Nitrides structural data

Table 12.3 Aluminum Nitride Structural Data at 298K...

Table 3. Structural data for nitrides with the bixbyite structure...

Table 9. Structural data for some binary transition metal nitrides...

The structural data of boron nitride is summarized in Table 12.2. 

The structural data for aluminum nitride is summarized in Table... 

Aluminum nitride is a highly stable material with the unusual combination of high thermal conductivity comparable to diat of metals and high electrical insulation comparable to the best insulators. Its characteristics and properties are summarized in Table 13.7 (see Ch. 12 for structural data). The reported property values often vary considerably and the values given here are a general average.t K K ... 

Boron nitride, cubic BNcub 0.752 Calculated from band structure data... 

Tableir.l-W Effective masses of electrons ( ) and holes (/Wp) for aluminium compounds (in units of the electron mass mo). Aluminium nitride (AIN), calculated values aluminium phosphide (AIP), calculated from band structure aluminium arsenide (AlAs), calculated from band structure data Aluminium antimonide (AlSb), theoretical estimates...

Figure 7 The entropy-related quantity , the cohesive energy Es, and the melting temperature for transition metal carbides (filled symbols) and nitrides (unfilled symbols) in the NaCl-type crystal structure. Data as in Figs. 8-10.

Tellurium nitride was first obtained by the reaction of TeBt4 with liquid ammonia more than 100 years ago. The empirical formula TeN was assigned to this yellow, highly insoluble and explosive substance. However, subsequent analytical data indicated the composition is Tc3N4 which, in contrast to 5.6a and 5.6b, would involve tetravalent tellurium. This conclusion is supported by the recent preparation and structural determination of Te6N8(TeCl4)4 from tellurium tetrachloride and tris(trimethylsilyl)amine (Eq. 5.5). The TceNs molecule (5.12), which is a dimer of Tc3N4, forms a rhombic dodecahedron in which the... 

Cubic BC2N. Hetero-diamond B C—N compounds have recently received a great interest because of their possible applications as mechanical and optical devices. The similar properties and structures of carbon and boron nitrides (graphite and hexagonal BN, diamond, and cubic BN) suggested the possible synthesis of dense compounds with all the three elements. Such new materials are expected to combine the best properties of diamond (hardness) and of c-BN (thermal stability and chemical inertness). Several low-density hexagonal phases of B,C, and N have been synthesized [534] while with respect to the high-density phases, different authors report contradictory data [535-538], but the final products are probably solid mixtures of c-BN and dispersed diamonds [539]. 

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