Intramolecular rearrangements guided by adaptive coordination-driven reactions toward highly luminescent polynuclear Cu(i) assemblies - Archive ouverte HAL Access content directly
Journal Articles Inorganic Chemistry Frontiers Year : 2020

Intramolecular rearrangements guided by adaptive coordination-driven reactions toward highly luminescent polynuclear Cu(i) assemblies

(1) , (1) , (1) , (2) , (1) , (1) , (1) , (1) , (2) , (1)
1
2

Abstract

Adaptive coordination-driven supramolecular chemistry based on conformationally flexible pre-organized luminescent Cu(I) precursors paves the way to the ready formation of intricate supramolecular scaffold possessing intrinsic luminescence properties. A formal ring extension of a tetrametallic Cu(I) metallacycle bearing Thermally Activated Delayed Fluorescence (TADF) properties can thus be carried out, affording a new hexametallic Cu(I) metallacycle 1 bearing modulated solid-state TADF properties. Attempts to adapt this ring extension process to the formation of targeted heterometallic Au2Cu4 and Pt2Cu8 assemblies led to the unexpected and ready formation of the Au2Cu10 and Pt4Cu11 derivatives 2 and 3, respectively. These outcomes strengthen the scope and perspectives of adaptive coordination-driven supramolecular chemistry compared to those of conventional coordination-driven supramolecular chemistry. Indeed, it guides concerted intramolecular fragmentation and redistribution of the particular building blocks used, affording selectively supramolecular scaffolds of higher nuclearity and complexity. The study of the solid-state photophysical properties of the assemblies 2 and 3 highlights enhanced and original behaviors, in which the heavy metal spin-orbit coupling values significantly influence the relaxation processes centered on the Cu(I) metal centers.
Fichier principal
Vignette du fichier
Moussa et al-2020-Intramolecular rearrangements guided by adaptive.pdf (2.44 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-02536595 , version 1 (09-09-2020)

Identifiers

Cite

M. El Sayed Moussa, A.M. Khalil, S. Evariste, H.-L. Wong, V. Delmas, et al.. Intramolecular rearrangements guided by adaptive coordination-driven reactions toward highly luminescent polynuclear Cu(i) assemblies. Inorganic Chemistry Frontiers, 2020, 7 (6), pp.1334-1344. ⟨10.1039/c9qi01595g⟩. ⟨hal-02536595⟩
70 View
111 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More