171820-16-9Relevant academic research and scientific papers
Synthesis, mesomorphism, photophysics and device performance of liquid-crystalline pincer complexes of gold(iii)
Parker, Rachel R.,Liu, Denghui,Yu, Xiankang,Whitwood, Adrian C.,Zhu, Weiguo,Williams,Wang, Yafei,Lynam, Jason M.,Bruce, Duncan W.
, p. 1287 - 1302 (2021/02/12)
Emissive gold(iii) complexes of pincer 2,6-diphenylpyridines also bearing a phenylacetylide ligand have been modified at both the pincer and phenylacetylide to confer liquid crystalline properties, with most complexes showing a columnar hexagonal phase in
Suzuki-miyaura cross-coupling reaction of dichloro-heteroaromatics: Synthesis of functionalized dinucleophilic fragments
Naseer, Muhammad Moazzam,Abbas, Asghar,Hameed, Shahid,Farm, Muhammad
, p. 2717 - 2720 (2015/01/30)
The Suzuki-Miyaura cross-coupling reaction has successfully been applied for the synthesis of 4,4'- [6-(diethylamino)-1,3,5-triazine-2,4-diyl]diphenol (4a), 4,4'-(pyrimidine-4,6-diyl)diphenol (4b), 4,4'-(pyridine-2,6-diyl)diphenol (4c). The reaction of 4,
Acid-base responsive switching between 3+1 and 2+2 platinum complexes
Sooksawat, Dhassida,Pike, Sarah J.,Slawin, Alexandra M.Z.,Lusby, Paul J.
supporting information, p. 11077 - 11079 (2013/11/19)
We report that the acid-base induced changes to a cyclometallated platinum complex can be used to drive the exchange of accompanying ligands with different denticities.
Catalytic "active-metal" template synthesis of [2]rotaxanes, [3]rotaxanes, and molecular shuttles, and some observations on the mechanism of the Cu(I)-catalyzed azide-alkyne 1,3-cycloaddition
Aucagne, Vincent,Berna, Jose,Crowley, James D.,Goldup, Stephen M.,Haenni, Kevin D.,Leigh, David A.,Lusby, Paul J.,Ronaldson, Vicki E.,Slawin, Alexandra M. Z.,Viterisi, Aurelien,Walker, D. Barney
, p. 11950 - 11963 (2008/03/30)
A synthetic approach to rotaxane architectures is described in which metal atoms catalyze covalent bond formation while simultaneously acting as the template for the assembly of the mechanically interlocked structure. This "active-metal" template strategy is exemplified using the Huisgen-Meldal-Fokin Cu(I)-catalyzed 1,3-cycloaddition of azides with terminal alkynes (the CuAAC "click" reaction). Coordination of Cu(I) to an endotopic pyridine-containing macrocycle allows the alkyne and azide to bind to metal atoms in such a way that the metal-mediated bond-forming reaction takes place through the cavity of the macrocycle - or macrocycles - forming a rotaxane. A variety of mono- and bidentate macrocyclic ligands are demonstrated to form [2]rotaxanes in this way, and by adding pyridine, the metal can turn over during the reaction, giving a catalytic active-metal template assembly process. Both the stoichiometric and catalytic versions of the reaction were also used to synthesize more complex two-station molecular shuttles. The dynamics of the translocation of the macrocycle by ligand exchange in these two-station shuttles could be controlled by coordination to different metal ions (rapid shuttling is observed with Cu(I), slow shuttling with Pd(II)). Under active-metal template reaction conditions that feature a high macrocycle:copper ratio, [3]-rotaxanes (two macrocycles on a thread containing a single triazole ring) are also produced during the reaction. The latter observation shows that under these conditions the mechanism of the Cu(I)-catalyzed terminal alkyne-azide cycloaddition involves a reactive intermediate that features at least two metal ions.
Designing banana-shaped liquid crystals without Schiff's base units: m- Terphenyls, 2,6-diphenylpyridines and V-shaped tolane derivatives
Shen, Dong,Diele, Siegmar,Pelzl, Gerhard,Wirth, Ina,Tschierske, Carsten
, p. 661 - 672 (2007/10/03)
This paper reports attempts to obtain (anti)ferroelectric switchable achiral banana-shaped molecules without Schiff's base units. For this purpose we have synthesized novel V-shaped molecules consisting of rigid angular central units [1,3-disubstituted be
