European Journal of Inorganic Chemistry

Four new helical metal–organic frameworks have been synthesized by using 3-[4-(carboxymethoxy)phenyl]propanoic acid ligands and Zn^II, Cd^II, Co^II, and Ni^II salts. The shapes of the helical chains include single-screw, lemniscate, and tetraflexural helices, and their photoluminescence and magnetism are investigated.

The synthesis and immobilisation of a series of ruthenium and osmium compounds with novel pyridine and thiophene linking groups are reported. The monolayers are studied both electrochemically and by surface-enhanced Raman spectroscopy.

A metalloenzyme consisting of a Rh-based catalytic head and a fatty acid derived tail bound to β-lactoglobulin catalyzes the asymmetric transfer hydrogenation of a ketone with an enantiomeric excess (ee). Calculations based on the crystal structure reported here show that the complex head can adopt discrete orientations, which may explain the ee.

A uranyl hybrid compound with urea-bearing dipropionic acid as a well-designed ligand is prepared. The urea group plays a role in coordination and in hydrogen-bonding interactions. The uranyl ion can be selectively complexed and precipitated by this urea-bearing ligand from alkaline spring water in the presence of competing metal ions.

Sulfur-substituted alkynes show contrasting behaviour in their reactions with Ti^II and Co^I. Whereas the Ti^II centre in the titanocene η²-alkyne complex effects a cleavage of the alkyne C_sp–S bond concomitant with C–C coupling, Co^I in the [Co(triphos)] η²-alkyne complex leads to loss of the benzyl groups to give either a heterobimetallic Co/Ru acetylene dithiolate complex or a dithiolene complex.