Results 231 to 240 of about 3,301,387 (267)

Sensor for Nitrophenol Based on a Fluorescent Molecular Clip

Organic Letters, 2009
We report the synthesis, X-ray crystal structure, and photophysics of a fluorescent molecular clip (1). Binding studies of 1 toward phenols 2a-j were carried out using fluorescence, (1)H NMR, and IR spectroscopy, which revealed a high affinity and selectivity for 4-nitrophenol (2a) due to formation of the 1.2a complex driven by H-bonding and pi-pi ...
Nengfang, She, Meng, Gao, Liping, Cao, Anxin, Wu, Lyle, Isaacs   +4 more
openaire   +2 more sources

A Mechanism of Efficient G6PD Inhibition by a Molecular Clip

Angewandte Chemie International Edition, 2009
AbstractTriple duty: A synthetic molecular clip traps nicotinamide adenine dinucleotide phosphate (NADP+; see picture) as well as occupying both the cofactor‐ and the substrate‐binding site in glucose‐6‐phosphate (G6P) dehydrogenase. This combination of two inhibition mechanisms makes the clip highly effective and selective for this enzyme over other ...
Michael, Kirsch, Peter, Talbiersky, Jolanta, Polkowska, Frank, Bastkowski, Torsten, Schaller, Herbert, de Groot, Frank-Gerrit, Klärner, Thomas, Schrader   +7 more
openaire   +2 more sources

Strained Aromatic Oligoamide Macrocycles as New Molecular Clips

Organic Letters, 2004
Can one join both ends of a helix? A helical aromatic oligoamide was macrocyclized into a saddle-shaped bifunctional clip molecule that self-assembles into discrete circular dodecamers in the solid state and shows great potential for binding aromatic acid guests in solution.
Jiang, Hua, Léger, Jean-Michel, Guionneau, Philippe, Huc, Ivan   +3 more
openaire   +3 more sources

Synthesis and Photophysical Properties of Porphyrin-Functionalized Molecular Clips

The Journal of Organic Chemistry, 1999
Different clip-shaped receptor molecules functionalized at one side-wall with a porphyrin unit have been synthesized by a condensation involving a diamino glucoluril derivative and a porphyrin dione. A similar condensation reaction with a porphyrin tetraone resulted in porphyrin molecule with two receptor sites. The binding and photophysical properties
Reek, JNH, Rowan, AE, Crossley, MJ, Nolte, RJM   +3 more
openaire   +7 more sources

Molecular clips and tweezers with corannulene pincers

Tetrahedron Letters, 2009
Abstract Application of the synthetic methodology developed in our laboratory yields molecular clips and tweezers with corannulene pincers and cyclooctadiene or cyclooctatetraene tethers. These highly nonplanar systems possess a potential for binding guest molecules of various sizes.
Lesya Kobryn, William P. Henry, Frank R. Fronczek, Renata Sygula, Andrzej Sygula   +4 more
openaire   +1 more source

An effective tridental molecular clip for fullerenes

Journal of Physical Organic Chemistry, 2017
AbstractBy means of density functional calculations, we studied the performance of 2 fullerene receptors that contain 3 corannulene or triphenylene pincers. For the first time, we found a receptor that has a small tendency to form intramolecular stacks between the 3 corannulene pincers.
Pablo A. Denis, Michael Kramer, Catherine Lee, Michael Yanney   +3 more
openaire   +1 more source

Dynamics in Host–Guest Complexes of Molecular Tweezers and Clips

Chemistry – A European Journal, 2006
AbstractThe dynamics in the host–guest complexes of the molecular tweezers 1 a,b and clips 2 a,b with 1,2,4,5‐tetracyanobenzene (TCNB, 3) and tropylium tetrafluoroborate (4) as guest molecules were analyzed by temperature‐dependent 1H NMR spectroscopy.
Lobert, Matthias, Bandmann, Heinz, Burkert, Ulrich, Buchele, Uta P., Podsadlowski, Viola, Klärner, Frank-Gerrit   +5 more
openaire   +2 more sources

Polyglycerol‐Tagged Molecular Clips as Receptors in Protic Solvents

European Journal of Organic Chemistry, 2012
AbstractFour charge‐neutral molecular clips modified with polyglycerol (PG) dendrons of first and second generation and with hyperbranched polyglycerols (HPG) in the central unit as solubilizing units were synthesized. Their use as supramolecular hosts for the complexation of several guest molecules such as caffeine, N‐methylnicotinamide iodide, and ...
Zieringer, Maximilian, Casas Cartagena, Marçal, Burakowska, Ewelina, Taktikos, Johannes, Neuthe, Katja, Bandmann, Heinz, Klärner, Frank-Gerrit, Haag, Rainer   +7 more
openaire   +2 more sources

Self-Assembly of Rectangles and Prisms via a Molecular “Clip”

Inorganic Chemistry, 2005
Aromatic molecular "clips" bearing two symmetrically bound platinum moieties have been prepared. The molecular "clip" 4 readily self-assembled with linear linkers such as 4,4'-bipyridyl, 1,4-bis[2-(4-isocyano-3,5-diisopropylphenyl)ethynyl]benzene, and nicotinic acid to form molecular rectangles.
Duckhyun, Kim, Jong Hyub, Paek, Moo-Jin, Jun, Jin Yong, Lee, Sang Ook, Kang, Jaejung, Ko   +5 more
openaire   +2 more sources

Self-Assembly of Molecular Prisms via an Organometallic “Clip”

Organic Letters, 2002
[reaction: see text] Under the appropriate conditions, the combination of two tritopic pyridyl ligands with three metal-containing molecular "clips" spontaneously generates supramolecular coordination cages with trigonal prismatic frameworks.
Christopher J. Kuehl, Takuya Yamamoto, S. Russell Seidel, Peter. J. Stang   +3 more
openaire   +2 more sources