225113-41-7

Upstream product

• 225113-39-3 9,9-Diethyl-7-bromo-fluorene-2-carboxaldehyde 
• 137-07-5 2-amino-benzenethiol 

Downstream Products

• 701971-73-5 N,N-di(3-methoxyphenyl)-7-(benzothiazol-2-yl)-9,9-diethylfluoren-2-amine 
• 219998-27-3 (7-(7-benzothiazol-2-yl-9,9-diethylfluoren-2-yl)-9,9-diethylfluoren-2-yl)diphenylamine 
• 1370605-03-0 N,N-di(4-methoxyphenyl)-7-(benzothiazol-2-yl)-9,9-diethyl-fluoren-2-yl-amine 
• 1190833-68-1 N,N-bis(3-(4-aminophenoxy)phenyl)-7-(benzo[d]thiazol-2-yl)-9,9-diethyl-9H-fluoren-2-amine 
• 1370605-04-1 N,N-di(4-hydroxyphenyl)-7-(benzothiazol-2-yl)-9,9-diethyl-fluoren-2-amine 
• 1370605-05-2 N,N-Di[4-(4-nitrophenoxy)phenyl]-7-(benzothiazol-2-yl)-9,9-diethyl-fluoren-2-amine 
• 1370605-06-3 N,N-Di[4-(4-aminophenoxy)phenyl]-7-(benzothiazol-2-yl)-9,9-diethyl-fluoren-2-amine 

Relevant academic research and scientific papers

Multi-armed chromophores with very large two-photon absorption cross-sections

Provided are chromophores with very large two-photon absorption cross-sections. One group of these chromophores has the formula: (T—Q)n—N—Phm wherein Q is a single bond or 1,4-phenylene, Ph is a phenyl group, n has a value of 1-3 and m has a value of 3?n, and wherein T is wherein R1and R2are alkyl groups having 1 to 20 carbon atoms, provided that when Q is a single bond, the value of n is 2 or 3. Another group of these chromophores has the formula: (T—Q)n—G—Phm wherein T is as defined above, Q is a single bond or 1,4-phenylene, Ph is a phenyl group, n has a value of 1-4 and m has a value of 4?n, and wherein G is a 4-arm core unit. Yet another group of these chromophores has the formula: (T—Q)n—G—Phm wherein T is as described previously, Q is a single bond or 1,4-phenylene, Ph is a phenyl group, n has a value of 1-6 and m has a value of 6?n, and wherein G is a 6-arm core unit.

Benzothiazole-containing two-photon chromophores exhibiting strong frequency upconversion

There are provided asymmetrical two-photon chromophores of the formula: D-Ar-A wherein Ar is selected from the group consisting of wherein Fl is a fluorene group of the formula: wherein R1 and R2 are alkyl groups having 2 to 20 carbon atoms, and wherein R1 and R2 are the same or different; wherein D is wherein Q is selected from the group consisting of -H, -OH and -O-CxH2x+1, wherein x has a value of 1 to 10; and wherein A is selected from the group consisting of wherein Z is selected from the group consisting of -O- and -S-.