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Structure of a Luminescent MOF-2 Derivative with a Core of Zn(II)-Terephthalate-Isoquinoline and Its Application in Sensing of Xylenes

Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Ciudad de México 04510, Mexico
Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Ixtlahuaca Km. 14.5, Tlachaloya, Toluca, Estado de México 50200, Mexico
Departamento de Investigación y Desarrollo, Polioles S.A. de C.V. Km. 52.5 Parque Industrial Lerma, Estado de México 52000, Mexico
Authors to whom correspondence should be addressed.
Crystals 2020, 10(5), 344;
Received: 9 April 2020 / Revised: 22 April 2020 / Accepted: 24 April 2020 / Published: 27 April 2020
(This article belongs to the Special Issue Fluorescent Complexes)
A new blue photoluminescent 2D metal–organic framework, 1, with formula {[Zn22-BDC)2(iQ)2]} has been synthesized in a high yield under solvothermal conditions by reacting Zn(II) ions with 1,4-benzenedicarboxylic acid (H2BDC) and isoquinoline (iQ) in DMF. Compound 1 was thoroughly characterized by single-crystal X-ray diffraction, solid-state cross-polarization magic-angle spinning 13C NMR, X-ray powder diffraction, scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS), and thermoanalysis. The crystal structure of 1 showed interpenetrated 2D frameworks consisting of dinuclear paddle-wheel cores Zn2; moreover, this material possessed thermostability up to 310 °C. The CPMAS 13C-NMR spectrum of 1 is consistent with the symmetry of the crystal structure. Luminescence studies showed that 1 strongly enhances its fluorescence emission in the presence of xylene isomers with a pronounced selectivity to p-xylene. View Full-Text
Keywords: MOF-2 derivative; fluorescent sensing; xylene isomers MOF-2 derivative; fluorescent sensing; xylene isomers
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MDPI and ACS Style

Rosales-Vázquez, L.D.; Bazany Rodríguez, I.J.; Hernández-Ortega, S.; Sánchez-Mendieta, V.; Vilchis-Nestor, A.R.; Cázares-Marinero, J.J.; Dorazco-González, A. Structure of a Luminescent MOF-2 Derivative with a Core of Zn(II)-Terephthalate-Isoquinoline and Its Application in Sensing of Xylenes. Crystals 2020, 10, 344.

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