
%0 Journal Article
%A Stabb, DJ 
%T Basic halides and related species of molybdenum(III). I. The empirical formulae and unit cell dimensions of the basic halides
%J Australian Journal of Chemistry
%D 1976/04/01
%V 29
%N 4
%P 711-715
%K 
%R https://doi.org/10.1071/CH9760711
%U https://www.publish.csiro.au/paper/CH9760711 
%X The basic halides MoOX(H2O), (X = F, Cl) were examined by vacuogravimetric and evolved gas analysis and by X-ray and electron diffraction techniques. The basic chloride prepared by slow crystallization had y = 3.08, with an orthorhombic unit cell 0.723 by 0.820 by 1.805 nm. Basic chlorides produced by rapid precipitation were less crystalline, of slightly larger unit cell dimensions and had 3.0 < y < 4.3. The water in excess of y = 3 was loosely held, while three water molecules per molybdenum were more strongly held. The fluoride, which could not be obtained with the perfect MoOF(H2O)3 stoichiometry, was isomorphous (cell parameters 0.710 by 0.823 by 1.824 nm for [MoOF0.96(OH)0.04(H2O)3] (H2O)0.28). It is concluded that the only hydrate of MoOX existing under normal conditions is MoOX(H2O)3, not the previously reported tetrahydrate. 
