Download e-book for iPad: Advances in Inorganic Chemistry, Vol. 52 by AG Sykes

By AG Sykes

Advances in Inorganic Chemistry offers well timed and informative summaries of the present growth in a number of topic parts inside inorganic chemistry, starting from bioinorganic to stable kingdom. This acclaimed serial positive aspects experiences written via specialists within the zone and is an necessary connection with complicated researchers. every one quantity of Advances in Inorganic Chemistry comprises an index, and every bankruptcy is totally referenced.

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Extra resources for Advances in Inorganic Chemistry, Vol. 52

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26. The structure of [FellO6(OH)6(O2CPh)15] (158). ) oxyhydroxide surfaces, and a derivative of 67 has been made with the corrosion inhibitor for mild steel, 3-(4-methylbenzoyl)propionate (156). This keto-carboxylate shows the same carboxylate binding mode as the benzoate in 67; however, the ketone groups form hydrogen bonds to the tt3-hydroxides. It has been suggested that this H bond plays an important part in the utility of 3-(4-methylbenzoyl)propionate as a surfacemodifying agent; not only because it increases the binding strength of the ligand to a metal surface, b u t also because it imposes a specific orientation of the organic backbone with respect to the surface, creating a hydrophobic layer.

Magnetic studies show antiferromagnetic exchange between the metal centers, giving low-spin g r o u n d states. 27. The structure of [Fe16MOlo(OH)1o(O2CPh)2o](160). (Shading as in Fig. ) 60 WINPENNY Another heptadecanuclear cage, [Fe17015(OH)6(chp)12(phen)s(OMe)3] (161) can be formed by reaction of [Fe2OC16]2- with Na(chp) and phen in MeCN, followed by crystallization from EtOAc--again with a poor yield. The structure is extremely irregular, perhaps due to packing of the chelating phen ligands, which leads to "ridges" along the cage.

It is formed by controlled slow hydrolysis of a solution containing [Fe2OC16]2- and Na(O2CPh) in MeCN. The structure consists of a pentacapped trigonal prism of Fe(III) centers, with six/~3-oxides inside the prism, each bridging between one iron at the vertex of the trigonal prism, one cap on a triangular face, and one cap on a rectangular face. The six t~3-hydroxides are on the exterior of the prism, and each bridges between two Fe centers t h a t make an edge of the prism and a cap on a rectangular face.

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