{LnIII[μ5-κ2,κ1,κ1,κ1,κ1-1,2-(CO2)2C6H4][isonicotine][H2O]}2CuI·X (Ln = Eu, Sm, Nd; X = ClO4-, Cl-): A New Pillared-Layer Approach to Heterobimetallic 3d−4f 3D-Network Solids

A series of anionic host coordination polymers based on azoxybenzene carboxylate: structures, luminescence and magnetic properties

Series of luminescent or magnetic coordination polymers based on azoxybenzene tetracarboxylic acid and bipyridine have been afforded, and characterized systematically.

pH-Dependent Self-Assembly of Ladder-Like Lanthanide Chains with Copper(I) Halide Clusters

Through adjustment of the pH value of the reaction system, two series of 3 D lanthanide(III)-copper(I) coordination polymers, namely [Ln₂ (na)₇ Cu₆ Br₅ (H₂ O)₂ ] [Ln=La (1), Ce (2), Pr (3), Nd (4), Sm (5), Eu (6), Gd (7), Tb (8)] and [La₂ (na)₇ Cu₃ Br₂ (H₂ O)₂ ]⋅H₂ O (9) (na^- =nicotinate), are synthesized hydrothermally and characterized fully. It is worth nothing that these two series of heterometallic compounds are constructed from similar ladder-like Ln-organic chains, but different copper(I) halide clusters. The luminescence properties of the compounds with Nd (4), Eu (6), and Tb (8) are also investigated.

Metal-Organic Frameworks as Chemical Sensors

Chemical sensing is of critical importance in today's society in a variety of applications from medicine to environmental pollution control, and from food safety monitoring to the detection of illicit substances and chemical weapons. Metal–organic frameworks (MOFs) have shown tremendous promise as a new class of chemical sensor materials that could be integrated into future devices. MOFs are microporous crystalline materials with infinite, periodic structures composed of organic ‘linkers’ connected to metal ‘nodes’. Their architectures can be fine-tuned by synthetic design for task-specific purposes: as chemical sensors, MOFs can be designed to interact with specific target analytes. Interest in MOFs as chemical sensors has grown significantly over the last decade, particularly given the increasing number of examples of luminescent lanthanide-based MOFs, and MOFs that display mechanochemical responses to external stimuli. In this chapter, we discuss some of the fundamental properties required to prepare MOFs for chemical sensing. We then present an extensive review of recent research in this area, showing how MOFs have been applied in a wide range of applications, including sensing of anions, cations, small organic molecules, biomolecules, as well as changes in physical conditions such as temperature and pH.

3D lanthanide metal–organic frameworks constructed from lanthanide formate skeletons and 3,5-bis(4′-carboxy-phenyl)-1,2,4-triazole connectors: synthesis, structure and luminescence

3D Ln-MOFs constructed from lanthanide formate skeletons and 3,5-bis(4′-carboxy-phenyl)-1,2,4-triazole connectors show tunable luminescence emission including white light emission.

Syntheses, structures, photoluminescence and photocatalysis of chiral 3D Cd(ii) frameworks from achiral mixed flexible ligands by spontaneous resolution

Two three-interpenetrating chiral cadmium MOF enantiomers with good photocatalytic activities for degradation of dyes were constructed from achiral flexible ligands.

Ln–Cd heterometal organic–inorganic hybrid materials based on diverse Ln–Cd oxo-cluster chains: syntheses, structures and visible luminescence

Two types of luminescent Ln–Cd heterometal complexes, I and II, based on diverse Ln–Cd oxo-clusters have been synthesized and characterized.

Bilayer architecture based on hexanuclear heterometal cluster units

An unprecedented bilayer architecture based on “head-to-head” hexanuclear heterometal clusters and linked by parallel [Cu^IL₂] motifs has been hydrothermally made.

Four 2D Ln–Cd heterometal–organic coordination polymers based on tetranuclear Ln–Cd oxo-cluster with highly selective luminescent sensing of organic molecules and metal cations

Two series of 2D-layered Ln–Cd heterometal–organic complexes based on tetranuclear [Ln₂Cd₂] oxo-clusters with selective luminescent sensing have been synthesized.