Can-Zhong Lu

Bio: Can-Zhong Lu is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Crystal structure & Hydrothermal synthesis. The author has an hindex of 36, co-authored 211 publications receiving 4827 citations. Previous affiliations of Can-Zhong Lu include Huaqiao University.

Hydrothermal Assembly of a Novel Three-Dimensional Framework Formed by [GdMo12O42]9- Anions and Nine Coordinated GdIII Cations

Abstract: The three-dimensional framework of [Gd(H2O)3]3[GdMo12O42]vdt·3H2O, which was synthesized from hydrothermal reaction, is built up from Silverton-type anions linked by nine coordinated gadolinium(III...

Construction of Ag/1,2,4-triazole/polyoxometalates hybrid family varying from diverse supramolecular assemblies to 3-D rod-packing framework

Abstract: Eight members of the Ag/1,2,4-triazole/polyoxometalates (POMs) hybrid supramolecular family, namely, [Ag4(dmtrz)4][Mo8O26] (dmtrz = 3,5-dimethyl-1,2,4-triazole, 1), [Ag6(3atrz)6][PMo12O40]2·H2O (3atrz = 3-amino-1,2,4-triazole, 2), [Ag2(3atrz)2]2[HPMoVI10MoV2O40] (3), [Ag2(dmtrz)2]2[HPMoVI10MoV2O40] (4), [Ag2(trz)2]2[Mo8O26] (trz = 1,2,4-triazole, 5), [Ag2(3atrz)2][Ag2(3atrz)2(Mo8O26)] (6), [Ag4(4atrz)2Cl][Ag(Mo8O26)] (4atrz = 4-amino-1,2,4-triazole, 7), and [Ag5(trz)4]2[Ag2(Mo8O26)]·4H2O (8), were synthesized through hydrothermal reactions of 1,2,4-triazole or its derivatives with appropriate silver salts and molybdates. Crystal structure analysis reveals that the POM-dependent Ag−1,2,4-triazolate units in these hybrid compounds form a novel tetranuclear cluster (1), a unique double calix[3]arene-shaped hexamer (2), zigzag chains (5 and 6), helix chains (3, 4, and 8), and an interesting looped chain (7). A series of hydrogen bonding-based supramolecular assemblies varying among the 0-D + 0-D (1 and 2), 0-...

Coligand Modulated Six-, Eight-, and Ten-Connected Zn/ Cd-1,2,4-Triazolate Frameworks Based on Mono-, Bi-, Tri-, Penta-, and Heptanuclear Cluster Units

Abstract: Using nonsubstituted 1,2,4-triazole and the second bridging ligands as coligands, a series of three-dimensional metal–organic frameworks based on different secondary building units (SBUs), namely, Zn2(trz)3(SCN) (1), Zn2(trz)2(ox) (2), Cd3(trz)2(suc)Cl2(3), [Cd5(trz)6(OAc)2Cl2(H2O)2]·2H2O (4), and [Zn7(trz)6(1,2,4,5-BTC)2(H2O)6]·8H2O (5) (trz = 1,2,4-triazole, ox = oxalate, suc = succinic acid, 1,2,4,5-BTC = 1,2,4,5-benzenetetracarboxylate), have been synthesized and structurally characterized with the aid of single-crystal X-ray diffraction. The SBUs in 1–5 vary from mononuclear, binuclear, linear trinuclear, linear pentanuclear to heptanuclear d10-1,2,4-triazolate polynuclear clusters. Compound 1 presents a complicated 3,6-connected topology based on three nonequivalent nodes. Compound 2 adopts a 6-connected 3D network of distorted α-Po topology that is built from dizinc units. The structure of 3 consists of two intersecting (4,4) grids which generate a novel self-penetrating 4,8-connected net with (456...

Crystal structures and magnetic and luminescent properties of a series of homodinuclear lanthanide complexes with 4-cyanobenzoic ligand.

