Phosphonitrilic halides

The aromaticity of such inorganic ring systems as borazine, the phosphonitrilic halides (69), and the thiazyl halides (70) has been studied extensively from a theoretical viewpoint. ... 

The Phosphonitrilic Halides and Their Derivatives N. L. Paddock and H. T. Searle... 

Chemical properties, phosphonitrilic halides and, 1 357-365 Chemical reactions... 

Phosphonitrilic halides (continued) primary amines and, 1 360-362 secondary amines and, 1 350-362 tertiaiy amines and, 1 362-363 structural theory further aspects of, 1 375 structure, 1 365-366 high polymer and, 1 372 medium polymers and, 1 368-372 spectroscopic data and, 1 369-372 structural theory and, 1 372-375 tetrameric compounds and, 1 367-368 trimeric compounds and, 1 366-367 Phosphonium cations, 9 243-250 halogenated, 9 243-249 salts... 

Primary amines, phosphonitrilic halides and, 1 360-362 Prismane, 18 57 protein, 47 245-247 crystallography, 47 232-233 from Desulfovibrio desulfuricans, 47 227-228, 229, 232... 

NMR, see Nuclear magnetic resonance phosphonitrilic halides and, 1 369-372 polysulhdemetal complexes, 31 109-111 Rieske and Rieske-type proteins, 47 113-137... 

Activation Analysis D. N. F. Atkins and A, A. Smales The Phosphonitrilic Halides and Their Derivatives... 

Partial ammonolysis of phosphorus(V) chloride or bromide and of monoalkyl- or -aryl-substituted dichloro- or dibromophos-phines in the presence of chlorine or bromine is a general method for the synthesis, respectively, of the corresponding simple or substituted phosphonitrile halides. " This type of reaction may yield either cyclic or linear poljuners, depending upon the temperature, solvent, reaction time, and/or reagent ratio. 

The siloxanes have been dealt with in detail elsewhere 15, 65) this review is concerned almost exclusively with the phosphonitrilic halides. The chlorides were first recognised as a homologous series by Stokes 85, 89), who isolated and investigated the lower members, from trimer to heptamer. This, and more recent work, was reviewed in 1943 by Audrieth et al. (3). 

The physical properties of the phosphonitrilic halides are presented in the three groups, general physical properties, crystallographic data, and solubility data. The general physical properties are summarized below. Each literature reference refers to all values following the preceding reference. ... 

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