Diimines photoinduced electron transfer

M -Dialkyldiazacrown ethers and their precursors fcis(alkylamino) derivatives of tri- and tetraethylene glycols were prepared <96CCCC622>. New hydroxy-bearing dibenzo-azocrown ethers have been conveniently prepared utilizing l,3-Ws(2-formylphenoxy)-2-propanol and a diamine, followed by reduction of the intermediate diimine <96P1197>. Fluorescent photoinduced electron transfer sensor 5 with monoaza-18-crown-6 and guanidinium receptor units demonstrated a fluorescence with T -aminobutyric acid in a mixed... 

Pioneering works by Harriman and Sauvage reported the zinc(II)-gold(III) bis(porphyrin)-type complexes with diimine linkers, where the photoinduced electron transfer process from the zinc(II) porphyrin excited state to the... 

Figure 1 Photoinduced electron transfer schemes for type 1 and type 2 metal-organic dyads. Key L is a diimine ligand such as 2,2 -bipyridine M is a transition metal dn indicates the electron count in the valence shell d-orbitals of M A is an organic electron acceptor D is an organic electron donor FET is forward ET BET is back ET.

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