1'-Substituted-thioxanthene-9-spiro-4'-piperidine derivatives and the
申请人:Imperial Chemical Industries Limited
公开号:US04001418A1
公开(公告)日:1977-01-04
The disclosure relates to thioxanthene derivatives which possess analgesic activity, to processes for the manufacture of said derivatives and to pharmaceutical compositions containing them. Typical of the thioxanthene derivatives disclosed is 4-acetoxy-6-chloro-1'-methylthioxanthene-9-spiro-4'-piperidine.
Light-Driven Rotary Molecular Motors on Gold Nanoparticles
作者:Michael M. Pollard、Matthijs K. J. ter Wiel、Richard A. van Delden、Javier Vicario、Nagatoshi Koumura、Coenraad R. van den Brom、Auke Meetsma、Ben L. Feringa
DOI:10.1002/chem.200800814
日期:——
We report the synthesis of unidirectional light-drivenrotarymolecularmotors based on chiral overcrowded alkenes and their immobilisation on the surface of gold nanoparticles through two anchors. Using a combination of (1)H and (13)C NMR, UV/Vis and CD spectroscopy, we show that these motors preserve their photochemical and thermal behaviour after they have been attached to gold nanoparticles. Furthermore