Please use this identifier to cite or link to this item: https://doi.org/10.1021/jacs.8b07450
Title: Layer-Stacking-Driven Fluorescence in a Two-Dimensional Imine-Linked Covalent Organic Framework
Authors: Albacete, Pablo
Martinez, Jose I
Li, Xing 
Lopez-Moreno, Alejandro
Mena-Hernando, Soda
Platero-Prats, Ana E
Montoro, Carmen
Loh, Kian Ping 
Perez, Emilio M
Zamora, Felix
Keywords: Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry
HIGHLY CRYSTALLINE
CONSTRUCTION
HYDROGEN
LUMINESCENT
ABSORPTION
STABILITY
REMOVAL
Issue Date: 10-Oct-2018
Publisher: AMER CHEMICAL SOC
Citation: Albacete, Pablo, Martinez, Jose I, Li, Xing, Lopez-Moreno, Alejandro, Mena-Hernando, Soda, Platero-Prats, Ana E, Montoro, Carmen, Loh, Kian Ping, Perez, Emilio M, Zamora, Felix (2018-10-10). Layer-Stacking-Driven Fluorescence in a Two-Dimensional Imine-Linked Covalent Organic Framework. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 140 (40) : 12922-12929. ScholarBank@NUS Repository. https://doi.org/10.1021/jacs.8b07450
Abstract: Copyright © 2018 American Chemical Society. Schiff-condensation reactions carried out between 1,6-diaminopyrene (DAP) and the tritopical 1,3,5 benzenetricarbaldehyde (BTCA) or 2,4,6-triformylphloroglucinol (TP) ligands give rise to the formation of two-dimensional imine-based covalent-organic frameworks (COFs), named IMDEA-COF-1 and -2, respectively. These materials show dramatic layer-packing-driven fluorescence in solid state arising from the three-dimensional arrangement of the pyrene units among layers. Layer stacking within these 2D-COF materials to give either eclipsed or staggered conformations can be controlled, at an atomic level through chemical design of the building blocks used in their synthesis. Theoretical calculations have been used to rationalize the different preferential packing between both COFs. IMDEA-COF-1 shows green emission with absolute photoluminescence quantum yield of 3.5% in solid state. This material represents the first example of imine-linked 2D-COF showing emission in solid state.
Source Title: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
URI: https://scholarbank.nus.edu.sg/handle/10635/167671
ISSN: 0002-7863
1520-5126
DOI: 10.1021/jacs.8b07450
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