Phosphides, Arsenides, and Antimonides

103 -J- Lundstrom. Bor Poluch. Strukt. Sviostva, Mater. Mezhdunar Simp. Boru, 4th, 1972,1, 44 (Chem. Abs., 1975,83,124471). 

Lukashenko and D. V. Goncharuk, Tezisy Doklady-Vses. Kond, Khim. Svyazi Poluprovodn. Polymetallhk, 5th, 1974, 95 Chem. Abs., 1975, 83, 210060). 

Hjersing, A. Kjekshus, A. F. Andresen, and P. Fischer, Acta Chem. Scand., 1975, A29, 695. K. Selte, A. Kjekshus, S. Aaby, and A. F. Andresen, Acta Chem. Scand., 1975, A29, 810. 

The intermetallicantimonide system (Crj Fe,) +58b (0 x 1) has been shown to possess the NiAs structural type for all values of x.  

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Bonding and Electronic Structure of Phosphides, Arsenides, and Antimonides by X-Ray Photoelectron and Absorption Spectroscopies... 

In this review, we present a selection of studies from our own laboratory, intended to introduce a solid-state chemist to both the practical and theoretical considerations that need to be taken into account in XPS measurements of solids with substantial covalent character. Metal phosphides, arsenides, and antimonides represent such a category of solids where the bonding retains some polarity that notions of electron counting derived from the Zintl concept still prove helpful in providing a frame of reference for comparing charge distributions. We also describe the applications of XAS to complementary studies of the electronic structure of these materials. 

Excellent reviews of X-ray spectroscopic techniques are available in the literature [1,2,5-12], The description below summarizes the major characteristics of XPS and XAS, as applied, when relevant, to the analysis of metal phosphides, arsenides, and antimonides. 

Reactions with phosphorus, arsenic and antimony form phosphide, arsenide, and antimonide of potassium, respectively ... 

This chapter has been devoted to the coordination chemistry of titanium and has made no attempt to describe the more basic chemistry of this element. References to alloys, to the simple halides and oxyhalides, the oxides, sulfides, selenides, tellurides, nitrides, azides, phosphides, arsenides and antimonides are well reviewed by Clark,14 and the recent text by Greenwood and Earnshaw180 contains a good section on titanium. 

The Nitrides and Phosphides, Arsenides and Antimonides—Complex Amines and their Salts—Acid Amides—The Cyanides and the Double Cyanides. 

The phosphides, arsenides, and antimonides of the other metals are usually dark-coloured substances, with more or less metallic lustre, and therefore conductors of electricity. Some of them occur native for example, smaltine, CoAs2, a common ore of cobalt, forming silver-white crystals copper-nickel, NiAs, red lustrous crystals, and one of the chief nickel ores speiss, a deposit formed in the pots in which smaltine and copper-nickel are fused with potassium carbonate and silica, in the preparation of smalt, a blue glass containing cobalt its formula appears to be Ni8As2. Mispickel, or arsenical pyrites, is a white lustrous substance, of the formula FeSAs. 

There are no published values of the heats of atomization of boron and aluminum phosphides, arsenides, and antimonides. The published enthalpies of formation of the other A B compounds are often highly contradictory. Because of this, we estimated the enthalpies of formation of all A B semiconducting compounds by subtracting the heats of vaporization of the components of a given compound from the heat of atomization of this compound. The latter was found by summing the heats of atomization of the corresponding elemental semiconductors (Table 1). The results of such calculations are presented in Table 3. 

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