Phosphazene. XIII. Cyclokondensation von Bis‐(trichlorphosphazo)‐methyl‐Kationen

Abstract

Die fünfgliedrige Kette eines Bis‐(trichlorphosphazo)‐methyl‐hexachloroantimonats kondensiert mit NH4Cl unter Ringschluß zum 3‐substituierten Tetrachlor‐diphosphatriazin VI, mit dem Hydrochlorid eines primären Amins zum 3,6‐disubstituierten Tetrachlordiphosphatriazinium‐hexachloroantimonat IV. Die 31P1H‐Kopplung in IV wird im Hinblick auf die Änderung der Winkel‐ und Bindungsverhältnisse beim Ringschluß diskutiert.

Molecules that we made: An essay on phosphorus chemistry

“…From a study of the prototropic equilibrium between aminophosphines R 2 P-NHR and hydridophosphazenes R 2 PH‫ס‬NR, we obtained additional cyclic and acyclic examples of the latter, such as 8 and 9 [18][19][20][21][22][23][24][25][26][27][28][29][30]. 31 P NMR spectroscopy was very new at that time, and we tried to learn more about the chemical shifts from systematic investigations [31][32][33][34][35][36].…”

“…The dimer 66, trimer 67, and tetramer 68 of the ylidediyl chlorophosphine Ph 3 PCPCl constitute another, rather multiform family of heterocycles [175][176][177][178], and the choroarsine oligomers parallel them perfectly [161].…”

“…Of the tin derivatives [18][19][20], I remember, in particular, a tris(imidodiphosphinato)tin chloride. It completely decolorizes an aqueous KMnO 4 solution and becomes the permanganate 5, which can be isolated as purple crystals.…”