“Off–on–off” type of selectively pH-sensing 8-hydroxyquinoline-substituted gallium(iii) corrole

Abstract

We herein reported the synthesis and pH sensing property of a novel gallium corrole derivatives based on 8-hydroxyquinoline. Ga-corrole derivative showed good fluorescent response upon changing the pH values in the wide region of pH 1 to 12.

Corroles and Hexaphyrins: Synthesis and Application in Cancer Photodynamic Therapy

“…The trifluoroacetic acid (TFA)-catalyzed condensation of meso -pentafluorophenyl-dipyrromethane ( 1 ) with 8-hydroxyquilonine-2-carboxaldehyde ( 8 ) gave the low-symmetric A 2 B-type corrole 9 in 16% yield. Free base corrole 9 was treated with an excess of GaCl 3 in refluxing pyridine to produce the Ga(III) corrole 10 in 40% yield ( Scheme 3 ) [ 37 ]. According to the fluorescence studies, Ga(III) corrole 10 was a good “off-on-off” pH sensor in 1–14 pH range.…”

A quinoline–benzothiazole-based chemosensor coupled with a smartphone for the rapid detection of In3+ ions

“…These reagents have been applied for analytical [18][19][20][21] and separation purposes as well as for the formation of luminescent coordination compounds. [22][23][24] The 8-HQ unit has also proved to be a valuable building block for the construction of different articial receptors, 25,26 self-assembled systems and other supramolecular architectures. By using various designs of 8HQ derivatives, in this report, we designed a probe L, which has hydrazine linked covalently with 8-HQ on one side and a benzothiazole unit on the other, as a sensor for In 3+ ions.…”

Augmented Magnetic Response and Spin-Transfer in Copper Corrole/Graphene Hybrids - A DFT Study

“…On the other hand, an increasing interest has been evidenced in the chemistry of corroles and their metallo-derivatives because of their unique photophysical and electrochemical properties [20][21][22]. Corroles are analogous to porphyrins but lacking the C20 meso-carbon atom at the core structure, and they have been proposed as suitable compounds in cancer therapy, sensing, organic electronics, and catalysis [23][24][25][26][27][28][29][30][31][32][33]. In this sense, new synthetic strategies for developing corrolic derivatives have been proposed, mainly substituted at the beta [23,34,35] and/or meso [23,35,36] positions of the corrolic core.…”