Опубликована статья:

Beyond the Classical Coordination Chemistry: The First Case of a Triply Bridging Phosphine Ligand //  Andrey Yu. Baranov, Elena A. PritchinaAlexey S. BerezinNina P. GritsanDenis G. Samsonenko,Vladimir P. Fedin, Nataliya A. Belogorlova. Angewandte Chemie.  (DOI: 10.1002/anie.202103037)

Abstract

The first example of a triply bridging (μ3P) phosphine ligand has been discovered in the crownshaped [Cu3(μ2Hal)3L] (Hal=Cl, Br, or I) complexes supported by tris[2(2pyridyl)ethyl]phosphine (L). Theoretical analysis completely confirms the observed μ3Pbridging pattern, revealing the interaction of the same lone pair of phosphorus with three valence 4sorbitals of Cu atoms. The presented complexes exhibit outstanding blue phosphorescence (λem=442–465 nm) with the quantum efficiency reaching 100 %. The complex [Cu3(μ2I)3L] also exhibits remarkable thermo and mechanochromic luminescence resulting in a sharp change in the emission colour upon external stimuli. These findings essentially contribute to coordination chemistry of the pnictine ligands.

 

https://onlinelibrary.wiley.com/doi/10.1002/anie.202103037

 

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