A rigid metallohexameric macrocycle composed of endo- and exo-cyclic bisterpyridine-metal complexes

Autor:	Sinan Li, Pingshan Wang, Carol D. Shreiner, Charles N. Moorefield, Rajarshi Sarkar, George R. Newkome
Rok vydání:	2011
Předmět:	Chemistry Stereochemistry General Chemistry Metallacycle Catalysis Ion Metal chemistry.chemical_compound Monomer visual_art Polymer chemistry Materials Chemistry visual_art.visual_art_medium Moiety Terpyridine
Zdroj:	New Journal of Chemistry. 35:2130
ISSN:	1369-9261 1144-0546
Popis:	Synthesis of terpyridine-based building blocks has allowed the self-assembly of a nanosized metallomacrocycle with precisely positioned, peripheral metal complexes. Construction of the precursors included the assembly of a heteroleptic bisterpyridine-Ru(II) complex possessing a diiodoaryl moiety that was subsequently reacted with two equivalents of 4′-ethynyl-2,2′ : 6′,2′′-terpyridine via a Pd(0)-catalyzed Sonagashira coupling, to generate the requisite monomer with two, 120°-juxtaposed metal coordination sites. Addition of one equivalent of Fe(II) to one equivalent of the bisligand afforded the metallocycle with 12 metals [6 internal Fe(II) ions and 6 external Ru(II) ions] measuring ca. 7 nm in diameter.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2bf1becf80943ffa2a527d08661adcab https://doi.org/10.1039/c1nj20195f Zobrazit plný text záznamu