Abstract

The title compound, [Mo 2 (I) 4 (C 9 H 7 ) 2 ], is synthesized by the reaction of MoI 3 (thf) 3 (thf = tetrahydrofuran) and sodium indenyl, followed by the further reaction of an intermediate product with tetraphenylphosphonium iodide to form tetraphenylphosphonium indenyltriiodomolybdate. The title compound forms from the latter compound by loss of tetraphenylphosphonium iodide. The product is a tetra-μ-iodo-bridged dinuclear molybdenum complex with two terminal indenyl ligands. The indenyl groups are η 5 -bonded to the Mo atoms. The molecule sits on a crystallographic inversion center and has non-crystallographic symmetry C 2h .The metal-metal distance is 2.720 (4) A

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