833453-13-7Relevant articles and documents
Mechanical bond formation by radical templation
Li, Hao,Fahrenbach, Albert C.,Dey, Sanjeev K.,Basu, Subhadeep,Trabolsi, Ali,Zhu, Zhixue,Botros, Youssry Y.,Stoddart, J. Fraser
, p. 8260 - 8265 (2010)
A radical interaction has been employed as the recognition motif in the template-directed synthesis of a [2]rotaxane composed of cyclobis(paraquat-p- phenylene) and a viologen derivative. The ruthenium tris(bipyridine)/ triethanolamine system is used as the electron-transfer photocatalyst to generate the necessary radical cation components that result in the formation of an inclusion complex. A stoppering reaction follows to form the mechanical bond.
HYBRID NANOPARTICLES CONTAINING DENDRONS, METHODS OF PRODUCING SUCH HYBRID NANOPARTICLES, AND USES THEREOF
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, (2017/01/31)
The present disclosure relates to a hybrid nanoparticle comprising a metallic core and at least one lipophilic dendron attached to the surface of the metallic core, and methods of producing such hybrid nanoparticles. The present disclosure also relates to
Selective fluorescence sensing of zinc and mercury ions with hydrophilic 1,2,3-triazolyl fluorene probes
Nguyen, Dao M.,Frazer, Andrew,Rodriguez, Luis,Belfield, Kevin D.
, p. 3472 - 3481 (2011/12/03)
The ability to rapidly detect biologically and environmentally significant metal ions such as zinc and mercury is important to study a number of important cellular and environmental processes. Hydrophilic bis(1,2,3-triazolyl)fluorene- based derivatives containing a 1,2,3-triazole-based recognition moiety were synthesized through Click chemistry and characterized by UV-vis absorption, fluorescence emission, and two-photon absorption as new fluorescence sensing probes, selective for Zn2+ and Hg2+ ions. The UV-vis absorption and fluorescence emission spectra of the complexes exhibited blue-shifted absorption and emission spectra upon chelation to Zn2+ and Hg2+ ions, resulting in ca. 2-fold enhancement in fluorescence. Fluorometric titration revealed that 1:2 and 1:3 ligand to metal complexes formed with binding constants of 108 and 1016 for Zn 2+ and Hg2+, respectively. The two-photon absorption cross sections for the probes and probe-metal ion complexes ranged from 200 to 350 GM at 800 nm. These novel fluorescent compounds may have potential as new metal ion sensors to probe cellular and biological environments.
