Endings of names

Ending of Name Names of complex cations and neutral molecules have no distinguishing termination but in the case of anionic complexes the suffix "ate" is attached to the name of central atom. For example, the names of some compounds with anionic complexes are ... 

In Chap. 6 we placed Roman numerals at the ends of names of metals to distinguish the charges on monatomic cations. It is really the oxidation number that is in parentheses. This nomenclature system is called the Stock system. For monatomic ions, the oxidation number is equal to the charge. For other cations, again the oxidation number is used in the name. For example, Hg2 + is named mercury(I) ion. Its charge is 24- the oxidation number of each atom is 4-1. Oxidation numbers are also used for other cations, such as dioxovanadium(V) ion, V02". The prefix 0x0- stands for oxygen. Oxidation numbers can be used with nonmetal-nonmetal compounds, as in sulfur(VI) oxide for SO3, but the older system using prefixes (Table 6-2) is still used more often. 

Ending of names of neutral saturated parent hydrides of elements of Groups 13-17, e.g. thallane, cubane, cyclohexane, cyclohexasilane, diphosphane, tellane, 24-tellane. Cf. Section IR-6.2.2 and Table IR-6.1. 

Combined ending of names of anions resulting from the removal of a hydron from a parent hydride with an ane name, formed by adding the suffix ide , e.g. methanide, CH3. ... 

Ending of names of anions and esters of inorganic oxoacids having the ic ending in the acid name, e.g. nitrate, phosphonate, trimethyl phosphate, and of anions and esters of organic acids, e.g. acetate, methyl acetate, thiocyanate. See Tables IR-8.1 and IR-8.2 and Table IX for more examples of ate anion names. See also inate , onate . 

Ending of names of formally electronegative homoatomic constituents in compositional names, e.g. disulfur dichloride. Cf. Section IR-5.4. 

Ending of name of any anion with an ide name (see above) acting as a ligand, e.g. chlorido, disulfido(2—) or disulfanediido, hydrazinido, hydrazine-1,2-diido, methanido. Cf. Sections IR-7.1.3 and IR-9.2.2.3 and Table IX. 

Ending of names of anions and esters of inic oxoacids, e.g. borinate, phosphinate. 

Ending of names of large heteromonocycles (more than 10 ring atoms) with the maximum number of non-cumulative double bonds for use in fusion nomenclature, e.g. 2H- -oxa-4,8,11-triazacyclotetradecine. 

Ending of names of many elements and their cations, e.g. helium, seaborgium, thallium(l-l-), and of the name of any new element (cf. Ref. 1 of Chapter IR-3). 

Ending of names of anions and esters of onous oxoacids, e.g. phosphonite, tetrathionite. Modification of the onite ending of an anion name used when the anion acts as a ligand. 

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