Ligand (biochemistry)

Receptor

Organic chemistry

Lanthanide

Coordination polymer

Fluorine

Luminescence

Inorganic chemistry

Chemistry

Materials science

Programming language

Substitution (logic)

Phenanthroline

Computer science

Optoelectronics

Polymer

Biochemistry

Photochemistry

RSC Advances

A family of highly stable lanthanide coordination polymers incorporating fluorine-substituted carboxylate tectonics and the rigid ligand phenanthroline, namely, {[Ln m (Tfbda) n (Phen)2·2H2O]·2H2O} z , (Ln = Pr (1), Ho (4) and Gd (7), m = 2, n = 3); {[Ln3 (Tfbda) m1 (Tfba) m2 (Phen) n ·2H2O]·H2O} z (z > 1, Ln = Dy (3), Er (5) and Yb (6), m 1 = 4, m 2 = 1, n = 3); [Ln2(H2Tfbda)4(Phen)2·(H2O)2]·Phen (Ln = Nd (2)), Tfbda = 3,4,5,6-tetrafluoro-benzene-1,2-dioic acid, Tfba = 2,3,4,5-tetrafluorobenzoic acid have been afforded under hydrothermal conditions. The series of coordination polymers exhibited diverse structural motifs, from dinuclear cluster to 1-D chain arrary, displaying efficiently sensitized luminescence over a spectral range from visible to near-infrared (NIR) region and a long lifetime, due to efficient energy transfer from fluorine-substituted ligands to Ln(iii) centers in solid state. Slow relaxation magnetization and significant frequency- and temperature-dependent peaks were observed in trinuclear Dy(iii)-based coordination polymer 3. DC magnetic susceptibility studies reveal the existence of weak ferromagnetic interaction within 7.

Enhanced luminescence and tunable magnetic properties of lanthanide coordination polymers based on fluorine substitution and phenanthroline ligand