Matrix Coordination Induced Emission in a Three‐Dimensional Silver Cluster‐Assembled Material

Abstract

Developing highly luminescent and extensively stable silver cluster‐assembled materials (SCAMs) from the inferior luminogens and unstable silver cluster is an important and challenging issue. Herein, a new luminescent three‐dimensional SCAM (Ag12CPPP, [Ag12(StBu)6(CF3COO)6(CPPP)2(DMAc)12]n; CPPP=2,5‐bis(4‐cyanophenyl)‐1,4‐bis(4‐(pyridine‐4‐yl)‐phenyl)‐1,4‐dihydropyrrolo[3,2‐b]pyrrole, DMAc=dimethylacetamide) was designed and synthesized with a quadridentate rigid emission ligand (CPPP) and a silver–chalcogenolate cluster (SCC) containing 12 AgI atoms. The luminescence study indicates that CPPP is an aggregation‐caused quenching (ACQ) molecule with twisted intramolecular charge transfer (TICT) character. Benefiting from the strong immobilization effect in the robust framework, the quantum yield of CPPP is greatly enhanced in Ag12CPPP compared with that of CPPP in solution or in the solid state. As a result, Ag12CPPP exhibits typical matrix coordination induced emission (MCIE) effect. Such efficient rigidifying methodology provides a promising approach for enhancing luminescence of ACQ molecules in an aggregated state and strengthening the silver cluster in an unstable state.

0D to 3D Coordination Assemblies Engineered on Silver(I) Salts and 2‐(Alkylsulfanyl)azine Ligands: Crystal Structures, Dual Luminescence, and Cytotoxic Activity

“…Again, HE and LE emission of 2 and 3 could attribute to 1 IL and 3 IL transitions in the pyridine rings of the L1 ligand. In general, considering the previous studies, the dual emission is also typical for Ag (I) complexes containing N ‐heterocyclic ligands, as surely as pure intraligand phosphorescence, or fluorescence,, and thermally‐activated delayed fluorescence …”

Thiolate‐Protected Metal Nanoclusters: Recent Development in Synthesis, Understanding of Reaction, and Application in Energy and Environmental Field

“…[ 96,104–119 ] In addition, the regular connection of metal NCs produces new functions. [ 96,120–142 ] In the following, we discuss recent developments in alloying and regular connection.…”

“…Indeed, in recent years, there have been several reports on crystals in which metal NCs containing SR ligand were regularly linked using several means ( Table 3 ). [ 96,120–142 ]…”

“…It is possible to form not only 1D CSs but also 2D and 3D CSs when using method 3. [ 123,125,126–128,130–135,140,142 ] Using such linker molecules is a technique often seen in the formation of self‐assembled metal complexes [ 215 ] and metal‐organic frameworks (MOFs). [ 216 ] When 2D and 3D CSs are formed by using a linker, the CSs are expected to exhibit not only higher stability but also specific functions, such as gas storage into pores [ 217 ] and catalysis with reaction selectivity.…”

Mesoporous Crystalline Silver-Chalcogenolate Cluster-Assembled Material with Tailored Photoluminescence Properties

“…[32][33][34][35][36][37][38][39][40][41] In our present study, we developed a series of SC-CAMs with diverse structures and good stability. 23,26,[42][43][44][45][46][47] However, the interpenetrated structures were limited to specific pore sizes, that is, those which were accessible only by small guest molecules; meanwhile some functionalized guest molecules were restrained from re-entry into the pores because of their oversized structures.…”