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Showing 1 to 5 of 5 for “"extended conjugation"”.
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Synthesis, characterization and properties of rigid macromolecules with extended conjugation, using palladium-catalyzed alkynylated polyhaloarenes.
A synthetic approach to macromolecules of acetylenic arrays and luminescent properties is proposed and the execution of initial steps is described. Palladium-catalyzed coupling of 1,3,5-triiodobenzene with trimethylsilylbuta-1,3-diyne, trimethylsilylocta-1,3,5,7-tetrayne, and …
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Investigations of highly conjugated macrocycles and polymers for aggregation and chemical sensing
… goal of developing Schiff base macrocycles with conjugation extended over multiple aromatic rings, new phenanthrene and triphenylene-containing bis(salicylates) were synthesized. A convenient route to 3,6,9,10-tetraalkoxy-2,7-diiodophenanthrene was developed. This compound has been found to be a …
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Electrically conductive porous catecholate metal-organic frameworks
… two-dimensional (2D) conductive MOFs with extended π-d conjugation throughout the layers. Chapter 2 challenges the common assumption that this extended conjugation is the primary pathway for conduction in these materials: we explored MOFs based on the lanthanides (Ln) and H₆HOTP, Ln₁+ₓHOTP …
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Photophysical Studies of Beta Phase Formation in Poly(9,9-di-n-alkylfluorenes)
… planarise the polymer backbone, leading to the extended conjugation length that characterises the beta phase. Excitation spectra show that the beta phase can occur reversibly in dilute solution, most likely by chain folding leading to side chain interactions. The presence of side chain …
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Novel Conjugate Additions and Cyclizations on Multiyne Systems
… thesis consists of seven chapters focusing on extended conjugation addition chemistry and different modes of cyclization to synthesize important and unique heterocycles including natural products and biomolecules. Chapter 1 provides a novel route for the synthesis of 4-pyrones with broader …