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Stoichiometric names cations

IR-5.2 Stoichiometric names of elements and binary compounds IR-5.3 Names of ions and radicals IR-5.3.1 General IR-5.3.2 Cations IR-5.3.2.1 General IR-5.3.2.2 Monoatomic cations IR-5.3.2.3 Homopolyatomic cations IR-5.3.2.4 Heteropolyatomic cations IR-5.3.3 Anions IR-5.3.3.1 Overview IR-5.3.3.2 Monoatomic anions IR-5.3.3.3 Homopolyatomic anions IR-5.3.3.4 Heteropolyatomic anions IR-5.4 Generalized stoichiometric names... [Pg.68]

Homopolyatomic cations are named by adding the charge number to the stoichiometric name of the corresponding neutral species, i.e. the element name with the appropriate multiplicative prefix. Radical dots may be added to indicate the presence of unpaired electrons. [Pg.71]

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. [Pg.74]

Schottky defects, named after W. Schottky, consist of unoccupied anion and cation sites. A stoichiometric crystalline oxide having Schottky disorder alone contains charge-equivalent numbers of anion and cation vacancies. A Frenkel... [Pg.21]

On reaction with a stoichiometric amount of hydroperoxide, catalase and horseradish peroxidase are converted to a green colored intermediate. Compound I (5). The chemical nature of Compound I has been extensively debated since its discovery by Theorell 59). Recently, Dolphin et al. 60) have demonstrated that upon one-equivalent oxidation several metalloporphyrins are converted to stable porphyrin jr-cation radicals, the absorption spectra of which possess the spectral characteristics of Compound I, namely, a decreased Soret w-n transition and an appearance of the 620-670-nm absorption bands. Since Moss et al. 61) proposed the presence of Fe(IV) in Compound I of horseradish peroxidase from Mossbauer spectroscopic measurements, it is attractive to describe Compound I as Fe(IV)-P, where P is a porphyrin w-cation radical. Then, Compound I and Compound ES become isoelectronic. Both contain Fe(IV) and a radical the former as a porphyrin radical (P ) and the latter as a protein radical (R ). Then the reaction cycles of horseradish and cytochrome c peroxidases may be compared as shown in Fig. 4. [Pg.356]

In Example 4, the first name is purely stoichiometric, whereas the second name contains more information in indicating that the compound contains a homodiatomic cation. In the last name, where the charge of the dication is specified, the prefix di for chloride is not necessary. [Pg.79]

Some Mixed Oxide Structures. There are a vast number of oxides (and also some stoichiometrically related halides) having two or more different kinds of cation. Most of them occur in one of a few basic structural types, the names of which are derived from the first or principal compound shown to have that type of structure. Three of the most important such structures will now be described. [Pg.54]

X-ray diffraction analysis of the Fei xO catalyst before reduction shows that only wiistite is present in the XRD spectrum which shows only three Fei xO peaks (I/Ig = 36, 100 and 38, 29 = 42.18°, 49.10°, and 71.90°, respectively) as illustrated in Fig. 1.10(a), while the Fe304 phase disappears completely, though it is expected to exists according to chemistry when Fe +/Fe < oo. It is due to the fact that Fe + in the samples does not compose an independent magnetite phase, but dissolves into the wiistite phase non-stoichiometrically. This indicates that, when Fe +/Fe is higher than about 3.5, iron oxides transfer to the non-stoichiometric ones with iron cation defects, namely wiistite phase expressed as Fei xO, where x is the defect concentrations of the Fe + iron cations. From a solid-chemistry viewpoint, Fei xO is a solid solution of Fe2 03 and FeO, therefore x value may be calculated by chemical analysis. [Pg.36]


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See also in sourсe #XX -- [ Pg.70 , Pg.71 ]




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Cation names

Cation names cations

Stoichiometric names

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