Strong Closed-Shell Interactions in Inorganic Chemistry.

Light-Emitting Self-Assembled Materials Based on d(8) and d(10) Transition Metal Complexes.

Photoluminescence Properties of Multinuclear Copper(I) Compounds.

The distinction between valence electrons and essentially inactive core electrons is the basis of many classifying concepts in chemistry. However, it has recently been recognized that this is an oversimplification and should, at least in some areas of chemistry, be modified. Many cases are known where cations with closed d10 configurations are subject to homoatomic interactions that influence structure and properties. A characteristic and surprisingly uniform structural feature (e.g., of a number of compounds containing monovalent coinage metals) is a clusterlike assembly of d10 cations that corresponds in geometry and bond lengths to fragments of the metal structures themselves. Further evidence for a special type of bonding in such compounds is provided by their physical properties; for example, the absorption in the UV/VIS region shows a drastic redshift and the compounds are often conductors or semiconductors. The d electrons in such cases have obviously lost their pure “core” nature. All bonding models so far proposed for such systems involve mixing of higher orbitals.

Homoatomic d10–d10 Interactions: Their Effects on Structure and Chemical and Physical Properties

Relatively little attention has been paid to metal ions with the nd[sup 10] and nd[sup 10](n+1)s[sup 2] (i.e., [open quotes]s[sup 2][close quotes]) configurations. In combination with various anionic and neutral ligands, these metal ions form a wide variety of cluster compounds, some of which have been known to be luminescent when irradiated with ultraviolet light. Prominent examples of this family are cuprous iodide clusters such as Cu[sub 4]I[sub 4]-(py)[sub 4] (1, py = pyridine), which shows [open quotes]luminescence thermochromism[close quotes]; that is, they display bright emissions with colors markedly dependent on the temperature. Here the authors present an overview of recent studies carried out both independently and jointly in the authors' laboratories focusing upon the remarkably rich, but relatively unexplored, photochemical and photophysical properties of various tetra-and hexanuclear d[sup 10] and s[sup 2] metal ion clusters in solution. 74 refs., 4 figs., 2 tabs.

/pdf/photochemical-and-photophysical-properties-of-tetranuclear-vka15ses5b.pdf

Photochemical and photophysical properties of tetranuclear and hexanuclear clusters of metals with d10 and s2 electronic configurations

/pdf/the-crystal-and-molecular-structure-of-the-gold-i-549ym9oqws.pdf

The Crystal and Molecular Structure of the Gold(I) Dipropyldithiocarbamate Dimer

/pdf/the-crystal-and-molecular-structure-of-the-silver-i-63zynkwylo.pdf

The Crystal and Molecular Structure of the Silver(I) Dipropylmonothiocarbamate Hexamer.

/pdf/the-crystal-and-molecular-structure-of-the-copper-i-8jq0k2gxh3.pdf

The Crystal and Molecular Structure of the Copper(I) Dipropylthiocarbamate Hexamer.

Kristallstruktur von thallium(i)-dipropyl-dithiocarbamat(i)

/pdf/the-crystal-structure-of-thallium-i-dipropyldithiocarbamate-17vd72pu8z.pdf

The Crystal Structure of Thallium(I) Dipropyldithiocarbamate.

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