Understanding and exploiting long-lived near-infrared emission of a molecular ruby
作者： Sven Otto , Matthias Dorn , Christoph Förster , Matthias Bauer , Michael Seitz
DOI: 10.1016/J.CCR.2018.01.004
关键词: Metal ions in aqueous solution 、 Relaxation (NMR) 、 Photochemistry 、 Chromium 、 Excited state 、 Molecule 、 Ligand field theory 、 Near-infrared spectroscopy 、 Photosensitizer 、 Chemistry
摘要: Abstract Enabling strong and long-lived NIR emission from complexes with earth-abundant metal ions is exemplified by embedding chromium(III) in a very ligand field yielding the molecular ruby [Cr(ddpd)2]3+. This review aims at illustrating main non-radiative decay pathways for electronically excited complexes, namely back-intersystem crossing, state distortion multiphonon relaxation controlling these design. The case study of [Cr(ddpd)2]3+ highlights recent successful design strategies discusses first applications highly emissive 3d complex as optical sensor molecule photosensitizer.
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