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Pyrene Tetraphosphonate‐Based Metal‐Organic Framework: Structure and Photoluminescence
Author(s) -
Firmino Ana D. G.,
Mendes Ricardo F.,
Ananias Duarte,
Figueira Flávio,
Tomé João P. C.,
Rocha João,
Almeida Paz Filipe A.
Publication year - 2020
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202000726
Subject(s) - chemistry , photoluminescence , pyrene , ligand (biochemistry) , oxalic acid , metal organic framework , linker , metal , fluorescence , hydrothermal synthesis , hydrothermal circulation , hydrolysis , luminescence , inorganic chemistry , crystallography , nuclear chemistry , organic chemistry , chemical engineering , optoelectronics , biochemistry , physics , receptor , adsorption , quantum mechanics , computer science , optics , engineering , operating system
The synthesis of pyrene‐1,3,6,8‐tetrayltetrakis(phosphonic acid) ( H 8 ptp ) and its use in the preparation of a new isotypical family of Metal‐Organic Frameworks (MOF) using oxalic acid as secondary linker are reported. This new family, generally formulated as [Ln 2 (H 4 ptp)(ox)(H 2 O) 6 ] · 5H 2 O [where Ln 3+ = Ce 3+ ( 1Ce ), Pr 3+ ( 1Pr ), Nd 3+ ( 1Nd ), Sm 3+ ( 1Sm ), Eu 3+ ( 1Eu ), Gd 3+ ( 1Gd ), Tb 3+ ( 1Tb ) and Dy 3+ ( 1Dy )], were prepared under hydrothermal conditions and fully characterized using different techniques. The photoluminescence properties of 1Eu were studied, showing emission lifetimes of 0.27 ± 0.01 ms and 0.33 ± 0.01 ms at 294 K and 12 K, respectively. This family of materials, based on a fully hydrolysed tetraphosphonate pyrene ligand, constitutes the first example of MOFs obtained using this highly fluorescent organic ligand.