Journal ArticleDOI
Development of supramolecular structure through alkylation of pendant pyridyl functionality
Edwin C. Constable,Catherine E. Housecroft,Markus Neuburger,David Phillips,Paul R. Raithby,Emma R. Schofield,Emma Sparr,Derek A. Tocher,Margareta Zehnder,Yves C. Zimmermann +9 more
TLDR
The complex 12+ as discussed by the authors is a metal-containing analogue of 4,4′-bipyridine and undergoes N-alkylation reactions with a variety of alkylating agents to give more highly functionalised tetracationic complexes which may be termed metalloviologens.Abstract:
The complex 12+ which has two pendant 4-pyridyl substituents may be viewed as a metal-containing analogue of 4,4′-bipyridine. The complex undergoes N-alkylation reactions with a variety of alkylating agents to give more highly functionalised tetracationic complexes which may be termed metalloviologens by analogy with viologens. These complexes may also be prepared by alkylation of the free ligands and subsequent coordination of the pendant quaternised ligand. Structural studies have established that the N-alkylated complexes possess the correct spatial characteristics for the preparation of metallocycles analogous to known cyclic bis(4,4′-bipyridinium) species which possess useful molecular recognition properties.read more
Citations
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The spin-states and spin-transitions of mononuclear iron(II) complexes of nitrogen-donor ligands
TL;DR: A survey of mononuclear iron(II) complexes with heterocyclic N-donor ligation is presented in this paper, where a brief introduction to spin-crossover chemistry and low-temperature spin-trapping is provided, since many of these compounds undergo thermal spintransitions upon cooling or heating.
Journal ArticleDOI
Expanded ligands : an assembly principle for supramolecular chemistry
TL;DR: In this article, expanded ligands incorporate metal-containing groups as spacers between metal-binding domains, and they are analyzed based on {M(tpy) 2 } (tpy = 2,2′:6′,2″-terpyridine) scaffolds.
Journal ArticleDOI
Cobalt complexes of terpyridine ligand: crystal structure and photocleavage of DNA.
Ramasamy Indumathy,Srinivasan Radhika,Mookandi Kanthimathi,Thomas Weyhermüller,Balachandran Unni Nair +4 more
TL;DR: Results of DNA cleaving experiments reveal that complex 2 efficiently cleaves DNA under photolytic conditions while complex 1 does not cleave DNA under similar conditions.
Journal ArticleDOI
Recent developments in the d-block metallo-supramolecular chemistry of polypyridyls
TL;DR: In this paper, the use of polypyridyl ligand derivatives for the construction of metallo-supramolecular entities from the beginning of this contemporary area of research is described.
Journal ArticleDOI
Expanded ligands: bis(2,2′:6′,2″-terpyridine carboxylic acid)ruthenium(II) complexes as metallosupramolecular analogues of dicarboxylic acids
Edwin C. Constable,Emma L. Dunphy,Catherine E. Housecroft,Markus Neuburger,Silvia Schaffner,Frank Schaper,Frank Schaper,Stuart Robert Batten +7 more
TL;DR: The synthesis and structural characterisation of ruthenium(ii) complexes of 2,2':6',2''-terpyridine-4'-carboxylic acid and 4,4'-difunctionalised {Ru(tpy)(2)} units are described and three representative compounds have been structurally characterised.
References
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