Properties of tetrasulphur tetranitride in some reactive solvents

Abstract

This thesis describes -1. The completion of the preliminary investigation of S(_4)N(_4)/SOCl(_2)/MCl(_x) systems commenced by Dr. J.S. Padley (Ph.D. Thesis, University of Durham, July 1967). 2. The carrying out of a more detailed study of the S(_4)N(_4)/SOCl(_2)/AlCl(_3) and S(_4)N(_4)/SOCl(_2)/FeCl(_3) systems (which the above noted preliminary investigation indicated would be the most satisfactory systems for more detailed study).3. The investigation of some S(_4)N(_4)/(constant metal chloride)/(varying solvent related to SOCl(_2) systems; since SOCl(_2) plays an active role in the S(_4)N(_4)/SOCl(_2)/MCl(_x) systems, the effect of varying the solvent used repays study. It has been found that most of the products obtained from the S(_4)N(_4)/ SOCl(_2)/MCl(_x) system could be grouped into only five categories, by the criterion of near infrared spectrum: it is believed that this correlation will be of particular value as more structural data become available. In the case of most of the compounds prepared, the group of near infrared spectra into which the product obtained from MCl(_x) falls can be tentatively correlated with the efficiency of MCl(_x) as a chlorination catalyst. It is shown that the systems S(_4)N(_4)/MCl(_x)/SO(_2)Cl(_2), and.S(_4)N(_4)/MCl(_x)/SCl(_2), are likely to justify an extensive investigation on the scale of that made into S(_4)N(_4)/MCl(_x)/SOCl(_2) systems. Results are discussed generally with a view to assisting the understanding and systematisation of (metal-)sulphur-nitrogen(-chlorine) chemistry as a whole, and particularly with reference to the likely structures of the products obtained, which products are believed to Include a number of compounds novel to sulphur-nitrogen chemistry.