Long-lived and highly conducting ion channels formed by lipophilic ethylenediamine palladium(ii) complexes

Autor:	Christine C. Tong, Thomas M. Fyles
Rok vydání:	2007
Předmět:	Range (particle radiation) Period (periodic table) Inorganic chemistry chemistry.chemical_element Conductance Ethylenediamine General Chemistry Catalysis Crystallography chemistry.chemical_compound Membrane chemistry Materials Chemistry Acetonitrile Ion channel Palladium
Zdroj:	New J. Chem.. 31:655-661
ISSN:	1369-9261 1144-0546
Popis:	The synthesis of a lipophilic ethylenediamine palladium(II) complex and its activity in planar bilayer membranes are reported. In acetonitrile solution containing one equivalent of 4,4-bipyridine the complex forms the expected metallosupramolecular tetrameric square. The same mixture provokes transmembrane conductance of three types: an initial period of erratic behavior, occasional short channel-like openings, and frequent very long-lived and highly conducting channel openings. The apparent pore radii of both short and long openings vary continuously over the range of 0.1–1.5 nm, and long-lived pores will form in the absence of 4,4′-bipyridine. The long-lived channels are presumed to involve an extended aggregate of the palladium complex and lipids surrounding a toroidal pore in the membrane.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cf43c51c08ce95d08dd31bcc8e1a2845 https://doi.org/10.1039/b610660a Zobrazit plný text záznamu