Mechanochemical Access to Elusive Metal Diphosphinate Coordination Polymer
Andrea Ienco,
Giulia Tuci,
Annalisa Guerri,
Ferdinando Costantino
Affiliations
Andrea Ienco
Consiglio Nazionale delle Ricerche—Istituto di Chimica dei Composti OrganoMetallici (CNR-ICCOM) Via Madonna del Piano 10, Sesto Fiorentino, I-50019 Firenze, Italy
Giulia Tuci
Consiglio Nazionale delle Ricerche—Istituto di Chimica dei Composti OrganoMetallici (CNR-ICCOM) Via Madonna del Piano 10, Sesto Fiorentino, I-50019 Firenze, Italy
Annalisa Guerri
Dipartimento di Chimica “Ugo Schiff”, University of Florence, Via della Lastruccia 3, Sesto Fiorentino, I-50019 Firenze, Italy
Ferdinando Costantino
Dipartimento di Chimica, Biologia e Biotecnologie, University of Perugia, Via Elce di Sotto 8, I-06123 Perugia, Italy
Several binary metal diphosphinate compounds (ML) have been reported for diphosphinate bonded by a single methylene fragment. In case of longer bridges, binary products are difficult to isolate in crystalline form. Here, using a solvent assisted mechano-chemistry synthesis, we report two new ML crystalline phases, one hydrated and one anhydrous. The hydrated phase is a 2D coordination polymer with an open framework structure. Its network displays a new topology for coordination polymers and metal organic frameworks. The thermal behavior of the two phases has been studied. Finally, the importance of the bridge length is discussed in view of known metal diphosphinate compounds.
