Blue rhenium tricarbonyl DPPZ complexes – low energy charge-transfer absorption at tissue-penetrating wavelengths

Coogan, Michael Peter and Platts, James A. (2016) Blue rhenium tricarbonyl DPPZ complexes – low energy charge-transfer absorption at tissue-penetrating wavelengths. Chemical Communications, 52 (84). pp. 12498-12501. ISSN 1359-7345

Abstract

fac-[Re(CO)3(dppz)] complexes of amido ligands generated in situ under basic conditions display an intense (ε = 16460 L mol−1 cm−1) absorption band between 500–700 nm which are assigned to an n(amido,RNH–) → π* (dppz) inter-ligand charge transfer band offering an extraordinarily low energy charge separating absorption with potential for imaging and energy application.