Themed collection Dalton turns 50 – celebrating our board members past and present

John Dalton is the “face of inorganic chemistry” in the RSC journal Dalton Transactions. Who was he and what did he do?.

This synthesis and diverse reactivity of uranium(III) and uranium(II) complexes is discussed.

The presence of a cyclodextrin cavity in a chelating P,N ligand promotes the exclusive formation of 1 : 1 ligand/metal complexes. A Ni(II) complex of the ligand is a very selective catalyst for ethylene dimerisation as a result of metal confinement.

A novel halogen bonding bis(iodotriazole)-imidazolium axle containing [2]rotaxane is capable of strong halide and sulfate binding in highly competitive aqueous–organic solvent mixtures.

A centrosymmetric dinuclear Dy-based complex, Dy₂L₂(H₂L)Cl₂(EtOH)₂, was successfully synthesised, and exhibits a typical SIM behaviour and unusual triple relaxation pathways.

The carboxylate adducts of OsO₄ ([OsO₄(X)]⁻, X⁻ = AcO⁻ and BzO⁻) were isolated and their structures, physicochemical properties and reactivity were explored. The C(sp³)−H oxygenation mechanism by the carboxylate adducts was discussed based on their kinetics and DFT studies.

The book of Nature displays a wealth of continuously varying molecular geometries. See what can be done with just six atoms.

New gold carbazolate complexes based on a CCC-type carbene ligand give red photoemitters with sub-microsecond excited state lifetimes.

Umbelliferyloxymethyl phosphonates:non-chelating ionophores that A protect rat hippocampal cells from toxic Aβ42 B partition Zn from water to octanol C inhibit Zn promoted aggregation of Aβ42, D delay Zn signaling by FluoZin-3 in neuronal cells.

DSC photoconversion efficiencies of up to 0.93–0.95% have been achieved for a new heteroleptic iron(II) N-heterocyclic carbene sensitizer employing n-butyl chains.

GED has evolved hugely in the 50 years of Dalton Transactions. Combining experimental and theoretical data now allows complicated structures free from intermolecular interactions like iso-propyl(tert-butyl)(trichlorosilyl)phosphine to be revealed.

A trefoil knot and a Solomon link were successfully prepared based on a carefully selected flexible phthalic diimide ligand and precisely controlled stacking interactions.

The synthesis and biological investigations of the first bioconjugates of ruthenium(II) dipyridophenazine complexes with two different covalently attached cell penetrating peptides (CPPs) is described.

Synthesis of this ¹⁸⁷Os-enriched organo-osmium azopyridine anticancer complex, has allowed determination of ¹⁸⁷Os NMR J-couplings to ligand ¹H and ¹³C, and the ¹⁸⁷Os chemical shift. The complex was also characterised by X-ray crystallography and MS.

Three chelators were developed for potential use in ^203/212Pb-based radiopharmaceuticals. Studies probing the coordination chemistry of the metal complexes and radiolabeling capabilities revealed a compound for future study.

A resistance to the bathochromic shift was found in a series of Ir(III) dipyrrinato phosphors, which show the deep red to near-infrared emissions, and their OLEDs afforded a peak EQE of 2.8%.

A paramagnetic T-shaped cobalt(I) complex, stabilised by a monoanionic NNN pincer ligand, induces reductive bond cleavage and related transformations of small molecules.

Careful ligand design led to the detection of either an unprecedented, stable, 4-membered palladacycle or an off-cycle catalyst degradation product.

A potentially decadentate oxinate-containing ligand was synthesized and assessed through solution thermodynamics studies, concentration dependent radiolabeling and serum stability assays with [^nat/111In]In³⁺ and [^nat/89Zr]Zr⁴⁺.

The binding of anions to the surface of an octanuclear coordination cage H^W, which carries a 16+ charge, in aqueous solution, was studied using a fluorescence displacement assay with fluorescein as the probe.

A thermally stable and highly electrically conductive Pd(III) 1D complex [Pd(dabdOH)₂Cl]Cl₂ was newly synthesized.