Aurophilicity versus mercurophilicity: impact of d10-d10 metallophilic interactions on the structure of metal-rich supramolecular assemblies.

Treatment of U-shaped, binuclear Cu(I) complexes 1,1' (1, counterion: BF(4)(-); 1', counterion: PF(6)(-)) with metal cyanide linear linkers K[Au(CN)(2)] (3) and Hg(CN)(2) (4) lead to formation of new supramolecular assemblies 5,5' and 6,6', respectively, in good yield. These derivatives have been characterized by NMR spectroscopy, IR, and X-ray diffraction studies. Derivative 5,5' are supramolecular metallacycles in which intramolecular aurophilic interactions between the Au(I) metal centers of the linkers are observed.

The first example of a Pt...Pt interaction in platinum(ii) complexes bearing bulky tri-tert-butyl-2,2':6',2''-terpyridine pendants via conformational control of the calix[4]arene moiety.

An unprecedented short Pt...

Synthesis, structure and luminescence studies of heterometallic gold(I)-copper(I) and -silver(I) alkynyl clusters/aggregates.

A series of pentanuclear gold(I)-copper(I) and -silver(I) mixed-metal alkynyl complexes, [(n)Bu(4)N][Au(3)M(2)(C triple bond CC(6)H(4)R-p)(6)] [M = Cu, R = OMe, O(n)Bu, O(n)Hex, Me, Et; M = Ag, R = Et, O(n)Hex] have been synthesized. The complexes were found to be emissive both in the solid state and in fluid solutions. DFT calculations at the B3LYP level of theory were performed on [Au(3)M(2)(C triple bond CC(6)H(4)Me-p)(6)](-) (M = Cu, Ag) to provide an understanding on the electronic structure of the complexes.

Synthesis, characterisation, electrochemistry and luminescence studies of 9-anthrylgold(I) complexes.

Reaction of mono- and dinuclear gold(I) phosphine chloride precursors with an excess of organolithium reagent C14H9Li in dry diethyl ether or THF gave mononuclear [(PPh3)Au(C9H14)] and dinuclear [(P--P)Au2(C14H9)2] (P--P = dppm, dcpm) and [(dcpm)Au2Br(C14H9)], respectively. These complexes were found to be emissive both in the solid state and in fluid solutions.