By hydrolysis of (NH4)(2)TiF6 ammonium oxofluorotitanates (NH4)(3)TiOF5, (N
H4)(2)TiOF4, and NH4TiOF3 were obtained and characterized, (NH4)(3)TiOF5 ha
s been synthesized for the first time. New derivatives from NH4TiOF3 with l
ower content of ammonium and fluorine are described. It was established tha
t the titanium fluorocompound assumed as NH4TiF5 should be considered as a
volatile oxofluorocomplex. (C) 1999 Elsevier Science S.A. All rights reserv
ed.