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Synthesis of the First Hydroxomonoaryltin(IV) Complexes. Crystal and Molecular Structures of Cl2(μ-OH)>2>

DOI: 10.1039/DT9920001839

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1839 - 1846 (1992)

Update date:2022-08-03

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Authors:

Vicente,JoseVicente,Jose

Chicote, Maria-TeresaChicote, Maria-Teresa

Ramirez-de-Arellano, Maria-del-Ca..Ramirez-de-Arellano, Maria-del-Ca..

Jones, Peter G.Jones, Peter G.

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Article abstract of DOI:10.1039/DT9920001839

Tin(II) chloride reacts in refluxing xylene with to give metallic mercury and (L = mpap 1 or mopap 2).Complex 1 reacts with Cl-, dimethylsulfoxide or (dmap = C6H4CH2NMe2-2) to give, respectively, - 3, 4 or 5.Several types of hydrolytic process occur when 1, 2 or react with various ligands.Thus, reacts with 1 or 2 as a base to give <2> (L = mpap 6 or mopap 7) and Hg(Hdmap)Cl2.Similarly, PhCH2NMe2 (bdma) reacts with 1 (1:1) to give the hydrolysis product 8.By treating 6 with excess of NaBr, <2> 9 can be obtained.Acetic anhydride reacts with complex 6 to give 10, but not with 8.The complex reacts with Tl(acac) (acac = acetylacetonate), NaH or Ag2O to give the hydrolysis product 11.The crystal structure of 6 was determined at -95 deg C; the dimeric doubly bridged nature of the compound was confirmed.The Sn-O bridges are asymmetric, the bond lengths depending on the nature of the trans ligand.Two molecules of diethyl ether form hydrogen bonds to the bridging OH groups; another diethyl ether molecule is disordered over a symmetry centre.The structure of compound 7 was also determined; it too is dimeric with two hydroxy bridges, but the refinement was unsatisfactory, probably because of twinning effects.

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