0000000001302331

AUTHOR

Rocco Caliandro

showing 4 related works from this author

Light-Induced Formation of Pb3+Paramagnetic Species in Lead Halide Perovskites

2018

Hybrid halide perovskites are soft materials processed at room temperature, revolutionary players in the photovoltaic field. Nowadays, investigation of the nature and role of defects is seen as one of the key challenges toward full comprehension of their behavior and achievement of high device stability under working conditions. We reveal the reversible generation, under illumination, of paramagnetic Pb3+ defects in CH3NH3PbI3, synthesized in ambient conditions, induced by the presence of Pb-O defects in the perovskite structure that may trap photogenerated holes, possibly mediated by the concomitant oxidation and migration of ions. According to the mechanism that we hypothesize, one charge…

Materials Chemistry2506 Metals and AlloysMaterials sciencePerovskites epr esr Pb3+ defects CH3NH3PbI3HalideEnergy Engineering and Power Technology02 engineering and technology010402 general chemistry01 natural scienceslaw.inventionIonChemistry (miscellaneous); Renewable Energy Sustainability and the Environment; Fuel Technology; Energy Engineering and Power Technology; Materials Chemistry2506 Metals and AlloysParamagnetismlawSolar cellMaterials ChemistryPerovskitesRenewable EnergyElectron paramagnetic resonancePerovskite (structure)PhotocurrentSustainability and the EnvironmentRenewable Energy Sustainability and the Environment021001 nanoscience & nanotechnology0104 chemical sciencesFuel TechnologyChemical physicsChemistry (miscellaneous)Light induced0210 nano-technology
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Triphenylphosphane Pt(II) complexes containing biologically active natural polyphenols: Synthesis, crystal structure, molecular modeling and cytotoxi…

2016

Platinum complexes bearing phosphane ligands in cis configuration with deprotonated flavonoids (3-hydroxyflavone, quercetin) and deprotonated ethyl gallate were synthesized starting from cis-[PtCl2(PPh3)(2)]. In all cases, O,O' chelate structures were obtained. While quercetin and ethyl gallate complexes are quite stable in solution, the 3-hydroxyflavonate complex undergoes a slow aerobic photodegradation in solution with formation of salicylic and benzoic acids. The X-ray diffraction structures of quercetin and ethyl gallate complexes are reported. Cell cycle studies (in the dark) of the complexes in two human cell lines revealed that the cytotoxic activity of the complex bearing 3-hydroxy…

Models MolecularPlatinum(II) complexesOrganoplatinum CompoundsMolecular modelStereochemistryPlatinum(II) complexes; Cytotoxic activity; Natural polyphenols; Flavonoids; DFTEthyl gallateCrystal structureCytotoxic activity; DFT; Flavonoids; Natural polyphenols; Platinum(II) complexesCrystallography X-Ray010402 general chemistry01 natural sciencesBiochemistryMedicinal chemistryDFTInorganic ChemistryHydrolysischemistry.chemical_compoundDeprotonationHumansChelationPhotodegradationCytotoxic activity DFT Flavonoids Natural polyphenols Platinum(II) complexesFlavonoidsCytotoxic activityCytotoxins010405 organic chemistryChemistryPolyphenols0104 chemical sciencesMCF-7 CellsNatural polyphenolsCis–trans isomerism
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CCDC 1430059: Experimental Crystal Structure Determination

2016

Related Article: Maria Michela Dell'Anna, Valentina Censi, Benedetta Carrozzini, Rocco Caliandro, Nunzio Denora, Massimo Franco, Daniele Veclani, Andrea Melchior, Marilena Tolazzi, Piero Mastrorilli|2016|J.Inorg.Biochem.|163|346|doi:10.1016/j.jinorgbio.2016.08.006

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterscis-(4-(357-trihydroxy-4-oxo-4H-1-benzopyran-2-yl)benzene-12-bisolato)-bis(triphenylphosphine)-platinum(ii)Experimental 3D Coordinates
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CCDC 1430058: Experimental Crystal Structure Determination

2016

Related Article: Maria Michela Dell'Anna, Valentina Censi, Benedetta Carrozzini, Rocco Caliandro, Nunzio Denora, Massimo Franco, Daniele Veclani, Andrea Melchior, Marilena Tolazzi, Piero Mastrorilli|2016|J.Inorg.Biochem.|163|346|doi:10.1016/j.jinorgbio.2016.08.006

Space GroupCrystallographycis-(5-(ethoxycarbonyl)-3-hydroxybenzene-12-bis(olato))-bis(triphenylphosphine)-platinum(ii)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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