Luminescence of Macrocyclic Mononuclear DyIII Complexes and Their Immobilization on Functionalized Silicon-Based Surfaces

Autor: Yolimar Gil, Raquel Gimeno-Muñoz, Ricardo Costa de Santana, Núria Aliaga-Alcalde, Pablo Fuentealba, Daniel Aravena, Arántzazu González-Campo, Evgenia Spodine
Přispěvatelé: Fondo Nacional de Desarrollo Científico y Tecnológico (Chile), European Research Council, Ministerio de Ciencia, Innovación y Universidades (España), Comisión Nacional de Investigación Científica y Tecnológica (Chile), Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), Santana, Ricardo Costa de, Aliaga Alcalde, Nuria, Aravena, Daniel, González Campo, Arántzazu, Spodine, Evgenia
Rok vydání: 2022
Předmět:
Zdroj: Inorganic Chemistry. 61:16347-16355
ISSN: 1520-510X
0020-1669
DOI: 10.1021/acs.inorgchem.2c02342
Popis: Two mononuclear DyIII complexes, [Dy(L1)(NCS)3] (Dy-EDA) and [Dy(L2)(NCS)3] (Dy-DAP), where Ln (n = 1-2) corresponds to a macrocyclic ligand derived from 2,6-pyridinedicarboxaldehyde and ethylenediamine (L1) and 1,3-diaminepropane (L2) were immobilized on functionalized silicon-based surfaces. This was achieved by the microcontact printing (μCP) technique, generating patterns on a functionalized surface via covalent bond formation through the auxiliary -NCS ligands present in the macrocyclic complex species. With this strategy, it was possible to control the position of the immobilized molecules on the surface. Water contact angle measurements, X-ray photoelectron spectroscopy (XPS), infrared reflection absorption spectra (IRRAS), and atomic force microscopy (AFM) confirmed that the surfaces were successfully functionalized. Furthermore, the optical properties in a broad temperature range were investigated for the as-prepared compounds. At room temperature, Dy-EDA was shown to emit in the deep blue region (Commission Internationald'Eclairage (CIE): (0.175, 0.128)), while Dy-DAP in the white region (CIE: (0.252, 0.312)). The different CIE values were due to the contribution of the strong emission of the ligand in the case of Dy-EDA. Besides, surface photoluminescence measurements showed that the immobilized complexes retained their bulk emissive properties.
D.A. and E.S. thank FONDECYT 1210325 and 1200033 projects for financial support. Y.G. thanks the National Agency for Research and Development (ANID) for the Doctoral Scholarship 21170520. Y.G. and E.S. are members of CEDENNA; Financiamiento Basal AFB 180001. N.A.-A. and R.G. thank the European Research Council (ERC) under the European Union’s Horizon 2020 R&D programme (ERC-724981). This work was supported by the project PID2019-108794GB-I00 (MCIN/AEI/10.13039/501100011033) from the Ministerio de Ciencia e Innovación. A.G.-C. and N.A.-A. acknowledge financial support from the Spanish Ministry of Science through the “Severo Ochoa” Programme for Centres of Excellence (FUNFUTURE, 2020–2023). R.C.d.S. thanks CNPq, Brazil.
With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000917-S).
Databáze: OpenAIRE
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