New 4′-Functionalized 2,2′:6′,2′′-Terpyridines for Applications in Macromolecular Chemistry and Nanoscience
作者:Philip R. Andres、Ralph Lunkwitz、Gunther R. Pabst、Karlheinz Böhn、Daan Wouters、Stefan Schmatloch、Ulrich S. Schubert
DOI:10.1002/ejoc.200300327
日期:2003.10
The well-known reaction of 4′-chloro-2,2′:6′,2′′-terpyridine with alkoxide nucleophiles leads to 4′-functionalized2,2′:6′,2′′-terpyridines. This reaction allows the easy introduction of different functional groups onto the terpyridine at the 4′-position, i.e. opposite to the metal binding site, in one reaction step. Among the functionalized 2,2′:6′,2′′-terpyridines reported here are amines (including
An evaluation of the relationship between two- and three-dimensional packing in self-organised monolayers and bulk crystals of amphiphilic 2,2′:6′,2″-terpyridines
作者:Edwin C. Constable、H.-J. Güntherodt、Catherine E. Housecroft、Leo Merz、Markus Neuburger、Silvia Schaffner、Yaqiu Tao
DOI:10.1039/b608136c
日期:——
2,2â²:6â²,2â³-Terpyridine (tpy) ligands with pendant octadecyloxy, 4-octyloxyphenyl or 4-octadecyloxyphenyl substituents at the 4â²-position have been prepared and structurally characterised. Monolayers of the compounds have been prepared on highly oriented pyrolytic graphite (HOPG) and investigated by STM. The monolayer structure corresponds to the bulk crystal structure if the latter contains planar sheets. The tpy ligands are prochiral and form homochiral domains within the monolayer, providing a spectacular visual representation of the symmetry-breaking concomitant with the formation of a monolayer.