Derivatives of oxoacids

Lead does not appear to form a simple hydroxide, Pb(OH)2, [cf. Sn(OH)2, p. 384], Instead, increasing the pH of solutions of Ptf salts leads to hydrolysis and condensation, see [Pb60(0H)6]4+ (p, 395). 

Oxoacid salts of Ge are usually unstable, generally uninteresting, and commercially unimportant. The tetraacetate Ge(OAc)4 separates as white needles, mp 156°, when GeCl4 is treated with TlOAc in acetic anhydride and the resulting solution is concentrated at low pressure and cooled. An unstable sulfate Ge(S04)2 is formed in a curious reaction when GeCl4 is heated with SO3 in a sealed tube at 160°  

Numerous oxoacid salts of Sn and Sn have been reported and several basic salts are also known. Anhydrous Sn(N03)2 has not been prepared but the basic salt Sn3(0H)4(N03)2 can be made by reacting a paste of hydrous tin(II) oxide with aqueous HNO3 the compound may well contain the oligomeric cation [Sn3(OH)4] + illustrated on p. 384, Sn(N03)4 can be obtained in anhydrous reactions of 

The crystal structures of the oxalates 806264 and K28n(C264)2.H26 show interesting features  

Christie, R. A, Howie and W. Moser, Inorg. Chim. Acta. 36, L447-L448 (1979). 

Most oxoacid derivatives of lead are Pb compounds, though Pb(OAc)4 is well known and is extensively used as a selective oxidizing agent in organic chemistry. It can be obtained as 

---

This section considers compounds in which X (Cl, Br or I) is bonded to both O and F, i.e. F XOm. Oxofluorides -OF and peroxofluorides -OOF have already been discussed (p. 638) and halogen derivatives of oxoacids, containing -OX bonds are treated in the following section (p. 883). 

Table IR-8.2 Acceptable common names, functional replacement names, and systematic (additive) names for some functional replacement derivatives of oxoacids... 

Amides - Derivatives of oxoacids R(C=0)(0H) in which the hydroxy group has been replaced by an amino or substituted amino group. [5]... 

Amides - Derivatives of oxoacids R(C=OXOH) in which the hydroxy group has been replaced by an amino or substituted amino group. [5] Amine oxides - Compounds derived from tertiary amines by the attachment of one oxygen atom to the nitrogen atom R3N+-0. By extension the term includes the analogous derivatives of primary and secondary amines. [5]... 

It seems that most organotin derivatives of oxoacids have a strong tendency to self-organize into supramolecular architectures in which the tin atom achieves a preferred five- or six-coordinate geometry. 

---