NDLI: Supramolecular assembly of sandwich-type heteroleptic lanthanum (porphyrinato)(phthalocyaninates)

Content Provider	Springer Nature Link
Author	Birin, K. P. Gorbuva, Yu. G. Tsivadze, A. Yu.
Copyright Year	2011
Abstract	Concentration and cation-induced supramolecular assembly of heteroleptic double- and triple-decker [An$_{4}$P]La[(15C5)$_{4}$Pc] and [An$_{4}$P]La[(15C5)$_{4}$Pc]La[An$_{4}$P] lanthanum complexes (An$_{4}$P$^{2−}$ = 5,10,15,20-tetra-(4-methoxyphenyl)-porphyrinate dianion and(15C5)$_{4}$Pc$^{2−}$ = tetra-(15-crown-5)-phthalocyaninate dianion) is studied. Double-decker [An$_{4}$P]La[(15C5)$_{4}$Pc] complex is shown to be susceptible to effective concentration-driven assembly determined by the deviation from the Beer-Lambert-Bouguer law up to a concentration of 10$^{−6}$ M. Triple-decker [An$_{4}$P]La[(15C5)$_{4}$Pc]La[An$_{4}$P] complex is not inclined to the concentration-driven assembly up to a concentration of 10$^{−4}$ M. The interaction between the receptors and sodium or potassium salt is determined by the receptor structure and independent of the salt anion. When interacting with potassium salts, the double-decker complex can form a supramolecular cofacial dimer. In the case of the triple-decker complex, the crown-phthalocyanine deck of the molecule is sterically blocked, and supramolecular aggregates do not form. Sodium cations can be encapsulated in the crown ether rings of both receptors.
Starting Page	417
Ending Page	423
Page Count	7
File Format	PDF
ISSN	20702051
Journal	Protection of Metals
Volume Number	47
Issue Number	4
e-ISSN	2070206X
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2011-07-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Industrial Chemistry/Chemical Engineering Materials Science Characterization and Evaluation of Materials Inorganic Chemistry Metallic Materials Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Surfaces, Coatings and Films Materials Chemistry Metals and Alloys

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