Abstract

Publisher Summary This chapter presents a survey on the structural aspect of cubane-type compounds with Mo 4 O 4– n ,S n ( n = 0, 3, or 4) cores and incomplete cubane-type compounds with Mo 3 O 4– n S, and W 3 O 4– n S n (n = 0-4) cores. Compounds with mixed-metal cubane-type cores Mo 3 MS 4 (M = metals) are also discussed in the chapter. Notes on synthetic procedures are presented. Although the solid-state chemistry of molybdenum has been developed with, for example, infinite repeat MO 3 S 4 units, only discrete compounds with these cores are presented in this chapter. This review has been organized primarily according to the number of Mo and W metals (three or four) and secondarily according to the number of bridging sulfur atoms. In contrast to the situation, many incomplete cubane-type clusters with MO 3 O 4 – n S n cores have been prepared and the structures have been determined by X-ray structure analyses. The results obtained are presented in the chapter. There are three kinds of cubane-type cores in this series of complexes. There is the single cubane-type, Mo 3 MS 4 , the double cubane-type, Mo 3 S 4 MMS 4 Mo 3 , and the sandwich cubane-type, Mo 3 -S 4 MS 4 Mo 3 .

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