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Coordination chemistry of azamacrocycles functionalised with N-pendant pyridyl, bipyridyl and terpyridyl arms
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Sheldon, Philippa (1994) Coordination chemistry of azamacrocycles functionalised with N-pendant pyridyl, bipyridyl and terpyridyl arms. PhD thesis, University of Warwick.
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Official URL: http://webcat.warwick.ac.uk/record=b1416758~S1
Abstract
This thesis describes the synthesis and characterisation of a series of new azamacrocyclic ligands (L1-L3, L1O, L11, L14, L16-Ll9), which have been N-functionalised with pendant pyridylmethyl- (pyCH2-), bipyridylmethyl(bipyCH2-) and terpyridylmethyl- (terpyCH2-) arms. Some of the coordination chemistry of these ligands with transition metal ions is reported. A sexidentate tris(2,2'-bipyridyl) chelating ligand, 1,4, 7-tris(2,2'-bipyridyl-5'-ylmethyl)-1,4,7-triazacyclononane (Ll) has been developed, and the crystal structures of the mononuclear complexes [M(L1H)]3+ (M = Ru, Cu) are reported. In [M(L1H)]3+, the azamacrocyclic nitrogen atoms are non-coordinating to M, but have a high affinity for a single proton trapped in the macrocyclic cavity. An analogous nonadentate ligand (Ll7) has been developed based on 9N3 with three N-pendant terpyCH2- arms, and complexes of Ll7 with Eu(III) and La(III) are reported. The complex [Eu(L17H)](PF6)4 is found to be strongly fluorescent in acetonitrile and methanol/water solution. Ligands with potential use as fluorescent pH and transition metal ion sensors have been developed by reacting the azamacrocyclic N-pendant bipyCH2 arms of LLL3, LlO and Lll with cis-[Ru(bipYnCI2] to give macrocycles with up to four attached [Ru(bipY)3]2+ groups (LS-L7, L12, L13).
Item Type: | Thesis (PhD) | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Library of Congress Subject Headings (LCSH): | Macrocyclic compounds | ||||
Official Date: | 1994 | ||||
Dates: |
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Institution: | University of Warwick | ||||
Theses Department: | Department of Chemistry | ||||
Thesis Type: | PhD | ||||
Publication Status: | Unpublished | ||||
Supervisor(s)/Advisor: | Moore, Peter, 1939- | ||||
Extent: | xvi, 197 leaves | ||||
Language: | eng |
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