14649-08-2Relevant academic research and scientific papers
THE STRUCTURES OF PENTAPHENYLCYCLOTRIPHOSPHAZATRIENE-DERIVATIVES; A 31P N.M.R. INVESTIGATION
Keat, R.,Rycroft, D. S.,Miller, V. R.,Schmulbach, C. D.,Shaw, R. A.
, p. 121 - 122 (2007/10/02)
A 31P n.m.r. study of a compound, previously thought to be a hydroxyphosphazene, N3P3(OH)Ph5, shows that it is present in solution as an oxophosphazene, N3HP3(O)Ph5.Its condensation product, (N3P3Ph5)2O gives a 31P spectrum which can be analysed as an A2BB'A'2 spin system, confirming that it has an oxygen-bridged phosphazene structure.
The kinetics of pyridine-catalyzed hydrolysis of chloropentaphenylcyclotriphosphonitrile
Schmulbach,Miller
, p. 2189 - 2192 (2007/10/11)
For the pyridine-catalyzed hydrolysis of chloropentaphenylcyclotriphosphonitrile in acetone, over 90% of the reaction occurs according to the equation (C6H5)5ClP3N3 + H2O + C5H5N = (C6H5)5(OH)P3N3 + C5H5NHCl Kinetic data support a nucleophilic base-catalysis mechanism (C6H5)5ClP3N3 + C5H5N k2?k1 (C6H5)5P3N3·C 5H5N+ + Cl- (C6H5)5P3N3·C 5H5N+ + H2O →k3 (C6H5)5(OH)P3N3 + C5H5NH+ Computer analysis of the data gave an average value of k1 = (1.2 ± 0.1) × 10-3 M-1 sec-1 at 25° in a solution containing 0.100 M pyridinium tetrafluoroborate. The new compounds fluoropentaphenylcyclotriphosphonitrile and N-pentaphenylcyclotriphosphonitrilopyridinium perchlorate were isolated.
