Author: Alexander Giovannitti

Single and Multiple Additions of Dibenzoylmethane onto Buckminsterfullerene

2013

A novel dibenzoylmethane-fullerene e,e,e-tris adduct was synthesized by the application of a variation of the Bingel–Hirsch conditions and characterized among others by X-ray crystallography. In addition, the corresponding hexakis adduct was detected by MALDI-TOF-MS analysis. Its existence was supported by density-functional-theory (DFT) computations. Furthermore a new synthesis of bis(benzoyl)methanofullerene was established, and its molecular structure was elucidated by X-ray crystallography. DFT computations reproduced the experimentally determined conformation and predict a low energy barrier for the rotation of the two benzoyl moieties.

FullereneDibenzoylmethane010405 organic chemistryOrganic Chemistry010402 general chemistryMass spectrometry01 natural sciences0104 chemical sciencesAdductchemistry.chemical_compoundLow energyBuckminsterfullerenechemistryComputational chemistryMoleculePhysical and Theoretical ChemistryEuropean Journal of Organic Chemistry

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Controlling the mode of operation of organic transistors through side chain engineering

2016

Electrolyte-gated organic transistors offer low bias operation facilitated by direct contact of the transistor channel with an electrolyte. Their operation mode is generally defined by the dimensionality of charge transport, where a field-effect transistor allows for electrostatic charge accumulation at the electrolyte/semiconductor interface, whereas an organic electrochemical transistor (OECT) facilitates penetration of ions into the bulk of the channel, considered a slow process, leading to volumetric doping and electronic transport. Conducting polymer OECTs allow for fast switching and high currents through incorporation of excess, hygroscopic ionic phases, but operate in depletion mode…

Materials scienceTransconductanceNanotechnologyHardware_PERFORMANCEANDRELIABILITY02 engineering and technologyElectrolyte010402 general chemistry01 natural scienceslaw.inventionelectrochemical transistorlawMD MultidisciplinaryHardware_INTEGRATEDCIRCUITSSide chainConductive polymerMultidisciplinarySubthreshold conductionbusiness.industrysemiconducting polymersTransistor021001 nanoscience & nanotechnologyequipment and supplies0104 chemical sciencesorganic electronicsSemiconductorPhysical SciencesOptoelectronics0210 nano-technologybusinessHardware_LOGICDESIGNOrganic electrochemical transistor

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Single and Multiple Additions of Dibenzoylmethane onto Buckminsterfullerene (Eur. J. Org. Chem. 35/2013)

2013

chemistry.chemical_compoundBuckminsterfullereneFullerenechemistryDibenzoylmethaneComputational chemistryOrganic ChemistryOrganic chemistryPhysical and Theoretical ChemistryMass spectrometryEuropean Journal of Organic Chemistry

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