Probing the Interaction of [Ru(phen)2(dppz)]2+ with Single-Stranded DNAWhat Degree of Protection Is Required for Operation of the 'Light-Switch Effect'?

Autor:	John J. McGarvey, Philip L. Callaghan, James G. Hamilton, Colin G. Coates, and Monica Coletti
Rok vydání:	2000
Předmět:	Ligand Light switch Intercalation (chemistry) Resonance (chemistry) Surfaces Coatings and Films Crystallography chemistry.chemical_compound symbols.namesake chemistry Covalent bond Materials Chemistry symbols Physical and Theoretical Chemistry Luminescence Raman spectroscopy DNA
Zdroj:	The Journal of Physical Chemistry B. 105:730-735
ISSN:	1520-5207 1520-6106
DOI:	10.1021/jp002856w
Popis:	Time-resolved and steady-state luminescence and transient resonance Raman measurements have been carried out on the complex [Ru(phen)2dppz]2+ (1) in the presence of single-stranded (ss) DNA that is either covalently attached to or mixed in 1:1 ratio with the complex. The well-known enhancement of luminescence (the “light-switch” effect) exhibited by (1) when intercalated to double-stranded DNA is also observed in the presence of the single-stranded material, under conditions of covalent attachment or simple mixing. The evidence from both the luminescence and the transient Raman studies suggests that the enhancement need not necessarily reflect deep intercalation of the dppz ligand between the bases of the ss material.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b03db9cd21c0e8edae82c856e0eb6fa2 https://doi.org/10.1021/jp002856w Zobrazit plný text záznamu