Cations inorganic, nomenclature

The abbreviations for the investigation methods are also taken from the nomenclature of Sillen and Martel 1 (76) aiex = anion exchange cal = calorimetry ciex = cation exchange dis = distribution between two phases est = estimate red = e.m.f. with redox electrode sp = spectrophotometry. Our selected data, rather limited in number, arise from the present status of the IAEA assessment of inorganic complexes of the actinides (12). 

The following table lists the polarographic half-wave potentials (E1/2, in volts, vs. SCE, the standard calomel electrode) of inorganic cations and the supporting electrolyte used during the determination.1 5 All supporting electrolyte solutions are aqueous unless noted. See page 629 for a description of the concentration nomenclature. 

We use the term silylium ion for R3Si+, rather than silicenium ion, silylenium ion, or silyl cation, thus following IUPAC recommendations. See Nomenclature of Inorganic Chemistry G.J. Leigh, Ed. Blackwell Oxford, U.K., 1990, p. 106. 

Stock system (6.2, 16.2) The nomenclature system for inorganic compounds in which the oxidation state (or charge for a monatomic cation) is represented as a Roman numeral in the name of the compound, stoichiometry (10.1) The determination of how much a reactant can produce or how much of a product can be produced from a given quantity of another substance in a reaction. 

IR-1.5.3.2 Compositional nomenclature IR-1.5.3.3 Substitutive nomenclature IR-1.5.3.4 Additive nomenclature IR-1.5.3.5 General naming procedures IR-1.6 Changes to previous IUPAC recommendations IR-1.6.1 Names of cations IR-1.6.2 Names of anions IR-1.6.3 The element sequence of Table VI IR-1.6.4 Names of anionic ligands in (formal) coordination entities IR-1.6.5 Formulae for (formal) coordination entities IR-1.6.6 Additive names of polynuclear entities IR-1.6.7 Names of inorganic acids IR-1.6.8 Addition compounds IR-1.6.9 Miscellaneous... 

Inorganic chemists also use a further termination to indicate the name of a cation. This is the ending -ate, and it is used as a modification of the name of an oxoacid. Thus sulfuric acid, H2SO4, gives rise to sulfate, S04, phosphoric acid to phosphate, P04, and nitric acid to nitrate, NO3. The partially deprotonated anions such as HS04 and H2P04 are rather more comphcated to deal with, and are discussed in Nomenclature of Inorganic Chemistry, often referred to as the Red Book. 

Where an element symbol occurs in the first column, the unmodified element name is listed in the second and diird columns. The unmodified name is generally used when the element appears as an electropositive constituent in the construction of a stoichiometric name (Sections IR-5.2 and IR-5.4). Names of homoatomic cations consisting of the element are also constructed using the element name, adding multiplicative prefixes and charge numbers as applicable (Sections IR-5.3.2.1 to IR-5.3.2.3). The sections mentioned refer to parts of Nomenclature of Inorganic Chemistry. lUPAC Recommendations 2005, see above. 

---