interpenetrated vs noninterpenetrated frameworks and their selective removal of cationic dyes
Bikash Garai (Avtor), Dinesh Shetty (Avtor), Tina Škorjanc (Avtor), Felipe Gándara (Avtor), Nawavi Naleem (Avtor), Sabu Varghese (Avtor), Sudhir Kumar Sharma (Avtor), Maria Baias (Avtor), Ramesh Jagannathan (Avtor), Mark Anthony Olson (Avtor)

Povzetek

A bowl-shaped calix[4]arene with its exciting host–guest chemistry is a versatile supramolecular building block for the synthesis of distinct coordination cages or metal–organic frameworks. However, its utility in the synthesis of crystalline covalent organic frameworks (COFs) remains challenging, presumably due to its conformational flexibility. Here, we report the synthesis of a periodic 2D extended organic network of calix[4]arenes joined by a linear benzidine linker via dynamic imine bonds. By tuning the interaction among neighboring calixarene units through varying the concentration in the reaction mixture, we show the selective formation of interpenetrated (CX4-BD-1) and non-interpenetrated (CX4-BD-2) frameworks. The cone-shaped calixarene moiety in the structural backbone allows for the interweaving of two neighboring layers in CX4-BD-1, making it a unique example of interpenetrated 2D layers. Due to the high negative surface charge from calixarene units, both COFs have shown high performance in charge-selective dye removal and an exceptional selectivity for cationic dyes irrespective of their molecular size. The charge distribution of the COFs and the resulting selectivity for the cationic dyes were further investigated using computational methods.

Ključne besede

dyes;pigments;covalent organic frameworks;adsorption;layers;chemical structure;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UNG - Univerza v Novi Gorici
UDK: 54
COBISS: 55367939 Povezava se bo odprla v novem oknu
ISSN: 0002-7863
Št. ogledov: 1477
Št. prenosov: 0
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

URN: URN:SI:UNG
Strani: str. 3407-3415
Letnik: ǂVol. ǂ143
Zvezek: ǂiss. ǂ9
Čas izdaje: 2021
DOI: 10.1021/jacs.0c12125
ID: 12653797
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, interpenetrated vs noninterpenetrated frameworks and their selective removal of cationic dyes
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, lecture at Ninth Annual International Workshop on Advanced Materials (IWAM 2018), Al Hamra Convention Center, Ras Al Khaimah, UAE, February 18, 2018
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