1268602-29-4Relevant academic research and scientific papers
Synthesis and Photochromism of Chloro- and tert-Butyl-Functionalized Terarylene Derivatives for Surface Deposition
Dela Cruz Calupitan, Jan Patrick,Galangau, Olivier,Guillermet, Olivier,Coratger, Roland,Nakashima, Takuya,Rapenne, Gwéna?l,Kawai, Tsuyoshi
, p. 2451 - 2461 (2017)
In the field of extreme miniaturization of electronic devices, it is necessary to study candidate molecules at the single-molecular level by scanning tunneling microscopy (STM). This necessitates molecules with specific functionalizations to control molec
Self-Contained Photoacid Generator Triggered by Photocyclization of Triangle Terarylene Backbone
Nakashima, Takuya,Tsuchie, Kenta,Kanazawa, Rui,Li, Ruiji,Iijima, Shunsuke,Galangau, Olivier,Nakagawa, Hisako,Mutoh, Katsuya,Kobayashi, Yoichi,Abe, Jiro,Kawai, Tsuyoshi
, p. 7023 - 7026 (2015)
We herein propose a new type of efficient neutral photoacid generator. A photoinduced 6π-electrocyclization reaction of photochromic triangle terarylenes triggers subsequent release of a Br?nsted acid, which took place from the photocyclized form. A H-atom and its conjugate base were introduced at both sides of a 6π-system to form the self-contained photoacid generator. UV irradiation to the 6π-system produces a cyclohexa-1,3-diene part with a H-atom and a conjugate base on the sp3 C-atoms at 5- and 6-positions, respectively, which spontaneously release an acid molecule quantitatively forming a polyaromatic compound. A net quantum yield of photoacid generation as high as 0.52 under ambient conditions and a photoinitiated cationic polymerization of an epoxy monomer are demonstrated.
Intramolecular hydrogen bonding in a triangular dithiazolyl-azaindole for efficient photoreactivity in polar and nonpolar solvents
Fukumoto, Sayo,Nakashima, Takuya,Kawai, Tsuyoshi
scheme or table, p. 5047 - 5053 (2011/10/09)
A triangular dithiazolyl-azaindole derivative has been synthesized as a highly sensitive photochromic molecule. 2,4-Dimethyl-5-phenylthiazol derivative 1a, and a reference compound, 5-methyl-2-phenylthiophene derivative 2a, both showed photochromism with
Photon-quantitative reaction of a dithiazolylarylene in solution
Fukumoto, Sayo,Nakashima, Takuya,Kawai, Tsuyoshi
experimental part, p. 1565 - 1568 (2011/04/15)
Ready for action: An excellent quantum yield was observed for a photocoloration reaction of a photochromic molecule based on a triangular terarylene structure. The molecule is brought into a conformation favorable for photocyclization by multiple intramolecular interactions, including CHi-N hydrogen bonding and Si-N and CHi-π interactions (see picture).
