Platinum(II) complexes bearing various alkyne–pyrene, alkyne–4′-terpyridine and alkyne–dibutoxyphenylacetylide–terpyridine units were constructed in a step-by-step procedure based on copper-promoted cross-coupling reactions with preconstructed modules; formation of bis(ligand) complexes of Fe(II) and Zn(II) by binding of the pendent terpyridine units provided heterotrinuclear derivatives, all of which exhibit highly structured absorption features in solution and display a rich electrochemistry due to the presence of various redox active modules.
The preparation and some properties of substituted phenylene-ethynylene and phenylenebuta-1,3-diynylene polymers
作者:Andrew Pelter、D. Elfyn Jones
DOI:10.1039/a908642k
日期:——
Syntheses are described for the preparation of a variety of diynes which are converted to high molecular weight substituted arylenebuta-1,3-diynylene polymers by oxidative coupling and to high molecular weight substituted arylene-ethynylene polymers by Pd(II) catalysed cross coupling reactions. The products tend to be insoluble in normal organic solvents. Doping with ferric chloride produces significant