699119-05-6Relevant articles and documents
Pushing the synthetic limit: Polyphenylene dendrimers with "exploded" branching units - 22-nm-diameter, monodisperse, stiff macromolecules
Andreitchenko, Ekaterina V.,Clark Jr., Christopher G.,Bauer, Roland E.,Lieser, Guenter,Muellen, Klaus
, p. 6348 - 6354 (2005)
(Figure Presented) Structural perfection up to the fifth generation of a polyphenylene dendrimer has been achieved by inserting p-terphenyl spacers into the arms of each branching unit (see picture). The stiff, monodisperse macromolecules with diameters u
Synthesis and properties of metal-ligand complexes with endohedral amine functionality
Johnson, Amber M.,Moshe, Orly,Gamboa, Ana S.,Langloss, Brian W.,Limtiaco, John F. K.,Larive, Cynthia K.,Hooley, Richard J.
, p. 9430 - 9442 (2011/11/04)
A series of tetracationic M2L4 palladium-pyridyl complexes with endohedral amine functionality have been synthesized. The complexes were analyzed by NMR techniques (including Diffusion NMR and 2D NOESY), electrospray ionization (ESI) mass spectrometry, and X-ray crystallography. The solid state analysis shows a large change in crystal morphology upon introduction of the endohedral amine groups, caused by deleterious interactions between the amines and the triflate counterions from the coordination process. Combination of different ligands allows analysis of ligand exchange rates via NMR analysis, with half-lives on the order of 3 h, independent of the donor properties of the ligand. Self-sorting behavior is observed, with more electron-rich ligands being favored. The amine-containing and extended complexes are strongly fluorescent, giving quantum yields of up to 83%.