Two cyclometalated Pt(<scp>ii</scp>) complexes showing reversible phosphorescence switching due to grinding-induced destruction and crystallization-induced formation of supramolecular dimer structure

Yuan, Qin-Zhen; Wan, Fu-Shun; Shen, Tingting; Cao, Duanlin

doi:10.1039/d1ra07142d

Cited by 5 publications

(1 citation statement)

References 40 publications

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“…Комплексы [Pt(dfppy)(pbdtmi)]PF 6 (93) и [Pt(ppy)(pbdtmi)]PF 6 (94), синтезированные на основе лиганда дитиенилэтена (pbdtmi), демонстрируют надмолекулярную димерную структуру, в которой два координационных катиона соединяются друг с другом посредством π⋯π стэкингвзаимодействия [47]. Люминесцентные материалы с круговой поляризацией (CPL) вызывают большой интерес изза их потенциального применения в дисплеях следующего поколения.…”

Section: биологическая активность комплексов платиныunclassified

Organic platinum compounds containing one platinum–carbon bond. Synthesis, structure, possibilities of practical application

Sharutin,

Zykova

2023

Chem

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The synthesis methods and structural features of organic platinum compounds containing one platinum–carbon bond have been systematized and described on the basis of analysis of the literature sources published mainly from 2020 to 2023. The discussion of the synthesis methods focuses on the most efficient approaches. Chemical properties of these platinum compounds, schemes of preparation and some mechanisms of reactions are presented. Information on biological activity, catalytic and photoluminescent properties is given.

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Section: биологическая активность комплексов платиныunclassified

Organic platinum compounds containing one platinum–carbon bond. Synthesis, structure, possibilities of practical application

Sharutin,

Zykova

2023

Chem

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Molecular Engineering for Shortening the Pt···Pt Distances in Pt(II) Dinuclear Complexes and Enhancing the Efficiencies of these Complexes for Application in Deep‐Red and Near‐IR OLEDs

Rajakannu

Lee

Park

et al. 2023

Adv Funct Materials

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Deep-red (DR)-to-near-infrared (NIR) phosphorescent organic light-emitting diodes (OLEDs) have potentials for application in various fields ranging from phototherapy to sensing. Accordingly, herein, phenylpyridazinebased bidentate ligands are synthesized and subsequently utilized for the preparation of dinuclear Pt(II) complexes (1-6). The molecular structures of 1-3 is investigated by single-crystal X-ray diffraction, and the results suggest that these complexes have substantially shortened Pt•••Pt distances (2.906-2.911 Å). Complexes 1-6 exhibit intense emissions in the NIR region (700-726 nm), high photoluminescence quantum yield (PLQY) (0.11-0.18), and short phosphorescence decay lifetimes (τ = 0.64-0.95 µs) in a CH 2 Cl 2 solution. To examine the effect of N-substitution on the dinuclear Pt complexes, the phenylpyrimidine-based Pt(II) emitters 7 and 8 are prepared and discovered to have Pt•••Pt distances of 2.933 Å. 7 and 8 demonstrate strong emissions in the 628-650 nm range with high PLQY of 0.52-0.65. Theoretical studies indicate that the functional groups or atoms in the ligands play crucial roles in the formation of emitters with significantly shortened Pt•••Pt distances. 3 and 7 are employed as non-doped emitters to fabricate NIR OLEDs, and the resulting OLEDs exhibit electroluminescence peaks at 754 and 692 nm with maximum external quantum efficiencies of 3.0 and 4.4%, respectively.

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Effect of substituents in tuning the inter- and intra-molecular interactions in the dinuclear Pt(II) complexes

Baskaran,

Thangaraj,

Palanichamy

et al. 2024

Journal of Molecular Structure

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Two cyclometalated Pt(ii) complexes showing reversible phosphorescence switching due to grinding-induced destruction and crystallization-induced formation of supramolecular dimer structure

Cited by 5 publications

References 40 publications

Organic platinum compounds containing one platinum–carbon bond. Synthesis, structure, possibilities of practical application

Organic platinum compounds containing one platinum–carbon bond. Synthesis, structure, possibilities of practical application

Molecular Engineering for Shortening the Pt···Pt Distances in Pt(II) Dinuclear Complexes and Enhancing the Efficiencies of these Complexes for Application in Deep‐Red and Near‐IR OLEDs

Effect of substituents in tuning the inter- and intra-molecular interactions in the dinuclear Pt(II) complexes

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