Central vs. peripheral Ag(i) coordination in NS3-open chain and cage ligands

Autor:	P. August Schubiger, Roger Alberto, Jan M. Baumeister, Thomas A. Kaden, Kirstin Ortner, Bernhard Spingler
Rok vydání:	2002
Předmět:	Crystallography Chain (algebraic topology) Chemistry Ligand Metal ions in aqueous solution Solid-state Trigonal pyramidal molecular geometry General Chemistry Crystal structure Cage Ion
Zdroj:	Journal of the Chemical Society, Dalton Transactions. :4143-4151
ISSN:	1364-5447 1472-7773
DOI:	10.1039/b205287c
Popis:	A series of NS3-open chain and cage ligands were synthesised and their complexation behaviour towards Ag(I) and Cu(I) studied. Crystal structures show that all open chain ligands form complexes in which the four donor atoms of the ligands coordinate the metal ions in a trigonal pyramidal geometry. For the NS3-cages, however, the ions are not in the centre of the cage, but show peripheral coordination resulting in polymeric crystal structures. The new NS3-aromatic cage ligand 18 binds Ag(I) peripherally giving a polymeric structure in the solid state and fluxional behaviour in solution. NMR evidence for equally populated central and peripheral coordination sites is coherent with results from DFT calculations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::35349b80a9f6b77d82a660403d340cea https://doi.org/10.1039/b205287c Zobrazit plný text záznamu