Other Frameworks Based on Covalent Bonds

Other Frameworks Based on Covalent Bonds 

Infinite-Chain Structures 1. Light-Induced Crystal Oscillation 

In addition to their novel frameworks, low-dimensional metal-containing coordination polymers are of interest with respect to their electrical, magnetic, and optical properties, and possibly their catalytic behavior. For example, the study of photochromic compounds, which undergo thermal irreversible and fatigue-resistant photochro- 

Despite the fact that silver(I)-aromatic complexes of benzene, cyclo-phane, indene, acenaphthene, naphthalene, and anthracene have been reported, the corresponding organometallic polymers of pyrene (Lag) and peiylene (L ) have been crystallographically characterized only recently (187). X-ray structure determination of the complex with pyrene [Ag2(Le8)(C104)2] reveals that it exists in the solid state as an 

Mixed-Valence Copper Complex with Chain Structure 

The mixed-valence copper complexes with polymeric chain structures have been described. Reaction of the cyclic thioether ligand tet- 

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VIII. Other Frameworks Based on Covalent Bonds... 

A variety of other structures are possible with silicate minerals, including sheets and three-dimensional frameworks. In all cases, the structure includes bonds that are predominantly covalent and directional. They can therefore be viewed as being based on increasingly crosslinked inorganic polymers. 

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