvesting antenna. However, porphyrin assembled with adenine or thymine resulted in prisms and microrods, respectively. UV-vis absorption, fluorescence, and dynamic light scattering were used to determine the mode of aggregation in solution. Scanning electron microscopy and X-ray diffraction spectroscopy used to visualize the selfassembled nanostructures and their behavior in the solid state, respectively. Thus, we believe that this study may demonstrate a deeper understanding on how one needs to manipulate donor/acceptor subunits in supramolecular assemblies to construct artificial antenna architectures.
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