Crystal structure of tetra-kis-(μ-n-butyrato-κ(2) O:O')bis-[chlorido-rhenium(III)](Re-Re).

Michael P Thomson,Manuel A S Aquino,Natasha F O'Rourke,Ruiyao Wang

doi:10.1107/s1600536814020273

Michael P Thomson, Manuel A S Aquino + Show 2 more

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https://doi.org/10.1107/s1600536814020273

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Abstract

With an inversion center at the mid-point of the two ReIII atoms, the title compound, [Re2Cl2{O2C(CH2)2CH3}4], exhibits a paddle-wheel or lantern-type structure with four n-butyrate groups bridging two ReIII atoms in a syn–syn fashion. The axial chloride ligands together with the Re—Re quadruple bond [2.2330 (3) Å] complete an essentially octahedral geometry around each ReIII atom. There is little distortion, with an Re—Re—Cl bond angle of 176.18 (3)° and typical cis-O—Re—O bond angles ranging from 89.39 (11) to 90.68 (11)°. There are two molecules in the unit cell, and no significant intermolecular interactions were noticed between molecules in the crystal.

Highlights

With an inversion center at the mid-point of the two ReIII atoms, the title compound, [Re2Cl2{O2C(CH2)2CH3}4], exhibits a paddle-wheel or lantern-type structure with four nbutyrate groups bridging two ReIII atoms in a syn–syn fashion
There are two molecules in the unit cell, and no significant intermolecular interactions were noticed between molecules in the crystal
Supporting information for this paper is available from the IUCr electronic archives (Reference: WM5055)

Summary

Introduction

With an inversion center at the mid-point of the two ReIII atoms, the title compound, [Re2Cl2{O2C(CH2)2CH3}4], exhibits a paddle-wheel or lantern-type structure with four nbutyrate groups bridging two ReIII atoms in a syn–syn fashion. ADepartment of Chemistry, St. Francis Xavier University, PO Box 5000, Antigonish, Nova Scotia, B2G 2W5, Canada, and bDepartment of Chemistry, Queen’s University, Kingston, Ontario, Canada, K7L 3N6. Received 30 August 2014; accepted 9 September 2014

Results

Conclusion