Ting Bin Wen

SPCAIE establishes a synergistic feedback loop between AIE-based conformation sensing and plasmonic signal amplification, enabling real-time, label-free monitoring of stimulus-induced hydrogel rearrangements at the nanoscale.

In this study, we investigate the effects of ligands on C-H activation during rhodium(III)-catalyzed C-H bond olefination reactions using well-defined [Cp^XRh^III] catalytic systems with three representative Cp^X (Cp (η⁵-C₅H₅), Cp^CF3 (η⁵-C₅Me₄CF₃), and Cp* (η⁵-C₅Me₅)) ligands. Our results demonstrate that C-H activation as the rate-limiting step is significantly influenced by the steric properties of the Cp^X ligands. Moreover, we observe a dramatic acceleration of the simple [CpRh^III]-catalyzed C-H olefination reaction with acid coproducts such as HOAc, implying an autocatalytic C-H activation process.

A series of new half-disc-shaped platinum(II) complexes [Pt(ppy)(ALⁿ-6OC_nH_2n+1)] (Pt-An), [Pt(ppyF)(ALⁿ-6OC_nH_2n+1)] (Pt-Bn), and [Pt(ppyCF₃)(ALⁿ-6OC_nH_2n+1)] (Pt-Cn) (ALⁿ-6OC_nH_2n+1 = 1,3-bis(3,4,5-trialkoxyphenyl)propane-1,3-dionato; n = 1, 6, 12) with concise structures have been designed and synthesized, in which 2-phenylpyridine (ppy) derivatives were used as cyclometalated ligands and hexacatenar β-diketonate derivatives ALⁿ-6OC_nH_2n+1 as auxiliary ligands. The single-crystal data of the methoxy diketonate analogues Pt-A1, Pt-B1, and Pt-C1 indicate that they all display excellent square planarity. These platinum(II) complexes show a certain emission tunability (ranging from λ = 506-535 nm) by the introduction of fluorine or trifluoromethyl into ppy. Thermal studies reveal that the fluorine-substituted complexes are liquid crystals but the trifluoromethyl-substituted complexes are not. The platinum(II) complexes Pt-A12, Pt-B6, and Pt-B12 can form a hexagonal columnar mesophase via intermolecular π-π interactions. In addition, compared to the reported platinum(II) metallomesogens, Pt-A12 and Pt-B12 exhibit improved ambipolar carrier mobility behaviors in semiconductor devices at the liquid crystal states.

The first rhena[10]annulyne bearing a ten-membered metallacycle with a single metal center has been synthesized. The ring shows a deshielding effect that suggests a π-conjugation present in the metallacycle.

Extending Simmons–Smith reaction to metal-carbyne systems leads to the access of metallacyclopropenes with σ-aromaticity.

A facile stitching thienannulation between acetylenic rylene dyes and S₃˙⁻ for rapid synthesis of largely π-extended thienoacenes was developed.