Tin complex

A redox process also occurs in the reaction of selenium diimides with bis(amino)stannylenes. Eor example, the cyclic stannylene McaSi)//-N Bu)2Su reacts in a 1 1 molar ratio with BuN=Sc=N Bu to give a spirocyclic tin complex, which reacts with a second equivalent of the stannylene to generate a Sn-Sn bond [d(Sn-Sn) = 2.85 A, /( Sn- Sn) = 13,865 Hz)] (Scheme 10.6). ... 

The Pourbaix diagram" for tin (Fig. 4.41) refers only to solutions in which formation of soluble tin complexes or protective layers of insoluble salts does not occur. There are few instances of the formation of protective layers other than oxide on tin, and although the formation of soluble complexes is more common, the diagram provides a useful general indication of the... 

The mixture may be allowed to stand for a longer period (overnight) without harm. Frequently a granular precipitate of a tin complex of the amine separates. 

Tin, nitratodiphenyltris(dimethy) sulfoxide)-structure, 1,77 Tin, nitratotris(triphenyltin)-structure, 1, 47 Tin,tetrakis(acetato)-stereochemistry, 1,94 Tin, tetrakis(diethyldithiocarbamato)-angular parameters, 1, 57 Tin, tetrakis(ethyldithiocarbamato)-angular parameters, 1, 57 Tin, tetranitrato-stereochemistry, 1, 94 Tin, tri-n-butylmethoxy-, 3, 208 Tin alkoxides physical properties, 2, 346 Tin bromide, 3, 194 Tin bromide hydrate, 3,195 Tin carboxylates, 3, 222 mixed valence, 3, 222 Tin chloride, 3, 194 hydroformylation platinum complexes, 6, 263 Tin chloride dihydrate, 3,195 Tin complexes, 3, 183-223 acetyl ace tone... 

The conversion of nitro compounds to aldehydes or ketones has been carried out with better yields and fewer side reactions by several alternative methods. Among these are treatment of the nitro compound with tin complexes and NaHS03, ... 

Mg or Ca in MeOH, " baker s yeast, Sm/l2, LiMe2NBH3, and tin complexes prepared from SnCl2 or Sn(SR)2. This reaction, combined with RX —+ RN3 (10-65), is an important way of converting alkyl halides RX to primary amines RNH2 in some cases the two procedures have been combined into one laboratory step. Sulfonyl azides (RSO2N3) have been reduced to sulfonamides (RSO2NH2) by irradiation in isopropyl alcohol and with NaH. ... 

The reaction between Bul2Si(OH)2 and Cl4Sn affords, after workup and crystallization from CH2C12, the tin complex 51 containing a bridging But2Si(OH)2 molecule, which is cocrystallized with (H0Bu 2Si)20, the structure of which is described in Section IV,D,1 (272). 

From Me2SiCl2 and 2 cis-hexacoordinated 9 is isolated (Eq.(5)) whose structure may be compared to the analogous tin complex 10 (see Table 1). 

Analysis of the 1H and 13C NMR spectra of the tin complexes, being derivatives of various di-Schiff bases, [46] has revealed the dependence of the position of tin centre on the type of linker between the two imine units and the metal coordination number.110... 

Tellurium coprecipitated with Mg(OH)2 Tin complexed with sodium diethyldithio carbamate Tin adsorbed onto Dowex 1-X8 anion exchange column, desorbed with 2 M nitric acid... 

This section deals with PES studies on alkyl-and chloro-tin complexes, with acetylacetonate and related ions as ligands53,137. Cauletti and coworkers53 investigated the following compounds ... 

F and 119Sn NMR. Fluorine exchange occurs 165 between 4- and 5-coordinated tin complexes, possibly through chlorine and fluorine-bridged species. 

These reactions are compared with those of the equivalent 1-alkenyl HgCl compounds. Some differences are observed, notably that the mercury complexes will react with PhSe—SePh, while the tin complexes undergo no reaction at all. The reactions with ChHg, QHgCl and RHgCl, however, are broadly similar to that shown in reaction 26. 

Pentacoordinate tin complexes can also be isolated from the reaction of diphenyldichlorostannane with 4 (R = Pr, R = Me) (38). The structure of the Ph2SnCl2 complex 60 was shown to be very similar to that of 54 by X-ray crystallography. Thus, the geometry around... 

The mechanism of action of tin complexes is not known. Deoxyribonucleic acid may not be the target, and involvement in protein synthesis and energy metabolism is possible. 

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