Σύνθεση και χαρακτηρισμός συμπλόκων του Ru (II) με τροποποιημένες τερπυριδίνες (Master thesis)

Γκίκας, Ανδρέας


This study describes the synthesis and the characterization of ligands diethyl 2-(4-([2,2':6',2''-terpyridin]-4'-yl)benzyl)-2-acetamidomalonate (mapatrpy) and 3-(4-([2,2':6',2''-terpyridin]-4'-yl)phenyl)-2-aminopropanoic acid (apaptrpy) as well the synthesis and the characterization of the bis – tridentate ruthenium (II) complexes [RuII(L)(mapatrpy)](PF6)2 {L = 2,2':6',2''-terpyridine (trpy), 4'-phenyl-2,2':6',2''-terpyridine (ptrpy), 4'-(p-tolyl)-2,2':6',2''-terpyridine (mptrpy) or 2-(4-([2,2':6',2''-terpyridin]-4'-yl)benzyl)-2-acetamidomalonate (mapatrpy)} and [RuII(L΄)(apaptrpy)](PF6)2 {L΄ = 2,2':6',2''-terpyridine (trpy), 4'-phenyl-2,2':6',2''-terpyridine (ptrpy), 4'-(p-tolyl)-2,2':6',2''-terpyridine (mptrpy) or 3-(4-([2,2':6',2''-terpyridin]-4'-yl)phenyl)-2-aminopropanoic acid (apaptrpy)}.Moreover, the rotational isomers about Cα - Cβ bond of ligand apaptrpy and of the complexes [RuII(trpy)(apaptrpy)](PF6)2 and [RuII(apaptrpy)2](PF6)2 were studied. It was found, that the percentage of h rotamer for the complex [RuII(apaptrpy)2](PF6)2 was almost doubled in comparison with the free ligand. These results explains the significant shift of the signals that are attributed to the protons of Cβ at about 0.6 ppm, compared to the same signals of protons of the heteroleptic complexes of [RuII(trpy)(apaptrpy)](PF6)2, [RuII(ptrpy)(apaptrpy)](PF6)2 και [RuII(mptrpy)(apaptrpy)](PF6)2.This fact is propably the result of oligomeric structures of the type [Ru(apaptrpy)2]n in solution assisted from hydrogen bonds between the carboxyl and amino groups in both ends of the complex.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας
Subject classification: Σύμπλοκες ενώσεις
Keywords: Σύμπλοκα,Τερπυριδίνη
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/28167
Appears in Collections:Διατριβές Μεταπτυχιακής Έρευνας (Masters)

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