作者:Gabi Ohlendorf、Christian W. Mahler、Stefan-S. Jester、Gregor Schnakenburg、Stefan Grimme、Sigurd Höger
DOI:10.1002/anie.201306299
日期:2013.11.11
Bending the rules: Strainedbicyclophanes (see structure) with highly bent biphenylene units and a central aromatic moiety (yellow) forced into a perpendicular position were accessible in high yields by cyclization of the appropriate bromides by Yamamoto condensation. They were able to bind to graphite cutouts in solution and were adsorbed at the liquid/highly oriented pyrolytic graphite (HOPG) interface
Synthesis, cation binding, and photophysical properties of macrobicyclic anthraceno-cryptands
作者:Joseph P. Konopelski、Florence Kotzyba-Hibert、Jean-Marie Lehn、Jean-Pierre Desvergne、Frédéric Fagès、Alain Castellan、Henri Bouas-Laurent
DOI:10.1039/c39850000433
日期:——
The new cryptands, (1a) and (1b), possess remarkable spectroscopic and photophysicalproperties which are markedly affected by cationbinding and by protonation.
新的穴状配体(1a)和(1b)具有显着的光谱和光物理性质,受到阳离子结合和质子化的影响显着。
Synthesis and Characterization of 2,8-Diazaperylene-1,3,7,9-tetraone, a New Anthracene Diimide Containing Six-Membered Imide Rings
作者:Ali Reza Mohebbi、Cedric Munoz、Fred Wudl
DOI:10.1021/ol200659c
日期:2011.5.20
A successful synthesis of novel diimides, namely anthracene diimide containingsix-membered imide rings, with potential application in organic electronics is reported. The single crystal of 5a exhibits a close interplanar spacing of 3.45 Å between molecules in a stack.
A tire includes a circular tire frame formed from a resinous material, the resinous material including a thermoplastic elastomer, the thermoplastic elastomer including: a hard segment that does not contain an aromatic ring; a soft segment; and a connection portion that includes an aromatic ring and that connects the hard segment and the soft segment.
A Rational Approach to Fluorescence “Turn-On” Sensing of α-Amino-carboxylates
作者:Dowook Ryu、Eunju Park、Dae-Sik Kim、Shihai Yan、Jin Yong Lee、Byoung-Yong Chang、Kyo Han Ahn
DOI:10.1021/ja078308e
日期:2008.2.1
A rational approach to fluorescence turn-on sensing of amino carboxylates is described, which primarily relies on the perturbation of the quenching n-pi* transiton energy level of a carbonyl ionophore relative to the pi-pi* transition energy level of an anthracene in the sensor. The anthracene-based bis (trifluoroacetylcarboxanilide) sensor is structurally simple but selectively senses alpha-amino acids as their carboxylate forms over beta and gamma-homologues, by forming a (1:1)-cyclic adduct with a large fluorescence enhancement factor of 110.