Stable Luminescent [Cu(NN)(PP)] Complexes Incorporating a β-Cyclodextrin-Based Diphosphane Ligand with Metal-Confining Properties

Overview

Journal Angew Chem Int Ed Engl

Specialty Chemistry

Date 2022 Nov 26

PMID 36433744

Authors

Tuan-Anh Phan

Nicola Armaroli

Alejandra Saavedra Moncada

Elisa Bandini

Beatrice Delavaux-Nicot

Jean-Francois Nierengarten

Dominique Armspach

Affiliations

Soon will be listed here.

Abstract

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.

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Stable Luminescent [Cu(NN)(PP)] Complexes Incorporating a β-Cyclodextrin-Based Diphosphane Ligand with Metal-Confining Properties.

Phan T, Armaroli N, Moncada A, Bandini E, Delavaux-Nicot B, Nierengarten J Angew Chem Int Ed Engl. 2022; 62(6):e202214638.

PMID: 36433744 PMC: 10107221. DOI: 10.1002/anie.202214638.

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