Li2GeMo3O8: a novel reduced molybdenum oxide containing Mo3O13 cluster units
نویسندگان
چکیده
The crystal structure of the title compound, dilithium germanium trimolybdenum octa-oxide, consists of distorted hexa-gonal-close-packed oxygen layers with stacking sequence ABAC along [001] that are held together by alternating lithium-germanium and molybdenum layers. The two Li(+) and Ge(4+) ions all have site symmetry 3m. and occupy, respectively, tetra-hedral and octa-hedral sites in the ratio 2:1. The Mo atom has a formal oxidation state of +3.3 and occupies an octa-hedral site (site symmetry .m.) and forms strongly bonded triangular cluster units [Mo-Mo distance = 2.4728 (8) Å] involving three MoO6 octa-hedra that are each shared along two edges, constituting an Mo3O13 unit.
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