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Dive into the research topics where Michihiro Shirakawa is active.

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Featured researches published by Michihiro Shirakawa.


Chemical Communications | 2005

Organogel of an 8-quinolinol platinum(II) chelate derivative and its efficient phosphorescence emission effected by inhibition of dioxygen quenching.

Michihiro Shirakawa; Norifumi Fujita; Takahiro Tani; Kenji Kaneko; Seiji Shinkai

A newly synthesized 8-quinolinol platinum(II) chelate derivative gelates various organic solvents, and the gel formed shows unique thermo- and solvatochromism of visible and phosphorescent colour in response to a sol-gel phase transition and possesses an attractive ability to inhibit dioxygen quenching of excited triplet states.


Angewandte Chemie | 2006

Spontaneous Colorimetric Sensing of the Positional Isomers of Dihydroxynaphthalene in a 1D Organogel Matrix

Pritam Mukhopadhyay; Yuya Iwashita; Michihiro Shirakawa; Shin-ichiro Kawano; Norifiimi Fujita; Seiji Shinkai


Journal of the American Chemical Society | 2005

A Stable Single Piece of Unimolecularly π-Stacked Porphyrin Aggregate in a Thixotropic Low Molecular Weight Gel: A One-Dimensional Molecular Template for Polydiacetylene Wiring up to Several Tens of Micrometers in Length

Michihiro Shirakawa; Norifumi Fujita; Seiji Shinkai


Journal of Organic Chemistry | 2003

Hydrogen-Bond-Assisted Control of H versus J Aggregation Mode of Porphyrins Stacks in an Organogel System

Michihiro Shirakawa; Shin-ichiro Kawano; Norifumi Fujita; Kazuki Sada; Seiji Shinkai


Journal of the American Chemical Society | 2005

Creation of a mixed-valence state from one-dimensionally aligned TTF utilizing the self-assembling nature of a low molecular-weight gel.

Tatsuya Kitahara; Michihiro Shirakawa; Shin-ichiro Kawano; Uwe Beginn; Norifumi Fujita; Seiji Shinkai


Angewandte Chemie | 2010

Regulation of a real-time self-healing process in organogel tissues by molecular adhesives.

Pritam Mukhopadhyay; Norifumi Fujita; Akihiko Takada; Takanori Kishida; Michihiro Shirakawa; Seiji Shinkai


Journal of the American Chemical Society | 2003

[60]Fullerene-Motivated Organogel Formation in a Porphyrin Derivative Bearing Programmed Hydrogen-Bonding Sites

Michihiro Shirakawa; Norifumi Fujita; Seiji Shinkai


Chemistry: A European Journal | 2007

Organogels of 8-quinolinol/metal(II)-chelate derivatives that show electron-and light-emitting properties

Michihiro Shirakawa; Norifumi Fujita; Takahiro Tani; Kenji Kaneko; Masayoshi Ojima; Akihiko Fujii; Masanori Ozaki; Seiji Shinkai


Journal of the American Chemical Society | 2007

Polydiacetylene nanofibers created in low-molecular-weight gels by post modification : Control of blue and red phases by the odd-even effect in alkyl chains

Norifumi Fujita; Yoshimine Sakamoto; Michihiro Shirakawa; Masayoshi Ojima; Akihiko Fujii; Masanori Ozaki; Seiji Shinkai


Langmuir | 2005

Porphyrin-based organogels: control of the aggregation mode by a pyridine-carboxylic acid interaction.

Satoshi Tanaka; Michihiro Shirakawa; Kenji Kaneko; Masayuki Takeuchi; Seiji Shinkai

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