Ju Mei,†,‡,∥ Nelson L. C. Leung,†,‡,∥ Ryan T. K. Kwok,†,‡ Jacky W. Y. Lam,†,‡ and Ben Zhong Tang*,†,‡,§ †HKUST-Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen 518057, China ‡Department of Chemistry, HKUST Jockey Club Institute for Advanced Study, Institute of Molecular Functional Materials, Division of Biomedical Engineering, State Key Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China Guangdong Innovative Research Team, SCUT-HKUST Joint Research Laboratory, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China

Aggregation-Induced Emission: Together We Shine, United We Soar!

Metal–Organic Frameworks for Separations

Kenji Sumida, David L. Rogow, Jarad A. Mason, Thomas M. McDonald, Eric D. Bloch, Zoey R. Herm, Tae-Hyun Bae, Jeffrey R. Long

Carbon Dioxide Capture in Metal–Organic Frameworks

Luminescent Functional Metal–Organic Frameworks

Metal–organic frameworks (MOFs) display a wide range of luminescent behaviors resulting from the multifaceted nature of their structure. In this critical review we discuss the origins of MOF luminosity, which include the linker, the coordinated metal ions, antenna effects, excimer and exciplex formation, and guest molecules. The literature describing these effects is comprehensively surveyed, including a categorization of each report according to the type of luminescence observed. Finally, we discuss potential applications of luminescent MOFs. This review will be of interest to researchers and synthetic chemists attempting to design luminescent MOFs, and those engaged in the extension of MOFs to applications such as chemical, biological, and radiation detection, medical imaging, and electro-optical devices (141 references).

Luminescent Metal–Organic Frameworks

Two stable 3D metal−organic frameworks are constructed by the hydrothermal reactions of Cd(NO3)2·4H2O and IDC3- using bpy and Bu4NBr as templates. Both structures show the same frameworks, which are composed by the nanoscale cages via sharing the single-layer walls.

Two stable 3D metal-organic frameworks constructed by nanoscale cages via sharing the single-layer walls.

Three 3D lanthanide anionic metal−organic frameworks {K5[Ln5(IDC)4(ox)4]}n·(20H2O)n with 1D channels were synthesized under hydrothermal conditions [Ln = Gd (1), Tb (2), and Dy (3)]. The K+ ions within the 1D channel are easily exchanged with various cations. The emission intensities of TbIII in 2 increased significantly upon the addition of Ca2+ ions, while the introduction of other metal ions caused the intensities to be either unchanged or weakened.

Three-dimensional lanthanide anionic metal-organic frameworks with tunable luminescent properties induced by cation exchange.

Three 3D coordination polymers of {(H2bpy)[Cd9(HIDC)4(IDC)4(bpy)4]·8H2O}n (1), [Zn3(IDC)2(bpy)(H2O)2]n (2), and {[Zn3(IDC)2(bpy)3]·(bpy)·8H2O}n (3) (H3IDC = imidazole-4,5-dicarboxylic acid, bpy = 4,4‘-bipyridyl) were hydrothermally synthesized by controlling the final pH values of the solutions of ca. 6, and characterized by single-crystal X-ray diffraction. In compound 1, unprecedented “double-square” units of [Cd4(μ3-HIDC)2(μ4-IDC)(μ5-IDC)]24- are linked by [Cd(bpy)2]2+ to generate a 1D chain of {[Cd8(μ3-HIDC)4(μ4-IDC)2(μ5-IDC)2]Cd(bpy)2}n2n-, and the 1D chains are further bridged by μ2-bpy to form a 2D brick-wall-like network of {[Cd8(μ3-HIDC)4(μ4-IDC)2(μ5-IDC)2(μ2-bpy)2]Cd(bpy)2}n2n- (≡ [Cd9(HIDC)4(IDC)4(bpy)4]n2n-). Each “brick” contains one protonated bpy ion of H2bpy2+ to get a neutral compound of {(H2bpy)[Cd9(HIDC)4(IDC)4(bpy)4]·8H2O}n. The adjacent 2D brick walls are perpendicularly packed and interlinked by μ4-IDC3- and μ5-IDC3- bridges to generate a 3D open framework of 1. The species of μ3-HID...

Long Jiang

Papers

Two stable 3D metal-organic frameworks constructed by nanoscale cages via sharing the single-layer walls.

Three-dimensional lanthanide anionic metal-organic frameworks with tunable luminescent properties induced by cation exchange.

Three 3D Coordination Polymers Constructed by Cd(II) and Zn(II) with Imidazole-4,5-Dicarboxylate and 4,4‘-Bipyridyl Building Blocks

Multifunctional organic fluorescent materials derived from 9,10-distyrylanthracene with alkoxyl endgroups of various lengths

A highly stable dynamic fluorescent metal-organic framework for selective sensing of nitroaromatic explosives.