Metal-organic frameworks are nano-porous adsorbents of relevance to gas separation and catalysis, and separation of oxygen from air is essential to diverse industrial applications. The ferrous salt of 2,5-dihydroxy-terephthalic acid, a metal-organic framework of the MOF74 family, can selectively adsorb oxygen in a manner that defies the classical picture: adsorption sites either do or do not sh...

In the dense metal-organic framework Na[Mn(HCOO)$_3$], Mn$^{2+}$ ions ($S=\frac{5}{2}$) occupy nodes of a `trillium' hyperkagome net. We show that this material exhibits variety behaviour characteristic geometric frustration: N\'eel transition is suppressed well below magnetic interaction strength; short-range order persists far above temperature; and susceptibility pseudo-plateau at $\frac{1}{...

A novel hexanuclear {Mn(6)} coordination complex with octahedral topology has been prepared and was subsequently used as a building unit for the construction of coordination polymers and metal-organic gels; the latter exhibit thixotropic behavior and reversible sol-gel phase transitions.

Metal-organic framework (MOF) based stimuli-responsive polymers (coordination polymers) exhibit reversible phase-transition behavior and demonstrate attractive properties that are capable of altering physical and/or chemical upon exposure to external stimuli, including pH, temperature, ions, etc., in a dynamic fashion. Thus, their conformational change can be imitated by the adsorption/desorpti...