Results 41 to 50 of about 55,078 (177)
Pharmaceuticals that contain polycyclic hydrocarbon scaffolds [PDF]
, 2015 Numerous variations on structural motifs exist within pharmaceutical compounds that have entered the clinic. These variations have amounted over many decades based on years of drug development associated with screening natural products and de novo ...
Stockdale, Tegan P., Williams, Craig M.
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Journal of Chemistry, Volume 2026, Issue 1, 2026.Isophorone is an important motif in synthetic organic chemistry, as it is highly reactive and can get involved in a diverse array of functional group transformations to access various synthetic intermediates and molecular targets. In this context, an important group of compounds is the conjugated or nonconjugated isophorone‐cored dienones, which are ...
M. Saeed Abaee +2 more
wiley +1 more source
Temperature and viscosity dependence of the triplet energy transfer process in porphyrin dimers [PDF]
, 2002 The temperature and viscosity dependence of the triplet energy transfer (TET) process in porphyrin dimers has been studied. A zinc porphyrin (donor) and a free base porphyrin (acceptor) are covalently linked together by rigid bridging chromophores at a ...
Albinsson, Bo +3 more
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Impact of Electron‐Withdrawing Passivating Molecules on Perovskite Solar Cells
ChemSusChem, Volume 18, Issue 24, December 13, 2025.The work reviews the effect of electron‐withdrawing groups on the photoelectric performance and stability of perovskite solar cells (PSCs), mainly focusing on the mechanism by which the group improves the performance and film quality of PSCs. Interfacial instability—originating from defects, ion migration, and uncontrolled crystallization—remains a ...
Guangyue Yang +8 more
wiley +1 more source
Sculpting the beta-peptide foldamer H12 helix via a designed side-chain shape [PDF]
, 2009 The long-range side-chain repulsion between the (1R, 2R, 3R, 5R)-2- amino-6,6-dimethyl-bicyclo[3.1.1]-heptane-3-carboxylic acid (trans-ABHC) residues stabilize the H12 helix in beta-peptide ...
Fülöp, Ferenc +6 more
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Nomenclature for the C60-Ih and C70-D5h(6) fullerenes (IUPAC Recommendations 2002) [PDF]
, 2017 Fullerenes are a new allotrope of carbon characterized by a closed-cage structure consisting of an even number of three-coordinate carbon atoms devoid of hydrogen atoms.
Cozzi, F. +5 more
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Smart Molecules, Volume 3, Issue 4, December 2025.Block copolymers are fundamental for the development of smart molecules. Aliphatic polyesters and polycarbonates have received attention as heteroatom‐containing polymers that are biodegradable and biocompatible. Block polymers from polyesters and polycarbonates have the ability to form smart molecules. This review presents the heterocycle monomer ring‐
Hongyu Zhao +3 more
wiley +1 more source
Metal-organic frameworks built from alkali metal ions (Li+-Cs+) and 1,2,3,4-cyclobutanetetracarboxylic acid [PDF]
, 2014 International audienceSix complexes formed by alkali metal ions with 1,2,3,4-cyclobutanetetracarboxylic acid (H4cbtc) have been synthesized and crystallographically characterized.
Thuéry, Pierre
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The Chemical Record, Volume 25, Issue 12, December 2025.Systematic overview of pyrazole functionalization reactions from C‐5 to N−H. It covers different strategies, from traditional cross‐coupling of prefunctionalized pyrazoles to more efficient direct functionalizations. This review briefly and systematically overviews C–H and N–H functionalization reactions of pyrazoles, aimed at creating new CC and C ...
Karolina Dzedulionytė Müldür +3 more
wiley +1 more source
Regiodivergent biosynthesis of bridged bicyclononanes
Nature CommunicationsMedicinal compounds from plants include bicyclo[3.3.1]nonane derivatives, the majority of which are polycyclic polyprenylated acylphloroglucinols (PPAPs). Prototype molecules are hyperforin, the antidepressant constituent of St. John’s wort, and garcinol,
Lukas Ernst +9 more
semanticscholar +1 more source