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Non-macrocyclic H4OCTAPA derivatives form highly stable complexes with Bi(iii), but require an appropriate rigid spacer to enhance the inertness of the complex, as demonstrated by radiolabeling studies with 205/206Bi-nuclides.

Three topologically non-trivial cadmium(ii)-based complexes-Cd-[2]C, Cd-TK and Cd-SL-were simultaneously self-assembled in a dynamic library, individually isolated and fully characterized using solid-state, gas-phase and solution-phase techniques. Post-synthetic modifications, including reduction and transmetalation, were subsequently achieved. Imine bond reduction followed by demetallation led to the isolation of the corresponding organic molecules [2]C, TK and SL. Transmetalation of Cd-TK and Cd-SL with the zinc(ii) cation resulted in isolation of the corresponding zinc(ii)-containing complexes Zn-TK and Zn-SL.

Stereoisomerization and the unprecedented phenomenon of metal translocation in the absence of redox processes were probed in two inherently chiral bimetallic [2]catenanes by using a combination of variable-temperature 1H NMR and CD spectroscopies, X-ray crystallography, and DFT calculations.

A new dinuclear Pd(II) metallocycle consisting of a 4,4'-bipyridin-1-ium ligand with a quinoline moiety was self-assembled in aqueous solution with the aid of template molecules; the situation found in solution in which both syn and anti or only the anti atropoisomers are observed strongly relies on the intermolecular host-guest interactions.

The complex [Gd(L)(H2O)]3− (H6L = N,N′-bis(6-carboxy-2-pyridylmethyl)ethylenediamine-N,N′-methylenephosphonic acid) displays the highest water exchange rate ever measured for a Gd(III) chelate (k298ex = 8.8 × 108 s−1), which is attributed to the flexibility of the metal coordination environment.