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Luminescent complexes with arsane ligands have garnered considerable interest due to their uncomplicated structure and effective luminescence. Particularly, rigid monodentate arsane ligands, wherein the substituents of the arsenic atom are bridged, have proven advantageous in enhancing emission intensity. In this study, we synthesized non‐bridged, O‐bridged, S‐bridged, and O,O‐bridged triphenylarsine derivatives using the safe and efficient protocols developed in our previous work. We then created platinum dihalide (PtX2, X=Cl, Br, I) complexes with these arsane ligands. Their structures were determined through single‐crystal X‐ray diffraction, revealing significant influences on geometry by the counter anion and the arsane/phosphane ligand. Additionally, we elucidated the correlation between the ligand structure and the solid‐state emission properties [ABSTRACT FROM AUTHOR]

In this work, bisarsine oxides were evaluated as novel bridging ligands, aiming to develop practical and efficient luminescent lanthanide coordination polymers. We have synthesized one‐dimensional (1D) Eu3+ coordination polymers that incorporate bisarsine oxide bridging ligands and hexafluoroacetylacetonate anions. These polymers exhibited a denser packing of chains compared to analogous polymers bridged with bisphosphine oxides. The coordination polymers demonstrated exceptional thermal stability and substantial emission quantum yields. Additionally, the bisarsine oxides induced a pronounced polarization effect, facilitating a sensitive electric dipole transition that yields considerably narrow band red emission. Remarkably, the Eu3+ coordination polymers with bisarsine oxides maintained intense emission even at 550 K. A distinctive feature of these polymers is their heating‐induced emission enhancement observed when the temperature was increased from 300 K to 400 K. [ABSTRACT FROM AUTHOR]

In this work, bisarsine oxides were evaluated as novel bridging ligands, aiming to develop practical and efficient luminescent lanthanide coordination polymers. We have synthesized one-dimensional (1D) Eu 3+ coordination polymers that incorporate bisarsine oxide bridging ligands and hexafluoroacetylacetonate anions. These polymers exhibited a denser packing of chains compared to analogous polymers bridged with bisphosphine oxides. The coordination polymers demonstrated exceptional thermal stability and substantial emission quantum yields. Additionally, the bisarsine oxides induced a pronounced polarization effect, facilitating a sensitive electric dipole transition that yields considerably narrow band red emission. Remarkably, the Eu 3+ coordination polymers with bisarsine oxides maintained intense emission even at 550 K. A distinctive feature of these polymers is their heating-induced emission enhancement observed when the temperature was increased from 300 K to 400 K., (© 2024 Wiley-VCH GmbH.)