Precup-Blaga, F. S.; Garcia-Martinez, J. C.; Schenning, A. P. H. J.; Meijer, E. W. published the artcile< Highly Emissive Supramolecular Oligo(p-phenylene vinylene) Dendrimers>, Formula: C19H34O2, the main research area is preparation oligomeric phenylene vinylene guest polypropylene imine dendrimer host; luminescence oligomeric phenylene vinylene guest hydrogen bonded dendritic host.
π-Conjugated oligo(p-phenylene vinylene) (OPV) guest mols. for interaction with dendritic hosts were synthesized and fully characterized by NMR spectroscopy, MALDI-TOF-MS, elemental anal. and optical measurements. The binding properties of the five different OPV guests to a N,N-bis[(3-adamantyl ureido) propyl] methylamine host were studied. The guests that contained an aryl urea glycine spacer were bound with the highest association constant Subsequently, an adamantyl urea modified fifth generation poly(propylene imine) dendrimer was synthesized as a multivalent host which contains 32 N,N-bis[(3-adamantyl ureido) propyl] amine binding sites. Size exclusion chromatog. showed that 32 of the OPV guests strongly bind to the fifth generation adamantyl functionalized dendritic host. In the case of the supramol. dendritic host/guest system smooth homogeneous thin films could be obtained by spin coating. The dendritic guest-host complexes showed a significantly higher emission upon binding then that of the individual mols. due to the three-dimensional orientation of the OPV guest mols. In the solid state, this enhancement in luminescence was a factor of 10. The π-conjugated oligomers are less aggregated in the supramol. assemblies presumably because of a shielding effect of the bulky adamantyl units present in the hosts.
Journal of the American Chemical Society published new progress about Absorption. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.
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