Search results for "Pi interaction"

showing 3 items of 23 documents

A Multi-Component Reaction towards the Development of Highly Modular Hydrogelators

2018

Herein we report a multi‐component reaction approach for the development of a new class of hydrogelators based on the OxoTriphenylHexanOate (OTHO) backbone. A focused library of OTHOs has been synthesized and their hydrogelation features evaluated. The two most potent hydrogelators were studied by rheology revealing different stiffness, appearances and thixotropic behavior of the gels. The new gelators showcase the versatility of the OTHO backbone as a platform for the design of functionalized hydrogels with tunable gel properties. peerReviewed

Thixotropymulticomponent reactionNanotechnologypi interactions010402 general chemistry01 natural sciencesCatalysispyridine N-oxideRheologyMulti-component reactionta116geelitkemiallinen synteesi010405 organic chemistryChemistrybusiness.industryOrganic ChemistryGeneral Chemistryself-assemblyModular designgels0104 chemical sciencesSelf-healing hydrogelsSelf-assemblybusiness
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Discrete supramolecular donor-acceptor complexes

2009

The renewed interest in noncovalently associating electroactive molecules arises in part from the quest for new organic materials that convert solar energy into electrical/ chemical equivalents. In this context, the formation of charge-separated states is a key prerequisite. Charge-transfer events triggered by light have been studied in supramolecular donor–acceptor systems based on hydrogen bonds and coordinative metal bonds. Although many of the most widely utilized electroactive fragments feature large pconjugated surfaces, to date the use of p–p aromatic interactions has mainly been limited to the construction of semi-infinite ensembles of chromophores either to achieve charge transport…

chemistry.chemical_compoundChemistryHydrogen bondComputational chemistryTweezersSupramolecular chemistryMoleculePi interactionContext (language use)General ChemistryChromophoreCatalysisTetrathiafulvalene
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Crystal structure of 4-{2-[4-(di­methyl­amino)­phen­yl]diazen-1-yl}-1-methyl­pyridinium iodide

2015

The molecular geometry of the ionic title compound, C14H17N4+·I−or DAZOP+·I−, is essentially featureless. Regarding the crystal structure, in addition to the obvious cation–anion Coulombic interactions, the packing is mostly directed by non-covalent interactions involving both ring systems, as well as the iodide anion. It consists of cationic molecules aligned along [101] and disposed in an antiparallel fashion while linked into π-bonded dimeric entities by a stacking contact involving symmetry-related phenyl rings, with a centroid–centroid distance of 3.468 (3) Å and a slippage of 0.951 Å. The dimers are, in addition, sustained by a number of C—H...I and I...π (I...centroid = 3.876 Å) inte…

crystal structureC—H⋯ π inter­actionsIodideStackingIonic bondingNanotechnologyCrystal structureRing (chemistry)NLOlcsh:Chemistrychemistry.chemical_compoundGeneral Materials SciencePi interactionI⋯π inter­action[DAZOP+][I−]chemistry.chemical_classificationdyeChemistryCrystal structureCationic polymerizationGeneral ChemistryCondensed Matter PhysicsC—H... π interactionsData ReportsI...π interactionCrystallographyπ–π inter­actionlcsh:QD1-999π–π interactionPyridinium
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