ELECTROCHROMIC COMPOUNDS AND OPTICAL ARTICLES CONTAINING THEM
Electrochromic compounds and optical articles containing them The present invention relates to a group of novel electrochromic compounds. More specifically, it relates to electrochromic compounds comprising one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
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Paragraph 0258
(2018/07/31)
Geometrically restricted intermediates in the self-assembly of an M12L24 cuboctahedral complex
The self-assembly of a cuboctahedral M12L24 complex is traced by time-dependent NMR spectroscopy and mass spectrometry. The metastable intermediate structures that exist during the self-assembly process are not a chaotic mixture of numerous species, but instead are geometrically restricted. Short-lived M8L16 (D4d) and relatively long-lived M9L18 (D3h) are fully characterized as major intermediates. Employing a ligand with a smaller bend angle (112°) allows these two species to be kinetically trapped and more clearly observed by NMR spectroscopy. X-ray crystallography shows that M9L18 has the framework topology predicted by geometric discussion.
Multicomponent supramolecular systems: self-organization in Coordination-Driven self-assembly
The self-organization of multicomponent supramolecular systems involving a variety of two-dimensional (2D) polygons and three-dimensional (3D) cages is presented. Nine self-organizing systems, SS1-SS9, have been studied. Each involve
Zheng, Yao-Rong,Yang, Hai-Bo,Ghosh, Koushik,Zhao, Liang,Stang, Peter J.
supporting information; experimental part
p. 7203 - 7214
(2010/03/05)
A novel synthesis of 4-aryl- and 4-heteroarylpyridines via diethyl(4-pyridyl)borane
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Ishikura,Ohta,Terashima
p. 4755 - 4763
(2007/10/02)
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