293757-13-8

Upstream product

• 14348-75-5 2,7-dibromofluorene-9-one 
• 768-60-5 4-methoxyphenylacetylen 
• 16218-30-7 2,7-diiodofluoren-9-one 
• 486-25-9 9-fluorenone 
• 100-06-1 1-(4-methoxyphenyl)ethanone 

Downstream Products

• 293757-23-0 9,9'-(1,4-phenylene)bis[2,7-bis[2-(4-methoxyphenyl)ethyl]-9H-fluoren-9-ol] 
• 293757-17-2 2,7-bis[2-(4-methoxyphenyl)ethyl]-9H-fluoren-9-one 

Relevant academic research and scientific papers

Synthesis and two-photon absorption spectrum of fluorenone-based molecules

The two-photon absorption (2PA) of five symmetrical fluorenone-based molecules is studied by femtosecond wavelength-tunable Z-scan, as well as quantum-chemical calculations. The molecules are transparent for wavelengths greater than 500?nm and two main one-photon absorption bands are observed in the blue region; one weak, centered at 450?nm, and a stronger one at approximately 360?nm. We observed a strong 2PA band located around 720?nm with maxima 2PA cross-sections between 100 and 230?GM. Quantum chemical calculations employing the response function formalism were performed at the Density Function Theory level to support the interpretation of the experimental nonlinear spectra.

Self-assembly of quinodimethanes through covalent bonds. Part III. Investigations on the preparation of nanostructures

As part of our studies on the tetramerization of quinodimethane 1 to the macrocyclic compound 2, the influence of substituents on this reaction was investigated. It was found that a large range of substituents such as 2- phenylethyl, 2-(4-methoxyphenyl)et