The Newborn Surface of Dull Metals in Organic Synthesis. Bismuth-Mediated Solvent-Free One-Step Conversion of Nitroarenes to Azoxy- and Azoarenes
摘要:
When milled together with bismuth shots, nitroarenes are readily converted to azoxy- and/or azoarenes depending on substrates and conditions employed. Simple extraction with organic solvent followed by evaporation of the resulting dark pasty solid gave the product in good yield.
Electro-optically concealable vehicle instrument panel and method of constructing the same
申请人:Ergom Automotive S.p.a.
公开号:EP1372023A2
公开(公告)日:2003-12-17
An instrument panel of a vehicle provided with a rigid front cover panel for protecting the underlying instruments; the cover panel is electro-optical and includes: two transparent conductive layers, a liquid crystal-based material and a coloring agent that is diffused in the liquid crystal-based material, so that the colouring agent can conceal the underlying instruments when inactive and show them during excitation.
The disclosure provides for a phase compensation film that includes nano-particles of a cross-linked polymer with a largest dimension of a quarter of a wavelength of visible light or less, and a liquid crystal substance imbibed substantially throughout the cross-linked polymer of the nano-particles to provide a phase compensation value for a pixel of a liquid crystal display.