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Distant protonated pyridine groups in water-soluble iron porphyrin electrocatalysts promote selective oxygen reduction to water.
TLDR
Fe(III)-meso-tetra(pyridyl)porphyrins are electrocatalysts for the reduction of dioxygen in aqueous acidic solution because the inward-pointing pyridinium groups influence proton delivery despite their distance from the iron centre. Expand
Adding to the confusion! Synthesis and metalation of pyrazole analogues of the porphyrins.
TLDR
N-substituted pyrazole dialdehydes are shown to react with a tripyrrane under '3 + 1' conditions to give aza-analogues of the N-confused porphyrins to show borderline aromatic properties and readily afford organometallic derivatives with Ni(OAc)2 and Pd(Oac)2. Expand
Pyrazole analogues of porphyrins and oxophlorins.
TLDR
This work extends the understanding of carbaporphyrinoid systems and provides the first detailed studies on pyrazole-containing porphyrin analogues. Expand
Synthesis and reactivity of N-methyl and N-phenyl meso-unsubstituted N-confused porphyrins.
TLDR
This study demonstrates that meso-unsubstituted NCPs have unusual reactivity and unique spectroscopic properties, and these results complement and extend the work on the much better known meso -tetraaryl NCP's. Expand
Synthesis and application of pyridine-based ambipolar hosts: control of charge balance in organic light-emitting devices by chemical structure modification.
TLDR
Data from OLEDs fabricated using pyridine-based host materials for organic light-emitting diodes (OLEDs) demonstrate that small structural modification of the host results in significant changes in its carrier-transporting characteristics. Expand