Adsorption and aggregation of a cationic cyanine dye on layered clay minerals
Source abstract
Abstract
Abstract The adsorption and aggregation of a cationic cyanine dye, 1,1′-diethyl-2,2′-cyanine (pseudoisocyanine; abbreviated as PIC), on various clays have been investigated. The PIC formed J-aggregates on Na-montmorillonite and synthetic Na-fluor-tetrasilicic mica (TSM), while they distributed molecularly on synthetic Na-saponite and synthetic Na-hectorites. The particle size of the clays was considered to be a dominant factor to control the aggregation of PIC. The J-aggregate formation was suppressed when tetramethylammonium–montmorillonite was employed as a host material. Ethylene glycol in the suspension was also responsible for the suppression of J-aggregate formation of PIC. Thus, the aggregation of PIC was effectively controlled by the species surrounding the PIC cations as well as the nature of clays.
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Research context
OpenAlex topics: Porphyrin and Phthalocyanine Chemistry · Spectroscopy and Quantum Chemical Studies · Photochemistry and Electron Transfer Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
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