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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Porosity induced rigidochromism in platinum(ii) terpyridyl luminophores immobilized at silica composites

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Author(s):
Norton, Amie E. [1, 2] ; Zanoni, Kassio P. S. [3, 4] ; Dourges, Marie-Anne [5] ; Ravaro, Leandro P. [3] ; Abdolmaleki, Mahmood K. [1, 6] ; de Camargo, Andrea S. S. [3] ; Toupance, Thierry [5] ; Connick, William B. [1] ; Chatterjee, Sayandev [7]
Total Authors: 9
Affiliation:
[1] Univ Cincinnati, Dept Chem, Cincinnati, OH 45220 - USA
[2] USDA ARS, Grain Qual & Struct, 1515 Coll Ave, Manhattan, KS 66503 - USA
[3] Univ Sao Paulo, Inst Fis Sao Carlos, Lab Espectroscopia Mat Func LEMAF, BR-13566590 Sao Carlos, SP - Brazil
[4] Univ Valencia, Mol Optoelect Devices MOED, Inst Ciencia Mol, Parque Cient, Paterna 46980 - Spain
[5] Univ Bordeaux, CNRS, UMR 5255, Inst Mol Sci, 351 Cours Liberat, F-33405 Talence - France
[6] Texas A&M Int Univ, Dept Biol & Chem, Laredo, TX 78041 - USA
[7] ESSENCE Diagnost LLC, Livingston, NJ 07039 - USA
Total Affiliations: 7
Document type: Journal article
Source: JOURNAL OF MATERIALS CHEMISTRY C; v. 9, n. 19 APR 2021.
Web of Science Citations: 0
Abstract

Stimuli responsive composites consisting of inorganic or organometallic coordination substrates supported on porous platforms that integrate and improve the key features of both the substrate and platform, open the doorway to advanced multifunctional materials. This work presents a new class of stimuli responsive multifunctional materials based on platinum(ii) terpyridyl luminophores@silica composites. Presented here is how the intercalation of Pt(ii) salts with a planar architecture and sterically permitting terpyridyl ligands within meso or microporous silica support impacts Pt(ii) spectroscopies. The photophysics and luminescence properties of square-planar Pt(ii) salts are dictated by their intermolecular, non-covalent PtMIDLINE HORIZONTAL ELLIPSISPt interactions between the individual Pt(ii) units; a feature that has been explored in designing stimuli responsive materials. This work explores a novel methodology where the electronic structure and luminescence behavior of such salts are systematically varied through their intercalation within rigid silica frameworks. The intercalation of Pt(ii) complexes with varied degrees of non-covalent PtMIDLINE HORIZONTAL ELLIPSISPt interactions in the virgin form within meso-macroporous silica supports generates materials that show marked variation in their electronic structure and luminescence behavior compared to their virgin salts. Further, the spectroscopies show a systematic dependance on the mean pore size of the silica support. The X-ray powder diffraction and microscopy studies reveal these behaviors to be related to the perturbations in their long-range structural order, that gets reflected in their microcrystalline dimensions and particle morphologies. (AU)

FAPESP's process: 18/05152-7 - Solution-processed charge-transport layers for efficient perovskite solar cells
Grantee:Kassio Papi da Silva Zanoni
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 16/07706-4 - Nanocrystalline luminescent materials: new chemical concepts for energy conversion and sustainability
Grantee:Kassio Papi da Silva Zanoni
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 13/07793-6 - CEPIV - Center for Teaching, Research and Innovation in Glass
Grantee:Edgar Dutra Zanotto
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC