The chelate-to-bridging shift of phosphane dipalladacycles: convenient synthesis of double A-frame tetranuclear complexes

Pablo Frieiro-Gomis; Fátima Lucio-Martínez; Paula Munín-Cruz; Juan M Ortigueira; M Teresa Pereira; Paula Polo-Ces; Digna Vázquez-García; José M Vila

doi:10.1039/c8cc01046c

The chelate-to-bridging shift of phosphane dipalladacycles: convenient synthesis of double A-frame tetranuclear complexes

Chem Commun (Camb). 2018 Mar 8;54(21):2662-2665. doi: 10.1039/c8cc01046c.

Authors

Pablo Frieiro-Gomis¹, Fátima Lucio-Martínez, Paula Munín-Cruz, Juan M Ortigueira, M Teresa Pereira, Paula Polo-Ces, Digna Vázquez-García, José M Vila

Affiliation

¹ Departamento de Química Inorgánica, Universidade de Santiago de Compostela, Avenida das Ciencias s/n, 15782 Santiago de Compostela, Spain. josemanuel.vila@usc.es.

PMID: 29479623
DOI: 10.1039/c8cc01046c

Abstract

Palladacycles of the type [Pd₂(Ph₂PCH₂PPh₂-P,P)₂(C,N:C,N)] (C,N:C,N = bis(N-2,3,4-trimethoxybenzylidene)-4,4'-sulfonyldianiline or -4,4'-oxydianiline) can undergo a spontaneous slow chelate-to-bridging diphosphane coordination shift in solution. Following this strategy a tailor-made synthetic procedure was devised that culminates in isolation of double A-frame tetranuclear palladium complexes.