0000000000004939

AUTHOR

Mauro Carraro

showing 3 related works from this author

Mesomorphic and electrooptical properties of viologens based on non-symmetric alkyl/polyfluoroalkyl functionalization and on an oxadiazolyl-extended …

2019

Two different sets of ionic liquid crystals based on bistriflimide salts of non-symmetrically substituted polyfluorinated bipyridinium (viologens) and bent symmetrically substituted dialkyl-oxadiazolyl-bipyridinium have been synthesized, in order to study the effect on the mesomorphic and electrooptical properties of the non-symmetric functionalization (alkyl chain and fluoroalkyl chains of different lengths) on the two pyridinium rings and additionally the effect of a bent conjugated spacer among the two pyridinium units of the viologen. POM and DSC characterization show that the synthesized salts have a mesomorphic and, in some cases, polymesomorphic behaviour in a wide thermal range, als…

Materials sciencePHASEATALUREN02 engineering and technologySALTS010402 general chemistry01 natural scienceschemistry.chemical_compoundMaterials ChemistrymedicineBistriflimideionic liquid crystals viologens fluoroalkyl chainsviologensfluoroalkyl chainsAlkylSettore CHIM/02 - Chimica Fisicachemistry.chemical_classificationREADTHROUGHDERIVATIVESIONIC LIQUID-CRYSTALSMesophaseViologenGeneral ChemistrySettore CHIM/06 - Chimica Organica021001 nanoscience & nanotechnology0104 chemical sciencesCrystallographyREDUCTIONRadical ionchemistryElectrochromismIonic liquidCOMPLEXESPyridiniumionic liquid crystalsPOLYMERS0210 nano-technologyCOLUMNARmedicine.drug
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Supramolecular Design of Low-dimensional Carbon Nano-hybrids encoding a Polyoxometalate-bis-Pyrene Tweezer

2014

A novel bis-pyrene tweezer anchored on a rigid polyoxometalate scaffold fosters a unique interplay of hydrophobic and electrostatic supramolecular interactions, to shape carbon nanostructures (CNSs)-based extended architectures.

Materials Chemistry2506 Metals and AlloysSurfaces Coatings and FilmCarbon nanotubelaw.inventionCatalysiCoatings and Filmschemistry.chemical_compoundlawhybrid materialsMaterials ChemistryCarbon nanostructures; recognition; hybrid materials; polyoxometalatesMaterials Chemistry2506 Metals and AlloyPyrenesPyreneElectronic Optical and Magnetic MaterialChemistry (all)Metals and AlloysTungsten CompoundsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsSurfacesSpectrophotometryPolyoxometalatePyrenerecognitionLangmuir-Schaefer filmsHybrid materialHydrophobic and Hydrophilic InteractionsCarbon nanostructuresMaterials scienceStatic ElectricitySupramolecular chemistrychemistry.chemical_elementNanotechnologyCeramics and CompositeCarbon nanotubeCatalysisNano-ElectronicpolyoxometalatesChemistry (all); Catalysis; Ceramics and Composites; Electronic Optical and Magnetic Materials; Surfaces Coatings and Films; Materials Chemistry2506 Metals and Alloys; 2506Optical and Magnetic Materialscarbon nanotubeHybrid materialPolyoxometalateGeneral ChemistryCarbon nanostructuresCarbonNanostructureschemistryCeramics and Composites2506Supramolecular chemistryCarbon
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Thermal behaviour and electrochemical properties of bis(trifluoromethanesulfonyl)amide and dodecatungstosilicate viologen dimers

2012

We report the synthesis and characterization of dimeric viologen salts (1',1''-(alkane-1,n-diyl)bis(1-ethyl-4,4'-bipyridinium) with n = 4-10) with bis(trifluoromethanesulfonyl)amide (bistriflimide, Tf(2)N(-)) as a counteranion. For n = 4, 5 and 6, and for the nonylviologen cation (1,1'-dinonyl-4,4'-bipyridinium) we also prepared salts with the totally inorganic dodecatungstosilicate anion, SiW(12)O(40)(4-), featuring a poly-charged surface and nanosized dimensions. The materials have been characterized by means of calorimetric techniques, X-ray diffraction and solid state NMR and a comparison is made with analogous monomeric viologen salts exhibiting smectic mesophases. A strong odd-even ef…

ChemistryDimerGeneral Physics and AstronomyViologenPhotochemistryNMRX-ray diffractionviologen dimerchemistry.chemical_compoundCrystallographySolid-state nuclear magnetic resonanceSettore CHIM/03 - Chimica Generale E InorganicaLiquid crystalAmidepolyoxometalateIonic liquidmedicineBistriflimidePhysical and Theoretical ChemistryCyclic voltammetrycalorimetrymedicine.drug
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