Porous zinc(II)-organic framework with potential open metal sites: Synthesis, structure and property

Abstract

Reaction of Zn(NO 3 ) 2 . 6H 2 O with 5-(isonicotinamido) isophthalic acid (H 2 INAIP) in N,N-dimethylformamide (DMF) affords a new three-dimensional (3D) coordination polymer {[Zn(INAIP)(DMF)]·0.5DMF·4H 2 O} n (1). The X-ray crystallographic structural analysis reveals that complex 1 is a 3D porous framework containing a potential open metal site inside the pores. Topology analysis confirms that complex 1 is a two-fold interpenetrated (10, 3)-b net with both metal ion and ligand acting as 3-connecting nodes. The thermal stability, variable temperature X-ray diffraction pattern and N 2 adsorption property of the complex are investigated. metal-organic framework, open metal site, N 2 adsorption, porous crystal

Structural Diversity of Zinc(II), Manganese(II), and Gadolinium(III) Coordination Polymers Based on Two Isomeric N-Heteroaromatic Polycarboxylate Ligands: Structures and Their Derived Mn2O3 for Lithium Storage Applications

“…Execution of coordination polymers (CPs) with novel designs have grabbed comprehensive attention owing to their captivating topological architectures, in addition to their potential applications in different disciplines of catalysis, gas filtration/separation, , luminescence, drug delivery, and so forth. Due to their applications in diverse areas of research, a massive number of CPs have been synthesized. − However, it is quite a challenge for crystal engineers to rationally fabricate new CPs with desired characteristic features which are strongly influenced by some synthetic factors like temperature, nature of solvent, pH value, etc., and even by the type of building block units such as ligands, cations, and some potential template moieties. − More importantly, the ligand is the key building block concerned with the design of new CPs, according to study of a great number of ligands with distinct properties and structures, which have been reported in the past few years. In view of searching for a suitable ligand, to tune the structure, property, and functionality of CPs, ample publications have been explored regarding the utility of organic ligand with its flexibility, length, and type of substituent; however, systematic tuning of the CPs with positional isomeric effect toward structural variations remains greatly unknown. − Moreover, a little work has been reported on the positional isomeric effect, which can demonstrate the investigation of the important factors of positional isomeric ligands for controlling structural differences.…”

Bifunctional 2D Cd(II)-Based Metal–Organic Framework as Efficient Heterogeneous Catalyst for the Formation of C–C Bond

“…Nowadays, porous metal–organic frameworks (MOFs), as the particular field of materials science, is being extensively studied due to their intriguing topologies and the multifunctional properties, such as separation and gas storage, catalysis science, magnetism, luminescence, etc. − Particularly interesting are those related to the application of heterogeneous catalysis. It is feasible and fundamental to predict the possible catalytic properties and activity through reasonable design and fine characterization of these materials. − For instance, the selection of ligand and metal center can direct the structural diversity with variable topological structures and accessibility to the active center .…”

Ligand and Metal Effects on the Stability and Adsorption Properties of an Isoreticular Series of MOFs Based on T‐Shaped Ligands and Paddle‐Wheel Secondary Building Units

“…In this work we aimed to investigate the stability and gas adsorption properties of two series of isoreticular MOFs based on divalent metal ions (Co 2+ , Cu 2+ , and Zn 2+ ) and two comparable T‐shaped bipolar ligands . The two ligands each have two carboxylic coordination donors but differ in their third coordination donor; one is pyridine and the other is pyridine N ‐oxide (Scheme ).…”

“…Therefore, there is great interest in discovering novel divalent-basedM OFs and to characterize their thermal/chemical stabilitya sw ell as their adsorption properties. [13,27] In this work we aimed to investigate the stabilitya nd gas adsorption properties of two series of isoreticular MOFs based on divalent metal ions (Co 2 + ,C u 2 + ,a nd Zn 2 + )a nd two comparable T-shaped [28][29][30][31][32] bipolar ligands. [33] The two ligandse ach have two carboxylic coordination donors but differ in their third coordination donor;o ne is pyridine and the other is pyridine N-oxide (Scheme 1).…”