Theoretical Investigation of the Topology of Spiroborate-Linked Ionic Covalent Organic Frameworks (ICOFs).

A novel type of ionic covalent organic framework (ICOF) with a spiroborate linkage has been recently designed and synthesized by Zhang and co-workers (Ionic Covalent Organic Frameworks with Spiroborate Linkage, Angew. Chem. Int.

Tetranuclear cobalt(ii)-isonicotinic acid frameworks: selective CO capture, magnetic properties, and derived "CoO" exhibiting high performance in lithium ion batteries.

Two new 3D cobalt metal-organic frameworks (MOFs), [Co4(CH3COO)(in)5(μ3-OH)2]·2H2O (1) and [Co4(SO4)2(in)4(DMF)2]·3DMF (2) (Hin = isonicotinic acid), have been prepared through the anion template method. Compound 1 consists of rare odd-number connected (9-connected) cubane-like SBUs, while compound 2 consists of 8-connected high-symmetry square-planar clusters. Magnetic studies indicate that compound 1 exhibits spin-canting antiferromagnetic ordering, while compound 2 shows antiferromagnetic behavior.

A Nano-Sized [Mn ] Metallamacrocycle as a Building Unit to Construct Stable Metal-Organic Frameworks: Effective Gas Adsorption and Magnetic Properties.

A stable hex-type metal-organic framework (MOF, WMOF-1) was constructed by nano-sized [Mn ] metallamacrocycle secondary building unit, being the one with the highest nuclearity of manganese wheel-like node in the microporous MOF. WMOF-1 displays an effective gas adsorption and the antiferromagnetic behavior.

Selective chiral symmetry breaking and luminescence sensing of a Zn(ii) metal-organic framework.

The chiral Zn(ii) metal-organic framework [(CH3)2NH2]5[Zn1.5(Zn3O)(TATAT)2]·9DMF·17H2O (1) has been prepared from achiral precursors Zn(NO3)2·6H2O and 5,5',5''-(1,3,5-triazine-2,4,6-triyl)tris(azanediyl)triisophthalate (H6TATAT) in a solvent mixture of DMF/MeOH/H2O/HCOOH without any chiral sources. In particular, the non-random handedness excess (1P ≫ 1M) was generated and was verified by single-crystal X-ray diffraction and solid-state circular dichroism spectroscopy.