Yasunori Kawabe

Kyushu University

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CCDC 1465093: Experimental Crystal Structure Determination

The Cambridge Structural Database (2016)

Yogesh Kumar Maurya Takahiro Ishikawa Yasunori Kawabe Masatoshi Ishida Motoki Toganoh

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc1l5k2d

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Confusion and Neo‐Confusion: Corrole Isomers with an NNNC Core

Angewandte Chemie (2011)

Keitaro Fujino Yasuyuki Hirata Yasunori Kawabe Tatsuki Morimoto A. Srinivasan

Ein neuer Dreh: Drei Arten N-invertierter Corrolisomere (NCCs) wurden synthetisiert, und ihre Strukturen wurden mithilfe von Einkristall-Röntgenstrukturanalyse aufgeklärt. Die Position des invertierten Pyrrolrings im NCC wirkt sich stark auf die optischen Eigenschaften und die Anionenbindung aus. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

Confusion

Corrole

10.1002/ange.201100429

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Citations (41)

Synthesis and Reactivity of 5,10,15‐Triaryl Doubly N‐Confused Bilanes

Chemistry - A European Journal (2012)

Motoki Toganoh Sabapathi Gokulnath Yasunori Kawabe Hiroyuki Furuta

Abstract A series of 5,10,15‐tris(pentafluorophenyl) doubly N‐confused bilanes were synthesized in a stepwise manner with the aid of sterically demanding N‐protecting groups, in which the difference in reactivity between regular pyrrole and N‐confused pyrrole plays a crucial role in the synthetic strategy. Some doubly N‐confused bilanes were converted into porphyrinoids or a unique 2:2 copper(II) complex with a helical structure. In addition, the conformations and electronic states of the doubly N‐confused bilanes were investigated theoretically, giving fruitful information about the effect of confusion on the bilane skeleton.

Reactivity

Pyrrole

Confusion

Electronic effect

10.1002/chem.201103034

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Citations (23)

C-Fused Norrole: A Fused Corrole Isomer Bearing a N,C-Linked Bipyrrole Unit

The Journal of Organic Chemistry (2011)

Motoki Toganoh Yasunori Kawabe Hiroyuki Furuta

Oxidative cyclization of a doubly N-confused bilane afforded a N-confused N,C-linked corrole (N-confused norrole), which was readily oxidized to form a C-fused N,C-linked corrole (C-fused norrole).

Corrole

10.1021/jo2014017

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Citations (43)

Near-Infrared Phosphorescent Iridium(III) Benzonorrole Complexes Possessing Pyridine-based Axial Ligands

Inorganic Chemistry (2016)

Yogesh Kumar Maurya Takahiro Ishikawa Yasunori Kawabe Masatoshi Ishida Motoki Toganoh

Novel near-infrared phosphorescent iridium(III) complexes based on benzo-annulated N-linked corrole analogue (termed as benzonorrole) were synthesized. The structures of the complexes revealed octahedral coordination geometries involving an organometallic iridium–carbon bond with two external axial ligands. Interestingly, the iridium(III) complex exhibits near-infrared phosphorescence at room temperature at wavelengths beyond 900 nm. The significant redshift of the emission, as compared to the corrole congener, is originated from the ligand-centered triplet character. The fine-tuning of the photophysical properties of the complexes was achieved by introducing electron-donating and electron-withdrawing substituents on the axial pyridine ligands.

Corrole

10.1021/acs.inorgchem.6b00853

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Citations (24)

Unique Interaction between Directly Linked Laminated π Planes in the Benzonorrole Dimer

Angewandte Chemie (2012)

Motoki Toganoh Yasunori Kawabe Hidemitsu Uno Hiroyuki Furuta

Ganz verschieden: Zwei neue Benzonorrol-Dimere mit direkter Verknüpfung weisen kleine Ebenenabstände unter 3.5 Å auf. Doch während in der oxidierten Form (links) eine starke π-π-Wechselwirkung vorliegt, war diese in der reduzierten Form (rechts) vernachlässigbar – trotz des kleineren π-π-Abstands.

10.1002/ange.201203712

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Citations (13)

CCDC 1465092: Experimental Crystal Structure Determination

The Cambridge Structural Database (2016)

Yogesh Kumar Maurya Takahiro Ishikawa Yasunori Kawabe Masatoshi Ishida Motoki Toganoh

10.5517/ccdc.csd.cc1l5k1c

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Citations (0)

Confusion and Neo‐Confusion: Corrole Isomers with an NNNC Core

Angewandte Chemie International Edition (2011)

Keitaro Fujino Yasuyuki Hirata Yasunori Kawabe Tatsuki Morimoto A. Srinivasan

More confused than ever: Three types of N-confused corrole isomers (NCCs) were synthesized, and the structures of these isomers were revealed by single-crystal X-ray crystallography. The position of the confused pyrrole ring in the NCC has a pronounced effect on optical and anion-binding properties. Detailed facts of importance to specialist readers are published as "Supporting Information". Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

Confusion

Corrole

Pyrrole

10.1002/anie.201100429

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Citations (102)

Unique Interaction between Directly Linked Laminated π Planes in the Benzonorrole Dimer

Angewandte Chemie International Edition (2012)

Motoki Toganoh Yasunori Kawabe Hidemitsu Uno Hiroyuki Furuta

Direct link: Two directly linked benzonorrole dimers were prepared and characterized, and both have short interplane distances less than 3.5 Å. While a strong π–π interaction was recognized in the oxidized form (left), only a negligible π–π interaction was observed in the reduced form (right) in spite of its shorter π–π distance. Detailed facts of importance to specialist readers are published as "Supporting Information". Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.

Content (measure theory)

10.1002/anie.201203712

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Citations (44)