posted on 2017-09-05, 00:00authored byChristopher M. Lemon, David C. Powers, Penelope J. Brothers, Daniel G. Nocera
The triplet state
of gold(III) corroles is exploited for optical oxygen sensing. We
report intense phosphorescence for gold(III) corroles in the near-IR,
an optical window that is ideal for tissue transparency. Moreover,
the triplet excited-state emission exhibits significant changes in
intensity and lifetime over the 0–160 Torr O2 pressure
range. This renders these compounds sensitive at biologically relevant
pressures and overcomes the spectral limitations of palladium and
platinum porphyrins for oxygen sensing in biology.