Carbon chalcogenides

The oxides MO are best obtained by calcining the carbonates (pp. 114 and 122) dehydration of the hydroxides at red heat offers an alternative route. BeO (like the other Be chalcogenides)... 

Carbon-13. The molecular structure of phosphino-thioformamides (27) and their chalcogenides have been studied in the solid and liquid states.57 The, 3C n.m.r. spectra of solid methylphenyl phosphonium salts have been studied using high power decoupling cross-polarisation and slow magic angle rotation. 

The mono- and di-chalcogenides of dppm contain an acidic methylene carbon which can undergo deprotonation. NMR spectroscopic studies on the relative acidities of these methylene groups show an increase in acidity for the series R2PCH2PR2 < R2P(0)CH2P(0)R2 < R2P(S)CH2P(S)R2 <... 

Invented less than a decade ago,1 EISA has rapidly developed into a universal technique for fabrication of organized porous and patterned nanocomposite materials, ranging from metal oxides and chalcogenides to carbons, polymers, and metals.2,3 In addition to generating ordered mesoporous films, this technique may also be used to incorporate functional molecules and... 

Lead-calcium-silver anodes, 74 777 Lead-calcium-tin alloys, 74 775-776 Lead carbonates, 74 794-795 Lead chalcogenides, 79 157 Lead chloride, 74 785 Lead chromate... 

Wu, H., et al., Solvothermal synthesis and optical limiting properties of carbon nanotube-based hybrids containing ternary chalcogenides. Carbon, 2012. 50(13) p. 4847-4855. 

Unlike the aryl methyl selenides, the alkyl aryl selenides with alkyl groups of two carbons or more are able to undergo scission of the radical cation at the Cgp-Se bond, yielding the ArSe radical (Fig. 35). This can impact product distribution, particularly under conditions in which water is not present to react with the radical cation. Trends in ease of oxidation typically seen in series of chalcogen compounds can still be observed, and are consistent with trends in the diaryl chalcogenides and aryl methyl chalcogenides. 

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