Chemoselective mechanochemical route toward a bright TADF-emitting CuI-based coordination polymer

Abstract

We report a simple and effective mechanochemical synthesis of a strongly-emissive TADF-material based on a CuI-coordination polymer that is unobtainable through traditional wet methods.

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

“…Mean-while, the simplest neutral 1,3-N,S systems such as 2-(alkylsulfanyl)pyridines, -pyrimidines and -quinolines remain unexplored in this regard, although, as recently demonstrated, they exhibit enormous potential for design of highly luminescent Ag (I) and Cu (I) complexes. [45] In this contribution, we have firstly disclosed the outstanding coordination potential of diverse 2-(alkylsulfanyl)azine ligands toward Ag (I) , exemplified by 2-(methylsulfanyl)pyridines (L1, L2), -pyrimidines (L3, L4), and -quinolines (L5, L6), the structures of which are outlined in Scheme 1. The reaction of these 1,3-N,S ligands with AgNO 3 , AgClO 4 and AgOTf delivers eight new Ag (I) compounds including mono-and dinuclear complexes as well as 1D-to-3D CPs.…”

“…Bifunctional ligands bearing two coordinating 1,3‐N,S fragments spaced by o ‐, m ‐ and p ‐CH 2 ‐C 6 H 4 ‐CH 2 ,, , (CH 2 ) n ( n = 3–6),, and similar linkers, were utilized for engineering of structurally remarkable Ag (I) assemblies of different dimensionality. Meanwhile, the simplest neutral 1,3‐N,S systems such as 2‐(alkylsulfanyl)pyridines, ‐pyrimidines and ‐quinolines remain unexplored in this regard, although, as recently demonstrated, they exhibit enormous potential for design of highly luminescent Ag (I) and Cu (I) complexes …”

(3-Methylbenzo[d]thiazol-3-ium)2Cu3I5: A Copper Iodide Hybrid Photoconductor Assembled via Coulomb Interaction

“…Lead-based organometal halide semiconductors (Pb-OHSs) have received great attention for their advanced applications in photodetector, light emitting diode, solar cell, photocatalysis, and so on. − However, the Pb toxicity of Pb-OHSs that would lead to environmental pollutions during material fabrication, utilization, and final disposal has been demonstrated to be the bottleneck hindering their practice applications. − Recently, group IVA and VA metals, e.g., Ge, Sn, Sb, and Bi, have emerged as alternatives for Pb in exploring hypotoxicity Pb-free OHSs. − However, considering that cost is one of the important limitations for further hypotoxicity OHSs advances, transition-metal copper might act as a potential role in the big Pb-free OHS family, due to its cost-effectiveness, low toxicity, earth-abundance as well as near-infrared absorption. − Currently, luminescent copper­(I) halide hybrids were reported intensively; − however, study toward the exploration of Cu-OHS is relatively limited, , and the known Cu-OHSs are still faced with vital issues of wide band gap, low absorption coefficient, short exciton diffusion length, etc . Therefore, the unflagging effort to design and synthesize new Cu-OHSs with appreciable optoelectronic properties is of great significance.…”

Three Novel Zn-Based Coordination Polymers: Synthesis, Structure, and Effective Detection of Al3+ and S2− Ions

“…Compound 2 exhibits stronger emissions at 436 nm, with an excitation peak of 346 nm, while compound 3 is not observed to produce any luminescent emission ( Figure S5). The luminescence of 1 and 2 is due to ligand-based emission, which may be connected with the metal-to-ligand charge transfer, ligand-to-metal charge transfer, or intraligand transitions between ligands [37][38][39][40]. The photoluminescent emission of CPs is closely associated with the central metal coordination environment and the property of the ligand.…”