Molten zintl alloys -- Structure and bonding around the zintl border -- Structure prediction and determination of crystalline compounds -- Multivalent cation conductors -- The potential of pentagonal building blocks : from giant ring-shaped to spherical polyoxometalate clusters -- Molybdenum peroxo complexes as catalysts in olefin epoxidation -- Syntheses of rare earth organometallics, organoamides, and aryloxides from the metals -- Enzyme structures : active site structural and functional aspects of purple acid phosphatase and catechol oxidase -- Aminotroponimainates as ligands for group 3 and lanthanide complexes : coordination chemistry and catalysis -- Metalla-calix[4]arenes : how they assist the transformations of hydrocarbons into metalla-alkylidenes, of dinitrogen into metalla-nitrides, and of carbon monoxide into metalla-carbides -- Metal carbonyl cations and their derivatives : a new class of superelectrophiles -- Borylene complexes -- Silaboranes -- Carbaalanes : a new class of compounds containing clusters of aluminum and carbon atoms -- Molecular aluminium and gallium subhalides -- Recent developments in the chemistry of covalent main group azides -- Silacalix-[n]-phosphinines : sp²-phosphorus equivalents of CO matrices -- Using dinitrogen as a raw material : is there a future? -- Organoxenon compounds.