1374359-27-9

Upstream product

• 403699-44-5 7-bromo-9,9'-dihexyl-9H-fluorene-2-carbonitrile 
• 189367-54-2 2,7-dibromo-9,9-di-n-hexylfluorene 
• 1381884-52-1 C₃₇H₄₇BrN₂O₂ 
• 1374359-26-8 7-bromo-9,9-dihexyl-9H-fluorene-2-carbohydrazide 
• 1710-98-1 p-tert-butyl benzoyl chloride 
• 1374359-25-7 methyl 7-Bromo-9,9-dihexyl-9H-fluorene-2-carboxylate 
• 313644-48-3 7-bromo-9,9-dihexyl-9H-fluorene-2-carboxylic acid 

Downstream Products

• 1374359-28-0 C₁₁₁H₁₂₉N₅O 

Relevant academic research and scientific papers

Synthesis and two-photon properties of small dendritic chromophores with symmetrical and unsymmetrical substituted skeletons

A set of novel multi-branched chromophores consisting of two groups of fluorene/oxadiazole-based analogues with generic skeletons of donor-π-acceptor (unsymmetrical) and donor-π-acceptor-π-donor (symmetrical) type has been synthesized and shown to display strong and broadly dispersed two-photon absorptivities in the near infrared (NIR) region on irradiation with femtosecond laser pulses. It is also demonstrated that structural parameters such as the number of donor units attached and the substitution pattern are closely connected to the molecular two-photon activities of these model compounds.

Two-photon absorption and effective optical power-limiting properties of small dendritic chromophores derived from functionalized fluorene/oxadiazole units

A set of novel multi-branched chromophores composed of four analogues with generic skeletons of donor-π-acceptor (D-π-A) derived from functionalized fluorene/oxadiazole moieties has been synthesized and experimentally shown to possess strong and wide-dispersed two-photon absorptivities in near infrared (NIR) region under the irradiation of femtosecond laser pulses. It is demonstrated that structural parameters, such as the size of π-framework and the number of electron-donating units attached are closely connected to the molecular two-photon activities of these model compounds. Effective optical power-attenuation behaviors in the nanosecond time domain of the studied chromophores were also investigated and the results indicate that such dye molecules can be potential materials as broadband and quick-responsive optical-limiters especially against those laser lights with longer pulses.