Supramolecular construction of donor-acceptor nanostructures capable of mimicking natural photosynthesis is one of the fastest growing areas of research.  The potential application of these to the design of molecular systems lies in light energy harvesting, fuel production, and nanotechnology.         Nanocarbon materials, viz., fullerenes, carbon nanotubes and graphene are highly sought out materials for building donor-acceptor hybrids especially when combined with suitable electron donors such as the well-known porphyrin and phthalocyanine tetrapyrroles.  The aforementioned nanocarbon materials offer outstanding properties and versatility needed for electron transfer applications.  The focus of this talk is to highlight our recent progress in the design, construction and electron transfer properties of tetrapyrrole-nanocarbon hybrids.  The self-assembly methods developed to build the tetraphyrrole-nanocarbon hybrids in our laboratory involving p-p stacking, metal-ligand axial coordination, ion-dipole interaction as well as ion-pairing with the help of suitably functionalized tetrapyrrole and nanocarbon materials with be discussed.  Photoinduced electron transfer leading charge separation in the nanohybrids and the nature of the nanocarbon material in charge stabilization will be emphasized.  Additionally, the advantages and limitations of the present tetrapyrrole-nanocarbon hybrids in photoelectrochemical light-to-electricity conversion and photocatalytic applications will be highlighted. References D'Souza F and Ito O. Chem. Soc. Rev. 2012; 41 , 86-96.D'Souza F, Sandanayaka ASD and Ito O. J. Phys. Chem. Letts. 2010; 1 : 2586-2593.D'Souza F and Ito O. in Handbook of Porphyrin Science Eds. Kadish, KM, Guilard R, and Smith KM, World Science Publishers, Vol. 1, Chapter 4, pp 307-437, 2010.D'Souza F and Ito O. Chem. Commun. 2009; 4913-4928.

Light harvesting supramolecular porphyrin-nanocarbon donor-acceptor hybrids

247th National Meeting (2014)

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