Progress in Inorganic Chemistry, Vol. 53 by Kenneth D. Karlin

By Kenneth D. Karlin

This sequence presents articles giving the nation of analysis for the main lively issues within the box, written via chemists instructing at universities around the globe. Karlin (chemistry, Johns Hopkins U.) has edited the newest variation, which incorporates seven articles at the following subject matters: solid-state and resolution routes to manipulating hexanuclear transition steel chalcohalide clusters; doped semiconductor nanocrystals; stereochemical elements of steel Xanthate complexes; trivalent uranium; comparability of the chemical biology of NO and HNO; the origins and effects of adjustments of nucleobase pKa values upon steel coordinatoin; and the functionalization of myoglobin. A cumulative index of all fifty four volumes is incorporated.

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Linked IÀ ÀAsÀ ÀI. I2. IÀ 4. Antimony(V) Complexes The antimony(V) complexes [SbMe3(S2CNR2)2] (288, 289), [{SbMe3 (S2CNR2)}2(m-O)] (290), and [SbAr4(S2CNR2)] (Ar ¼ phenyl or p-tolyl) (291, 292) have been prepared from the reaction of corresponding antimony halides (or dihalides) with the appropriate dithiocarbamate salts, although the reaction of SbPh3Cl2 with sodium diethyldithiocarbamate gave triphenylantimony(III), SbPh3, and tetraethylthiuram disulfide (291). 30 A (291) and [SbAr4(S2CNEt2)] (Ar ¼ phenyl or p-tolyl) (292) there is little asymmetry.

In contrast, the monodentate (the nonbonding Sn. 47 A carbonyl oxygen in the 2-(2-oxo-N-pyrrolidinyl)ethyl complex does not interact significantly with the metal, and the dithiocarbamate is weakly bidentate. The N donor of the pyridyl ring of the 2-(4-pyridyl)ethyl ligand, R, in [SnPh2R(S2CNMe2)] cannot coordinate to the metal center in an intramolecular sense: Spectroscopic data suggest that the complex is monomeric in solution and polymeric, with intermolecular coordination of N, in the solid state.

Although the [TeR2(S2CNR2)2] complexes undergo slow disproportionation to yield TeR2 and the corresponding thiuram disulfide, they are sufficiently stable to allow detailed studies to be carried out. , monodentate ! bidentate), so that, on the NMR time scale, the Te atom has a 1:2:2:2 geometry, including the lone pair (355). Although it is slow on the NMR time scale, intermolecular ligand exchange also occurs readily in solution, allowing mixed-ligand complexes of the type [TeR2(S2CNR02 )L] (L ¼ uninegative bidentate ligand) to be prepared (355, 357, 360, 362–365): the complexes are structurally analogous to the parent bis(dithiocarbamates).

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