Tetra-μ3-selen-ido-1:2:3κ3Se;1:2:4κ3Se;1:3:4κ3Se;2:3:4κ3Se-tetrakis-[(η5-methyl-cyclo-penta-dien-yl)molybdenum(III)](6 Mo-Mo)

Akito Ouchi; Tsugiko Takase; Shinji Inomata

doi:10.1107/S2414314623006570

Tetra-μ₃-selen-ido-1:2:3κ³Se;1:2:4κ³Se;1:3:4κ³Se;2:3:4κ³Se-tetrakis-[(η⁵-methyl-cyclo-penta-dien-yl)molybdenum(III)](6 Mo-Mo)

IUCrdata. 2023 Aug 1;8(Pt 8):x230657. doi: 10.1107/S2414314623006570. eCollection 2023 Aug.

Authors

Akito Ouchi¹, Tsugiko Takase¹, Shinji Inomata¹

Affiliation

¹ Faculty of Symbiotic Systems Science, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan.

Abstract

The title cluster compound, [Mo₄(η⁵-C₅H₄Me)₄(μ₃-Se)₄], was synthesized from the reaction of [Mo(η⁵-C₅H₄Me)(CO)₃]₂ with grey selenium in refluxing xylene solution under a nitro-gen atmosphere. The complete cluster is generated by a crystallographic twofold axis and contains an Mo₄Se₄ cubane-like core surrounded by four η⁵-methylcyclo-pentadienyl ligands. In the core, the four molybdenum atoms are connected to each other to form a tetra-hedron, with a selenium atom capping each face. The Mo-Mo bond lengths vary from 2.9857 (5) to 3.0083 (3) Å and the Mo-Se separations range from 2.4633 (4) to 2.4693 (5) Å.

Keywords: crystal structure; molybdenum cluster; selenide ligand.