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Issue 3, 2013
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Trapping fullerenes with jellyfish-like subphthalocyanines

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Abstract

Six electronically different concave-shaped subphthalocyanines (SubPcs) have been prepared for testing the structural factors governing fullerenes encapsulation. Thus, the supramolecular interaction of SubPcs with C60 and C70 fullerenes in solution has been studied by Job's plot and titration experiments, which yielded quantitative information on both the stoichiometry and strength of the complexes in toluene solution. The importance of the electronic nature of the SubPc was demonstrated, as it influences not only the stability of the complex, but also its stoichiometry. Alkyl chains incorporated in hexaalkylthio-substituted SubPcs seem to in some way cooperate in the binding process and influence its kinetics. In the resulting 2 : 1 complexes, the large absorption cross section of SubPcs throughout the visible part of the spectrum is the beginning of an unidirectional energy transfer to funnel the excited state energy from the periphery (i.e., two SubPcs) to the core (i.e., C60 and C70).

Graphical abstract: Trapping fullerenes with jellyfish-like subphthalocyanines

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Supplementary files

Article information


Submitted
10 Nov 2012
Accepted
14 Jan 2013
First published
25 Jan 2013

Chem. Sci., 2013,4, 1338-1344
Article type
Edge Article

Trapping fullerenes with jellyfish-like subphthalocyanines

I. Sánchez-Molina, C. G. Claessens, B. Grimm, D. M. Guldi and T. Torres, Chem. Sci., 2013, 4, 1338
DOI: 10.1039/C3SC21956A

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