| 释义 |
phosphazene Chem.|ˈfɒsfəziːn|
Also -ine.
[ad. G. phosphazin (Staudinger & Meyer 1919, in Helv. Chim. Acta II. 619), f. phosph-in phosphine + azin azine.]
Any compound containing the group {b1}N{b2}P{b1}{btr1}{bbr1}, esp. as a repeating unit of a ring or chain in which two substituents are attached to each phosphorus atom. Cf. phosphonitrile, phosphonitrilic a.
1920Jrnl. Chem. Soc. CXVIII. 105 Tertiary phosphines combine more or less readily with the most varied aliphatic diazo-compounds, yielding derivatives, for which the name phosphazines is proposed, in accordance with the scheme CR2:N{vddd}N + PR3 → R2C:N{b1}N:PR3. 1958J. R. Van Wazer Phosphorus & its Compounds I. vi. 341 The compound (C6H5)3PNN{b2}C(C6H5)2, a typical phosphazine, is a yellow, stable solid with slightly basic properties. 1961Inorganic Polymers (Chem. Soc. Special Publ. No. 15) 115 The family of polymers, which are called variously phosphinic nitrides, phosphonitriles, and phosphazenes. These names all describe a bonding system characterized by the repeating unit {b1}PR2{b2}N{b1}. 1970New Scientist 5 Nov. 275/1 The cyclic nitrogen and phosphorus compounds known as phosphazenes will make life easier for textiles manufacturers in the UK and the US... Phosphazenes, which are incorporated into viscous rayon during the spinning process,..are ideal for flame proofing. 1974Nature 29 Nov. 427/3 A simple survey of the structural chemistry of the phosphazines. |