biostudies-literaturePhan TALabEx Chimie des Systèmes Complexese202214638https://www.ebi.ac.uk/biostudies/studies/S-EPMC10107221biostudies-literatureUnknown62(6)A β-cyclodextrin-based diphosphane with metal-confining properties was efficiently synthesized thanks to an unprecedented Smiles-like rearrangement of diphenyl-(2-phosphanylphenyl)phosphane in the presence of excess n-BuLi. The cis-chelating bidentate ligand is capable of forming very stable heteroleptic [Cu(NN)(PP)]⁺ complexes in which a metal-bound diimine ligand (bpy, phen, or mmp) is located within the cyclodextrin cavity. As a result of ligand encapsulation, flattening of the metal tetrahedral geometry in the excited state is disfavored, thereby resulting in enhanced luminescent properties.Angewandte Chemie (International ed. in English)Stable Luminescent [Cu(NN)(PP)]⁺ Complexes Incorporating a β-Cyclodextrin-Based Diphosphane Ligand with Metal-Confining Properties.PMC10107221JNi-CSC-0002Armspach DDelavaux-Nicot BSaavedra Moncada ABandini EPhan TANierengarten JFArmaroli NfalseStable Luminescent [Cu(NN)(PP)]⁺ Complexes Incorporating a β-Cyclodextrin-Based Diphosphane Ligand with Metal-Confining Properties.A β-cyclodextrin-based diphosphane with metal-confining properties was efficiently synthesized thanks to an unprecedented Smiles-like rearrangement of diphenyl-(2-phosphanylphenyl)phosphane in the presence of excess n-BuLi. The cis-chelating bidentate ligand is capable of forming very stable heteroleptic [Cu(NN)(PP)]⁺ complexes in which a metal-bound diimine ligand (bpy, phen, or mmp) is located within the cyclodextrin cavity. As a result of ligand encapsulation, flattening of the metal tetrahedral geometry in the excited state is disfavored, thereby resulting in enhanced luminescent properties.2023-01-01T00:00:00Z2023 Feb2025-04-06T11:21:02.049Z2025-04-06T11:21:02.049ZS-EPMC101072213643374410.1002/anie.202214638