1449550-13-3

Upstream product

• 536-74-3 phenylacetylene 
• 76457-91-5 3-(4-bromophenyl)prop-2-ynal 
• 1449550-10-0 1-(4-bromophenyl)-5-phenylpenta-1,4-diyn-3-ol 
• 1449550-11-1 2-(4-bromophenyl)-6-phenyl-4H-selenopyran-4-one 
• 762-04-9 phosphonic acid diethyl ester 

Downstream Products

• 1449550-21-3 4-((2-(4-(diethoxyphosphoryl)phenyl)-6-phenyl-4H-selenopyran-4-ylidene)methyl)-2,6-diphenylthiopyrylium hexafluorophosphate 
• 1449550-23-5 4-((2-(4-(diethoxyphosphoryl)phenyl)-6-phenyl-4H-selenopyran-4-ylidene)methyl)-2,6-diphenylselenopyrylium hexafluorophosphate 
• 1449550-14-4 4-(4-oxo-6-phenyl-4H-selenopyran-2-yl)phenylphosphonic acid 

Relevant academic research and scientific papers

Synthesis and photoelectrochemical performance of chalcogenopyrylium monomethine dyes bearing phosphonate/phosphonic acid substituents

Chalcogenopyrylium monomethine dyes were prepared via condensation of a 4-methylchalcogenopyrylium compound with a chalcogenopyran-4-one bearing a 4-(diethoxyphosphoryl)phenyl substituent (or the phosphonic acid derivative). The dyes have absorbance maxima of 603-697 nm in the window where the solar spectrum is most intense. The dyes formed H-aggregates on TiO2, increasing the light-harvesting efficiency of the dyes. Shortcircuit photocurrent action spectra were acquired to evaluate the influence of dye structure on the photoelectrochemical performance.