A novel tetranuclear mixed-metal platinum(II)-copper(I) complex, [Pt 2 (dppm) 2 (CtCPh) 4 ‚ {Cu(MeCN)} 2 ](PF 6 ) 2 , has been synthesized by the reaction of its precursor complex, [Pt 2 -(dppm) 2 (CtCPh) 4 ], with [Cu(MeCN) 4 ]PF 6 . Their crystal structures and luminescence behavior have been determined. Perturbation of the spectroscopic and emission properties has been accomplished by a change in the Pt‚‚‚Pt distance as well as the π-acceptor ability of the alkynyl unit via Cu(I) coordination.

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Cage rage: Chiral tetrahedral cages are diastereoselectively self‐assembled from enantiopure C2‐symmetric biphenyl bis(β‐diketonate) linkers and C3‐symmetric octahedral Fe3+ or Ga3+ ions (see picture; Fe purple, C blue, O red; cavity shown as an orange sphere). The porous polyhedra exhibit metal‐dependent chiroptical behavior and act as hosts for the crystallization separation of racemic alcohols with up to 99.5 % ee.

The luminescent metal-metal bonded dimer of a known hexanuclear platinum-copper acetylide complex has been synthesized and characterized by X-ray crystallography; the complex is shown to exist in the dimeric form only in concentrated solution through a Pt-Pt bonding interaction.

A new series of dinuclear platinum(II) complexes, [Pt 2 (µ-dppm)(dppm-P,P′)(µ-CdCRPPh 2 CH 2 PPh 2 -P)(CtCR)] 2+ (R ) alkyl), has been synthesized, and the structure of one of the complexes was confirmed by X-ray crystallography. A proposed mechanism to account for their formation from the corresponding alkynyl precursors is suggested. Their luminescence properties are also reported.