Visible-light excited luminescent trigonal prismatic metallocages from a template-directed assembly

Abstract

Six trigonal prismatic metallocages (TPMs) composed of 24 components, namely {(Cu3L3)(Cu2X2)3(Cu3L3)}·xG (HL = 4-(quinoline-8-thio)-3,5-dimethyl-1H-pyrazole, G = benzene (B), methylbenzene (MB), 1,3,5-triphenylbenzene (TPB), x = 3 for B, MB and 1...

N-heterocyclic carbene-stabilized Cu9 clusters with combined thermally activated delayed fluorescence and phosphorescence

“…Previous efforts have developed strikingly emissive multicore Cu(I) clusters, which demonstrated a variety of supramolecular assemblies through Cu-Cu interactions. [14][15][16][17][18][19] In this regard, cuprophilic interactions can greatly boost the radiative rate involving the T 1 state by enhancing SOC strength, resulting in emission lifetimes comparable to those of TADF. Nevertheless, copper clusters that exhibit both TADF and phosphorescence are still relatively scarce, and unravelling this complex luminescence mechanism remains a challenging task.…”

Emissive silver(i) cyclic trinuclear complexes with aromatic amine donor pyrazolate derivatives: way to efficiency

“…22,23 On the other hand, the use of bispyrazoles with flexible bridges leads to the formation of MOFs or metallocages. 2,[24][25][26][27][28][29][30] Yet, the variation of the substituent in the pyrazolate ligands is one of the more prospective pathways to influence the photophysical properties. The introduction of new functional substituents via the methylene bridge leads to the absence of electronic communication.…”

“…The introduction of new functional substituents via the methylene bridge leads to the absence of electronic communication. [29][30][31] Thus, the properties observed primarily depend on the structure of complexes obtained and additional coordination interactions. This behavior is undoubtedly essential and perspective, but the search for new pyrazoles with fluorophore substituents is of considerable interest.…”

Anion-encapsulating, discrete prism and extended frusta, from trimetallated triangular macrocycles and linkers

“…1–3 Interesting and challenging are also the assembly processes through which such architectures form, as well as their fascinating geometrical aesthetics and structural diversity. 1–3 The prismatic structural motif is also of importance for organic molecules, 4 DNA-based architectures 5 or metal–organic materials. 6…”

“…Compound 1 (from [Pb 3 L ](CF 3 SO 3 ) 6 and 1.5 equiv. of linker a ) is a triangular 2 prism. The cavity [Pb 3 La 3 ] 6+ is closed here by a second macrocyclic complex [Pb 3 L ] 6+ (Fig.…”