whole_DonovanWilliamFrancis1964_thesis.pdf (2.59 MB)
X-ray diffraction studies of some group VIA compounds.
thesisposted on 2023-05-26, 23:32 authored by Donovan, W. F.(William Francis)
Of the known halides of chromium, molybdenum and tungsten only about one-third have been studied by X-ray structural techniques (see Table 1). The structures reported for these halides can be divided into three categories. 1. The two or three-dimensional lattice type is the most common. The lattice usually contains MX6 octahedra (M = Cr, Mo, W I X = halogen), the overall packing of which gives the appropriate polymeric form of the halide. Examples of this type are the di- and tri-halides of chromium. 2, Molecular crystals are formed by some halides. Amongst known structures this is confined at present to the hexahalides, e.g., WC16. 3. Polynuclear complexes may be formed by some of the halides, e.g. dimeric molybdenum pentachloride (MO2C110).
Rights statementCopyright 1964 the Author - The University is continuing to endeavour to trace the copyright owner(s) and in the meantime this item has been reproduced here in good faith. We would be pleased to hear from the copyright owner(s). Thesis (Ph.D.) - University of Tasmania, 1964. Includes bibliography