Enantioselective chiral sorption of 1-phenylethanol by homochiral 1D coordination polymers

Abstract

Enantioselective resolution by coordination polymers has the potential to provide a high degree of discrimination by virtue of well-defined pores and the possibilty of identifying and modifying binding sites. Differences...

Coordination Polymers from an Amino-Functionalized Terphenyl-Tetracarboxylate Linker: Structural Multiplicity and Catalytic Properties

“…[Zn 2 (μ 6 -tpta)(μ-H 2 biim)(H 2 O) 2 ] n (8). In the asymmetric unit, this 3D MOF contains a Zn1 center, a μ 6 -tpta 4− linker (half), a μ-H 2 biim ligand (half), and a water ligand (Figure 7).…”

“…Currently, coordination polymers (CPs) stand as a highly popular class of compounds because of the enormous diversity of their topological and structural types. − These materials feature prospective applications in gas separation and adsorption, − development of sensors, − heterogeneous catalysis, − and a diversity of other fields. − A significant progress in the development of synthetic methods for coordination polymers has been achieved, allowing the isolation of compounds with predefined structures. Nevertheless, in the cases where solvothermal or hydrothermal synthetic methods are involved, the structures of coordination polymers are often influenced by diverse reaction parameters (pH, T , solvent, concentration, etc.)…”

“…Hence, we describe in this study the preparation and analysis of eight new CPs/MOFs (Scheme 1) obtained from metal(II) salts, H 4 tpta, and different auxiliary ligands. These products vary from 1D (2, 5) and 2D (3,4,6) (8).…”

Crystal Engineering of a Chiral Crystalline Sponge That Enables Absolute Structure Determination and Enantiomeric Separation

“…Since the report of POST-1 in 2000, it has been realized that CMOMs offer potential utility in asymmetric catalysis, chiral detection, and enantiomeric separations. ,− However, the use of high-cost homochiral ligands, especially derivatives of binaphthyl and Schiff bases, is a hindrance to the development of CMOMs into higher technological readiness levels. ,, Synthetic derivatives of amino acids (particularly glycine, alanine, and histidine) have also been used as ligands to build flexible CMOMs and further studied as crystalline sponges (e.g., ZnGGH ) − and enantiomeric separation materials (e.g. TAMOF-1 ). − …”

High-Enantioselectivity Adsorption Separation of Racemic Mandelic Acid and Methyl Mandelate by Robust Chiral UiO-68-Type Zr-MOFs

“…However, they often suffer from operational complexity, high price, low efficiency, and instability. Adsorption separation was found to be a simple, rapid, efficient, and byproduct-free process that is environmentally friendly and does not release any toxic substances. − Therefore, the development of chiral adsorption materials with excellent enantioselectivity and competitiveness is necessary to achieve ideal and efficient enantioseparation. Homochiral metal–organic frameworks (HMOFs) are an emerging class of chiral porous materials that have aroused considerable interest due to their unique chirality and well-defined intrinsic cavities. − Very importantly, HMOF materials can provide pivotal confined chiral spaces and preset chiral recognition sites where stereospecific interactions for different enantiomers occur, which is essential for chiral recognition and separation.…”