Chelation solid-state materials

MOFs have emerged as a novel class of porous solid-state materials with hybrid chemical composition of organic molecules bearing a wide array of functional groups capable of metal coordination and/or chelation and metal ions/clusters. Several attributes of such materials have captured the interest of scientists in academia and industry because of the wide potential applications in current demanding technologies. MOF attributes are directly correlated to the tunable hybrid chemical composition, crystallinity, and modular nature. 

Tris-chelate complexes made with either Ru(ll) or Os(ll) and diimine ligands have been used as active materials in solid-state Organometallic complexes derived from (ppy)2lr(diimine) and a number of... 

Rare earth laser action has been obtained for two groups of liquids metallo-organic and inorganic aprotic liquids. The first group are chelate lasers and are reviewed by Lempicki and Samelson (1966) research on aprotic materials and systems for high-power, pulsed liquid lasers are reviewed by Samelson and Kocher (1974). Stimulated emission in both liquids occurs between 4f states of trivalent rare earths. Optical pumping is via xenon-filled flashlamps in optical cavities and resonators similar to those used in solid-state lasers. Rare earth liquid lasers have only been operated pulsed. 

Native, multi-subunit KLH also should not be frozen. Freeze-thaw effects cause extensive denaturation and result in considerable amounts of insoluble material. Commercial preparations of native KLH are typically freeze-dried solids that no longer fully dissolve in aqueous buffers and do not display the protein s typical blue color due to loss of chelated copper. The partial denatured state of these products often makes conjugation reactions difficult. 

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