High Brightness and Easy Color Modulation in Lanthanide-Based Coordination Polymers with 5-Methoxyisophthalate as Ligand: Toward Emission Colors Additive Strategy

Insa Badiane (1, 2) , Stéphane Freslon (1) , Yan Suffren (1) , Carole Daiguebonne (1) , Guillaume Calvez (1) , Kevin Bernot (1) , Magatte Camara (2) , Olivier Guillou (1)

1 ISCR - Institut des Sciences Chimiques de Rennes
2 LCPM - Groupe Matériaux Inorganiques:Chimie Douce et Cristallographie

Reactions in water between lanthanide chlorides and the disodium salt of 5-methoxyisophthalic acid, Na2(mip)·7H2O, lead to the first three series of lanthanide-based coordination polymers based on this ligand. The first series contains only one compound with chemical formula [Ce(mip)3/2(H2O)5·2H2O]∞. The second series has general chemical formula [Ln(mip) (Hmip)(H2O)5·H2O]∞ with Ln = La–Ce. The last family is constituted by compounds with general chemical formula [Ln2(mip)3(H2O)8·4H2O]∞ with Ln = Sm–Er plus Y. Luminescent properties of the compounds that belong to this family have been studied. The Tb-based compound presents one of the brightest luminescences reported to date for a lanthanide-based coordination polymer. The weak intermetallic energy transfer evidenced on the third family of compounds allows easy and predictable color modulation of the heterobimetallic powders through additive colors strategy.

Domaines: Chimie de coordination; Polymères; Cristallographie

Insa Badiane, Stéphane Freslon, Yan Suffren, Carole Daiguebonne, Guillaume Calvez, et al.. High Brightness and Easy Color Modulation in Lanthanide-Based Coordination Polymers with 5-Methoxyisophthalate as Ligand: Toward Emission Colors Additive Strategy. Crystal Growth & Design, 2017, 17 (3), pp.1224-1234. ⟨10.1021/acs.cgd.6b01607⟩. ⟨hal-01485636⟩