210905-41-2

Upstream product

• 155064-31-6 3,3-diethyl-1-(4-ethynylbenzene)-1-triazene 
• 589-87-7 1,4-bromoiodobenzene 
• 1327277-69-9 1-(4-(2-(4-bromophenyl)ethynyl)phenyl)-3,3-diethyltriazene 
• 1066-54-2 trimethylsilylacetylene 
• 134856-57-8 1-[4-[2-(trimethylsilyl)ethynyl]phenyl]-3,3-diethyltriazene 
• 134856-58-9 1-iodo-4-(trimethylsilylethynyl)benzene 

Downstream Products

• 176977-37-0 [[4-[(4-ethynylphenyl)ethynyl]phenyl]ethynyl]triisopropylsilane 
• 176977-35-8 {[4-({4-[(triisopropylsilyl)ethynyl]phenyl}ethynyl)phenyl]ethynyl}trimethylsilane 
• 210905-13-8 [1,3,5-benzenetriyltris(2,1-ethynediyl-4,1-phenylene-2,1-ethynediyl-4,1-phenylene-2,1-ethynediyl)]tris(trimethylsilane) 
• 1327277-70-2 C₂₀H₁₉N₃ 
• 1327277-71-3 C₂₆H₂₂IN₃ 
• 169231-40-7 1-(trimethylsilylethynyl)-4-[(4-iodophenyl)ethynyl]benzene 

Relevant academic research and scientific papers

Efficient light-harvesting antenna with a multi-porphyrin cascade

A light-harvesting antenna 1 comprising three varieties of porphyrins, each having a different number of ethynyl groups at its meso positions, was designed and synthesized. Antenna 1 exhibits intense absorption throughout the visible region up to 700 nm. Steady-state and time-resolved fluorescence studies showed that singlet-excited-state energy transfer occurs from the peripheral porphyrins to the central porphyrin with >90% efficiency and rate constants on the order of 1010 s-1.

Modular Synthesis of Benzene-Centered Porphyrin Trimers and a Dendritic Porphyrin Hexamer

Rigid, star-shaped D3-symmetric arrays have been synthesized in which three porphyrin macrocyeles are attached to the 1,3, and 5 positions each of a benzene core through linkers consisting of collinear repetitive phenylethynyl units. Using the