Selective detection of SO2 in NU-1000 via organometallic nickel silylphosphine post-synthetic complex incorporation

Juan L. Obeso; Luz J. Barrios-Vargas; Valeria B. López-Cervantes; Yoarhy A. Amador-Sánchez; Nancy Martin-Guaregua; Ricardo A. Peralta; Ramon Munoz; Ana Martínez; Carolina Leyva; Diego Solis-Ibarra; Elí Sánchez-González; Ilich A. Ibarra; Virginia Montiel-Palma

doi:10.1039/D3DT03985D

Selective detection of SO₂ in NU-1000 via organometallic nickel silylphosphine post-synthetic complex incorporation†

Juan L. Obeso,

‡^ab Luz J. Barrios-Vargas,‡^c Valeria B. López-Cervantes,

‡^a Yoarhy A. Amador-Sánchez,^a Nancy Martin-Guaregua,^d Ricardo A. Peralta,

^d Ramon Munoz,^e Ana Martínez,

^f Carolina Leyva,

^b Diego Solis-Ibarra,

^a Elí Sánchez-González,

*^a Ilich A. Ibarra

*^a and Virginia Montiel-Palma

*^c

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* Corresponding authors

^a Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyoacán, Ciudad de México, Mexico
E-mail: argel@unam.mx, elisg@materiales.unam.mx

^b Instituto Politécnico Nacional, CICATA U. Legaria, Laboratorio Nacional de Ciencia, Tecnología y Gestión Integrada del Agua, (LNAgua), Legaria 694 Irrigación, Miguel Hidalgo, CDMX, Mexico

^c Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, USA
E-mail: vmontiel@chemistry.msstate.edu

^d Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana Unidad Iztapalapa (UAM-I), Mexico

^e Mississippi School for Maths and Science, 1100 College St, Columbus, Mississippi 39701, USA

^f Departamento de Materiales de Baja Dimensionalidad. Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyoacán, Ciudad de México, Mexico

Abstract

The adsorption and detection of SO₂ using Zr-based MOF, NU-1000 grafted with an organometallic nickel silylphosphine complex ([NiSi]@NU-1000) via post-synthetic modification are reported. [NiSi]@NU-1000 exhibits high stability under dry and wet SO₂, with a high cyclability performance. Moreover, fluorescence experiments postulate [NiSi]@NU-1000 as a promising SO₂ detector due to its high SO₂ selectivity over CO₂ and air, showing an evident quenching effect, especially at low SO₂ concentrations (0.1 bar of SO₂). Time-resolved photoluminescence experiments suggest that host–guest SO₂ interactions are associated with the turn-off effect.

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Selective detection of SO₂ in NU-1000 via organometallic nickel silylphosphine post-synthetic complex incorporation†

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Selective detection of SO₂ in NU-1000 via organometallic nickel silylphosphine post-synthetic complex incorporation

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