Gold complexes phosphides

Good examples of cyclic (mostly polycyclic) structures are provided by metal alkoxides. Some spectacular rings are the gold (I)-phosphide complexes of the type [AuPR2] (n = 3, 4 or 6). ... 

Figure 1.32 Oligomeric gold(l) complexes with phosphide or phosphine ligands.

Interest in the synthesis and structural characterisation of less common metalloorganophosphide systems has continued. A range of alkali metal complexes of the phosphide anion (48) has been prepared from the lithio-phosphide by simple metathesis with alkali metal alkoxides. The lithio-phosphide exists as a dimer, but crystallisation of the sodium and potassium drivatives in the presence of TMEDA results in the formation of monomeric species. The caesium triphosphenide (49), involving a phosphorus analogue of the allyl anion, has been prepared from the previously described sodium complex. Unlike the sodium and potassium complexes, which are monomeric, the caesium complex has a polymeric structure. A variety of arylphosphide complexes of magnesium, calcium, strontium and barium have been prepared and their solid state structures characterised. Cop-per(I)-, silver(I)- and gold(I)-complexes of the cyclo-(P ion have also... 

Other recent materials created using these ordered arrays include porous nickel phosphide film for lithium ion batteries, porous aluminum films for lithium electrodeposition, macroporous silicon films for optics, cobalt metal nanoarrays of various morphologies for biomedicine," macro-/ nanoporous gold films for electrocatalysis, " silver bowls as SERS substrates, and complex macroporous gold and polypyrrole films. ... 

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