917596-91-9

Upstream product

• 937026-89-6 zinc 5,15-bis-(3,5-bis-octyloxy-phenyl)-10-ethynyl-20-trihexylsilanylethynyl-porphyrin dimer 
• 1054448-36-0 zinc 5,15-bis-(3,5-bis-octyloxy-phenyl)-10-ethynyl-20-trihexylsilanylethynyl porphyrin 

Downstream Products

• 937026-99-8 C₄H₉C₆H₄(C₂C₂₀H₈N₄Zn(C₆H₃(OC₈H₁₇)2)2C₂)2C₆H₄C₄H₉ 
• 937026-89-6 zinc 5,15-bis-(3,5-bis-octyloxy-phenyl)-10-ethynyl-20-trihexylsilanylethynyl-porphyrin dimer 
• 937026-98-7 zinc 5,15-bis-(3,5-bis-octyloxy-phenyl)-10,20-bis-ethynyl-porphyrin dimer 
• 937026-98-7 C₁₃₆H₁₆₆N₈O₈Zn₂ 

Relevant academic research and scientific papers

Two-photon absorption in butadiyne-linked porphyrin dimers: Torsional and substituent effects

Dyes exhibiting efficient two-photon absorption (2PA) are in demand for a wide range of applications, and meso-meso butadiyne-linked porphyrin dimers (bis-porphyrins) are promising chromophores in this area. As part of an investigation of the structure-property relationships controlling the performance of these dyes, we present the synthesis of eight π-extended dimers, with substituents providing diverse push and pull electronic effects, and high solubility. We show that the peak 2PA cross sections can be increased from 3000 GM to 20000 GM by attaching terminal electron-withdrawing or -donating groups, and by converting the free-base dimers to zinc complexes. The two-photon excited fluorescence spectra of porphyrin dimers in viscous media, under conditions such that excited states do not planarize prior to emission, reveal that dimers in planar conformations dominate the two-photon absorption. This journal is the Partner Organisations 2014.

Probing the efficiency of electron transfer through porphyrin-based molecular wires

Electron transfer over long distances is important for many future applications in molecular electronics and solar energy harvesting. In these contexts, it is of great interest to find molecular systems that are able to efficiently mediate electrons in a