Luminescent metal-organic frameworks (MOFs) as a chemopalette: Tuning the thermochromic behavior of dual-emissive phosphorescence by adjusting the supramolecular microenvironments

Zhan, Shun-Ze and Li, Mian and Ng, Seik Weng and Li, Dan (2013) Luminescent metal-organic frameworks (MOFs) as a chemopalette: Tuning the thermochromic behavior of dual-emissive phosphorescence by adjusting the supramolecular microenvironments. Chemistry - A European Journal, 19 (31). pp. 10217-10225. ISSN 0947-6539, DOI https://doi.org/10.1002/chem.201204632.

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Official URL: https://doi.org/10.1002/chem.201204632

Abstract

Two classical copper(I)-cluster-based luminophores, namely, Cu 4I4 and [Cu3Pz3]2 (Pz=pyrazolate), are immobilized in a supramolecular system through the formation of metal-organic framework (MOF) materials. This series of luminescent MOF materials, namely, [Cu4I4(NH3)Cu 3(L1)3]n, [Cu4I4(NH 2CH3)Cu3(L1)3]n, and [Cu4I4Cu3(L2)3]n (L1=3-(4-pyridyl)-5-(p-tolyl)pyrazolate; L2=3-(4-pyridyl)-5-(2,4-dimethylphenyl) pyrazolate), exhibit diverse thermochromism attributed to the relative functioning efficacy of the two coordination luminophores. Such an intriguing chemopalette effect is regulated by the different supramolecular microenvironments between the two-dimensional layers of these MOFs, and in particular, by the fine-tuned Cu-Cu distances in the excimeric [Cu 3Pz3]2 luminophore. The structure-property elucidation of the thermochromic behavior allows one to understand these optical materials with unusual dual-emissive properties. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: copper; luminescence; metal-organic frameworks; supramolecular chemistry; thermochromism
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 15 Jan 2015 13:57
Last Modified: 12 Jan 2021 08:22
URI: http://eprints.um.edu.my/id/eprint/12103

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