0000000001301749

AUTHOR

Hannah E. Hashimoto

showing 6 related works from this author

Late-Stage Modification of Electronic Properties of Antiaromatic and Diradicaloid Indeno[1,2-b]fluorene Analogues via Sulfur Oxidation

2020

The ability to alter optoelectronic and magnetic properties of molecules at a late stage in their preparation is in general a nontrivial feat. Here, we report the late-stage oxidation of benzothiop...

010405 organic chemistryChemistryOrganic ChemistryLate stagechemistry.chemical_elementFluoreneequipment and supplies010402 general chemistryPhotochemistry01 natural sciencesSulfur0104 chemical scienceschemistry.chemical_compoundMoleculehuman activitiesAntiaromaticityElectronic propertiesThe Journal of Organic Chemistry
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Fluoreno[2,1-a]fluorene: an ortho-naphthoquinodimethane-based system with partial diradical character.

2019

Fluoreno[2,1-a]fluorene, a molecule comprising fused ortho-quinodimethane units in a 1,5-napthoquinodimethane core, has been prepared and investigated with spectroscopy (UV-Vis-NIR, 1H-NMR and Raman), SQUID magnetometry, spectroelectrochemistry and quantum chemistry. While para-quinodimethanes with a 2,6-substitution pattern exist as closed-shell species and meta-quinodimethanes with 2,7-substitution favour a ground electronic state with very large diradical character, our 1,5-substituted ortho-naphthoquinodimethane-based system exhibits an intermediate degree of diradical character.

Materials scienceFluorene010402 general chemistry01 natural sciencesQuantum chemistryCatalysischemistry.chemical_compoundsymbols.namesakebiology.animalMaterials ChemistryMoleculeSpectroscopySquidbiology010405 organic chemistryDiradicalMetals and AlloysGeneral Chemistry0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCrystallographyCharacter (mathematics)chemistryCeramics and CompositessymbolsRaman spectroscopyChemical communications (Cambridge, England)
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CCDC 1995028: Experimental Crystal Structure Determination

2020

Related Article: Justin J. Dressler, Joshua E. Barker, Lucas J. Karas, Hannah E. Hashimoto, Ryohei Kishi, Lev N. Zakharov, Samantha N. MacMillan, Carlos J. Gomez-Garcia, Masayoshi Nakano, Judy I. Wu, Michael M. Haley|2020|J.Org.Chem.|85|10846|doi:10.1021/acs.joc.0c01387

Space GroupCrystallography714-bis(246-trimethylphenyl)-512-dibenzo[dd']s-indaceno[12-b:56-b']bisthiophene-551212-tetrone chloroform solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1994473: Experimental Crystal Structure Determination

2020

Related Article: Justin J. Dressler, Joshua E. Barker, Lucas J. Karas, Hannah E. Hashimoto, Ryohei Kishi, Lev N. Zakharov, Samantha N. MacMillan, Carlos J. Gomez-Garcia, Masayoshi Nakano, Judy I. Wu, Michael M. Haley|2020|J.Org.Chem.|85|10846|doi:10.1021/acs.joc.0c01387

614-bis(4-t-butyl-26-dimethylphenyl)-513-[1]benzothieno[2''3'':2'3']indeno[5'6':56]indeno[21-b][1]benzothiophene-551313-tetrone acetonitrile solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1995029: Experimental Crystal Structure Determination

2020

Related Article: Justin J. Dressler, Joshua E. Barker, Lucas J. Karas, Hannah E. Hashimoto, Ryohei Kishi, Lev N. Zakharov, Samantha N. MacMillan, Carlos J. Gomez-Garcia, Masayoshi Nakano, Judy I. Wu, Michael M. Haley|2020|J.Org.Chem.|85|10846|doi:10.1021/acs.joc.0c01387

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters918-bis(4-t-butyl-26-dimethylphenyl)-514-[12]benzothiazino[4''3'':2'3']indeno[5'6':56]indeno[12-c][12]benzothiazine-551414-tetrone chloroform solvateExperimental 3D Coordinates
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CCDC 1995030: Experimental Crystal Structure Determination

2020

Related Article: Justin J. Dressler, Joshua E. Barker, Lucas J. Karas, Hannah E. Hashimoto, Ryohei Kishi, Lev N. Zakharov, Samantha N. MacMillan, Carlos J. Gomez-Garcia, Masayoshi Nakano, Judy I. Wu, Michael M. Haley|2020|J.Org.Chem.|85|10846|doi:10.1021/acs.joc.0c01387

Space GroupCrystallographyCrystal System613-bis(4-t-butyl-26-dimethylphenyl)-512-dibenzo[dd']s-indaceno[21-b:65-b']bisthiophene-551212-tetrone chloroform dichloromethane acetonitrile solvateCrystal StructureCell ParametersExperimental 3D Coordinates
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