title: Synthesis of new tren-based tris-macrocycles. Anion cluster assembling inside the cavity generated by a bowl-shaped receptor.
abstract: The synthesis of three new tris-macrocycles, containing three [12]aneN(4) (L1), [12]aneN(3)O (L2), or [14]aneN(4) (L3) moieties appended to a tren unit, is reported. The crystal structure of the [(Na(ClO(4))(6)) subset L1(2)H(13)]Na(6)Cl(2)(ClO(4))(12) compound shows the anionic cluster [Na(ClO(4))(6)](5)(-) assembled inside the cavity defined by two bowl-shaped polyammonium receptors, held by multiple charge-charge and hydrogen bond interactions.
authors.affiliation: Dipartimento di Chimica, Polo Scientifico, Università di Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy.
authors.forename: Carla
authors.initials: C
authors.lastname: Bazzicalupi
authors.forename: Andrea
authors.initials: A
authors.lastname: Bencini
authors.forename: Emanuela
authors.initials: E
authors.lastname: Berni
authors.forename: Antonio
authors.initials: A
authors.lastname: Bianchi
authors.forename: Samuele
authors.initials: S
authors.lastname: Ciattini
authors.forename: Claudia
authors.initials: C
authors.lastname: Giorgi
authors.forename: Sauro
authors.initials: S
authors.lastname: Maoggi
authors.forename: Piero
authors.initials: P
authors.lastname: Paoletti
authors.forename: Barbara
authors.initials: B
authors.lastname: Valtancoli