The Brightest Fullerene: A New Isotope Effect in Molecular Fluorescence and Phosphorescence
Journal article published in 2011 by
Carlos Baleizão 
,
Mário N. Berberan Santos
,
Mário N. Berberan Santos
This paper is made freely available by the publisher.
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Abstract
The brightest one: Substitution of 12C by 13C in C70 leads to major changes in its delayed fluorescence and phosphorescence properties (see graphs). This new isotope effect decreases the internal conversion and T1S0 intersystem crossing rates by a mass effect, and increases the S1T1 intersystem crossing rate by a nuclear magnetic effect. It is also shown that 13C70 is by far the brightest fullerene known.