Marike Du Plessis

• Stellenbosch University

In its crystalline state a dinuclear Cu-based metallocycle discrimi-nates between the three isomers of xylene with liquid-phase selec-tivity in the order p-xylene  m-xylene  o-xylene. This selectiv-ity holds over a wide concentration range, with para-xylene con-centrations as low as 5%. Single-crystal X-ray diffraction and gas chromatography fu...

Volatile guest molecules can be absorbed into crystals of metallocyclic hosts by sublimation at room temperature. Guest inclusion triggers a chromatic response.

Single crystals of a previously reported porous metallocycle [Ag2L2](BF4)2•2CH3CN (1), where L is the ligand 1,4-bis(2-methylimidazol-1-ylmethyl)benzene, were grown from acetonitrile and immersed in different organic solvents. The crystals thus treated were subjected to single-crystal X-ray diffraction analysis, which revealed that the acetonitrile...

The liquid-phase epitaxy (LPE) method was effectively implemented to deliberately grow/construct ultrathin (0.5-1 μm) continuous and defect-free ZIF-8 membranes. Permeation properties of different gas pair systems (O2-N2, H2-CO2, CO2-CH4, C3H6-C3H8, CH4-n-C4H10) were studied using the time lag technique.

Three different crystal forms were obtained from the crystallisation of a flexible imidazole based ligand and CdBr(2) under different conditions. Structural analysis reveals that the correlation between the three metallocyclic compounds can be described in terms of isostructurality, solvatomorphism and supramolecular isomerism.