0000000001306152

AUTHOR

Sobi Asako

showing 5 related works from this author

Negatively Curved Nanographene with Heptagonal and [5]Helicene Units

2020

Negatively curved nanographene (NG) 4, having two heptagons and a [5]helicene, was unexpectedly obtained by aryl rearrangement and stepwise cyclodehydrogenations. X-ray crystallography confirmed the saddle-shaped structures of intermediate 3 and NG 4. The favorability of rearrangement over helicene formation following radical cation or arenium cation mechanisms is supported by theoretical calculations. NG 4 demonstrates a reversible mechanochromic color change and solid-state emission, presumably benefiting from its loose crystal packing. After resolution by chiral high-performance liquid chromatography, the circular dichroism spectra of enantiomers 4-(P) and 4-(M) were measured and showed …

[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]CommunicationArylResolution (electron density)General Chemistry010402 general chemistry01 natural sciencesBiochemistryCatalysis0104 chemical sciencesCrystalchemistry.chemical_compoundCrystallographyColloid and Surface ChemistrychemistryRadical ionHelicene[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]Arenium ionHeptagonEnantiomer[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]ComputingMilieux_MISCELLANEOUS
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CCDC 2004421: Experimental Crystal Structure Determination

2020

Related Article: Zijie Qiu, Sobi Asako, Yunbin Hu, Cheng-Wei Ju, Thomas Liu, Loïc Rondin, Dieter Schollmeyer, Jean-Sébastien Lauret, Klaus Müllen, Akimitsu Narita|2020|J.Am.Chem.Soc.|142|14814|doi:10.1021/jacs.0c05504

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters1823-di-t-butyl-1213-ethenocyclohepta[uvwxyz]dibenzo[45:67]cyclohepta[123-gh]phenanthro[9101-jkl]hexahelicene dichloromethane solvateExperimental 3D Coordinates
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CCDC 2021692: Experimental Crystal Structure Determination

2020

Related Article: Zijie Qiu, Sobi Asako, Yunbin Hu, Cheng-Wei Ju, Thomas Liu, Loïc Rondin, Dieter Schollmeyer, Jean-Sébastien Lauret, Klaus Müllen, Akimitsu Narita|2020|J.Am.Chem.Soc.|142|14814|doi:10.1021/jacs.0c05504

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters1823-di-t-butyl-1213-ethenocyclohepta[uvwxyz]dibenzo[45:67]cyclohepta[123-gh]phenanthro[9101-jkl]hexahelicene tetrahydrofuran solvateExperimental 3D Coordinates
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CCDC 2004419: Experimental Crystal Structure Determination

2020

Related Article: Zijie Qiu, Sobi Asako, Yunbin Hu, Cheng-Wei Ju, Thomas Liu, Loïc Rondin, Dieter Schollmeyer, Jean-Sébastien Lauret, Klaus Müllen, Akimitsu Narita|2020|J.Am.Chem.Soc.|142|14814|doi:10.1021/jacs.0c05504

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters22'-(2'3'-bis(4-(t-butyl)phenyl)-[11':4'1''-terphenyl]-22''-diyl)-dinaphthalene chloroform solvateExperimental 3D Coordinates
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CCDC 2004420: Experimental Crystal Structure Determination

2020

Related Article: Zijie Qiu, Sobi Asako, Yunbin Hu, Cheng-Wei Ju, Thomas Liu, Loïc Rondin, Dieter Schollmeyer, Jean-Sébastien Lauret, Klaus Müllen, Akimitsu Narita|2020|J.Am.Chem.Soc.|142|14814|doi:10.1021/jacs.0c05504

Space GroupCrystallographyCrystal SystemCrystal Structure3-t-butyl-24-(4-t-butylphenyl)-2223-(metheno)dibenzo[bgh]benzo[67]pleiadeno[321-no]pleiadene chloroform solvateCell ParametersExperimental 3D Coordinates
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