Abstract: A series of homodinuclear lanthanide(III) complexes with the 4-cba ligand, [La2(4-cba)6(phen)2(H2O)6] (1) and [Ln2(4-cba)6(phen)2(H2O)2] (Ln = Pr (2), Nd (3), Sm (4), Eu (5), Gd (6), and Dy (7); 4-Hcba = 4-cyanobenzoic acid; phen = 1,10-phenanthroline), have been synthesized and structurally characterized by single-crystal X-ray diffraction. In 1, two water molecules bridge two nine-coordinated La ions, and six 4-cba ligands coordinate to the two La ions in terminal mode. In the isostructural complexes 2−7, two eight-coordinated Ln ions are connected by four bidentate 4-cba ligands, and another two 4-cba ligands terminate the two Ln ions. The variable-temperature magnetic properties of 2−7 have been investigated. Complex 7 shows a significant ferromagnetic interaction between Dy(III), while no magnetic interaction exists between Gd(III) ions in 6. In 2−5, the value of χMT decreases with decreasing temperature, but the magnetic interactions between the Ln(III) ions cannot definitely be concluded. Notably, ...

Construction of Cd/Zn(II)-1,2,4-Triazolate Coordination Complexes via Changing Substituents and Anions

Abstract: A series of zero- to three-dimensional Cd/Zn(II)-1,2,4-triazolate coordination complexes have been obtained by changing the anions and the substituents on the triazole ring. Cd2(2-pytrz)2Cl4 (1) and Cd3(dpatrz)4Cl6 (2) (2-pytrz = 3,5-di(pyrid-2-yl)-1,2,4-triazole and dpatrz = 3,5-di(n-propyl)-4-amino- 1,2,4-triazole) have discrete binuclear and trinuclear structures, respectively. Cd3(atrz)4Cl6 (3) and Cd(atrz)2(SCN)2 (4) (atrz = 4-amino-1,2,4-triazole) are polymeric 1D chains constructed from trinuclear cadmium units and mononuclear cores. Cd(datrz)I (5), Zn(dmtrz)Cl (6), and Cd3(dmatrz)4(N3)6 (7) (datrz = 3,5-diamino-1,2,4-triazole, dmtrz = 3,5-dimethyl-1,2,4-triazole, and dmatrz = 3,5-dimethyl-4-amino-1,2,4-triazole) all show two-dimensional layer structures. Complexes 5 and 6 are 2D grids based on binuclear clusters and present (4.82)metal(4.82)trz topology. Complex 7 is of 2D (4,4) topology when trinuclear cadmium units are regarded as four-connected nodes. For complexes 1−7, weak hydrogen-bonding co...

Hydrogen storage in metal–organic frameworks

Abstract: New materials capable of storing hydrogen at high gravimetric and volumetric densities are required if hydrogen is to be widely employed as a clean alternative to hydrocarbon fuels in cars and other mobile applications. With exceptionally high surface areas and chemically-tunable structures, microporous metal–organic frameworks have recently emerged as some of the most promising candidate materials. In this critical review we provide an overview of the current status of hydrogen storage within such compounds. Particular emphasis is given to the relationships between structural features and the enthalpy of hydrogen adsorption, spectroscopic methods for probing framework–H2 interactions, and strategies for improving storage capacity (188 references).

Luminescent Metal–Organic Frameworks

Abstract: 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).

Engineering coordination polymers towards applications

Abstract: The development in the field of coordination polymers or metal-organic coordination networks, MOCNs (metal-organic frameworks, MOFs) is assessed in terms of property investigations in the areas of catalysis, chirality, conductivity, luminescence, magnetism, spin-transition (spin-crossover), non-linear optics (NLO) and porosity or zeolitic behavior upon which potential applications could be based.

Polyoxometalate clusters, nanostructures and materials: From self assembly to designer materials and devices

Abstract: Polyoxometalates represent a diverse range of molecular clusters with an almost unmatched range of physical properties and the ability to form structures that can bridge several length scales. The new building block principles that have been discovered are beginning to allow the design of complex clusters with desired properties and structures and several structural types and novel physical properties are examined. In this critical review the synthetic and design approaches to the many polyoxometalate cluster types are presented encompassing all the sub-types of polyoxometalates including, isopolyoxometalates, heteropolyoxometalates, and reduced molybdenum blue systems. As well as the fundamental structure and bonding aspects, the final section is devoted to discussing these clusters in the context of contemporary and emerging interdisciplinary interests from areas as diverse as anti-viral agents, biological ion transport models, and materials science.