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Third-order nonlinear optical behavior of an amide-tricarboxylate zinc(II) metal–organic framework with two-fold 3D+3D interpenetration: Inorganic Chemistry

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Author(s)

Reza Abazari, Elnaz Yazdani, Marzieh Nadafan, Alexander M. Kirillov, Junkuo Gao, Alexandra M. Z. Slawin, Cameron L. Carpenter-Warren

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Abstract

A new metal–organic framework (MOF), [Zn44-O)(μ6-L)2(H2O)2]n·nDMF (ZSTU-10), was assembled from zinc(II) nitrate and N,N′,N″-bis(4-carboxylate)trimesicamide linkers and fully characterized. Its crystal structure discloses an intricate two-fold 3D+3D interpenetrated MOF driven by the [Zn44-O)]-based tetragonal secondary building units and the C3-symmetric tris-amide-tricarboxylate linkers (μ6-L3–). Topological analysis of ZSTU-10 reveals two interpenetrated 3,6-connected nets with an rtl (rutile) topology. Z-Scan analysis at 532 nm was conducted to study a nonlinear optical (NLO) behavior of ZSTU-10. The nonlinear responses of ZSTU-10 were explored under various laser intensities, revealing notable third-order NLO properties in the visible region. A large two-photon absorption at lower incident intensities highlights the fact that ZSTU-10 can be applied in optical limiting devices as well as optical modulators. Moreover, a nonlinear refractive index (n2) is indicative of a self-defocusing behavior. This work thus expands a family of novel MOF materials with remarkable optical properties.

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Details

Original languageEnglish
JournalInorganic Chemistry
Early online date13 Jun 2021
DOIs
Publication statusE-pub ahead of print - 13 Jun 2021

    Research areas

  • Ligands, Nonlinear optics, Metal organic frameworks, Optical properties, Lasers

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