✦ LIBER ✦

Photochromic properties of tetrakis(2-methylthien-3-yl)ethene and its tetrakis(methylthio) derivative

✍ Scribed by Hiroshi Ikeda; Azusa Sakai; Akinori Kawabe; Hayato Namai; Kazuhiko Mizuno

Publisher: Elsevier Science
Year: 2008
Tongue: French
Weight: 540 KB
Volume: 49
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2008.05.080

No coin nor oath required. For personal study only.

✦ Synopsis

The photoreaction of tetrakis(2-methylthien-3-yl)ethene (1a) and its tetrakis(methylthio) derivative 1b was investigated in the context of a potentially new chromic system responsive to both photoexcitation and electron transfer. UV irradiation of 1 at low conversion leads to production of its cyclic isomer 2 while 2 returns to 1 upon vis irradiation, representative of facile photochromic behavior. In contrast, UV irradiation at high conversion transforms 1b to rearranged product 3b via the intermediacy of 2b.

📜 SIMILAR VOLUMES

ChemInform Abstract: Synthesis and Fluor

ChemInform Abstract: Synthesis and Fluorescence Emission Properties of 1,3,6,8-Tetrakis(9H-fluoren-2-yl)pyrene Derivative.

✍ Jian-yong Hu; Hidetaka Hiyoshi; Jung-Hee Do; Takehiko Yamato 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 27 KB

ChemInform Abstract: Synthesis and Prope

ChemInform Abstract: Synthesis and Properties of 5-(4,6-Diphenyl-2-pyrimidin-2-yl)-1,2,4-triazolin-3-thione and Its Derivatives.

✍ G. MEKUSKIENE; P. GAIDELIS; P. VAINILAVICIUS 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

Synthesis and Properties of 5-(4,6-Diphenyl-2-pyrimidin-2-yl)-1,2,4triazolin-3-thione and Its Derivatives. -The title compound (IV) is synthesized by alkali-mediated cyclization of acylthiosemicarbazide (III) and transformed into pyrimidine-substituted thiazolotriazoles (VIII). Some of the synthesi

Synthesis and characterization of copper

Synthesis and characterization of copper(I) derivatives with nitrogen-donor ligands—II. Dihydridobis- and tetrakis(1H-pyrazol-1-YL)borate. The X-ray cyrstal structure of [pz2B-(μ-pz)2-Cu(PPh3)2]

✍ Patrizio Cecchi; Bruna Bovio; Giancarlo Gioia Lobbia; Claudio Pettinari; Dante L 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 733 KB

Syntheses, Characterization and Reactivi

Syntheses, Characterization and Reactivity of Iron(II), Nickel(II), Copper(II) and Zinc(II) Complexes of the Ligand N,N,N′,N′-Tetrakis(2-pyridylmethyl)benzene-1,3-diamine (1,3-tpbd) and Its Phenol Derivative 2,6-Bis[bis(2-pyridylmethyl)amino]-p-cresol (2,6-tpcd)

✍ Simon Foxon; Jing-Yuan Xu; Sabrina Turba; Michael Leibold; Frank Hampel; Frank W 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 391 KB 👁 1 views