Poly[octa-carbonyl-heptakis-(tetra-hydro-furan)-diironmanganesedisodium(2 Mn- Fe)]

George N Harakas; Bruce R Whittlesey

doi:10.1107/S2414314621008452

Poly[octa-carbonyl-heptakis-(tetra-hydro-furan)-diironmanganesedisodium(2 Mn- Fe)]

IUCrdata. 2021 Aug 27;6(Pt 8):x210845. doi: 10.1107/S2414314621008452. eCollection 2021 Aug.

Authors

George N Harakas¹, Bruce R Whittlesey²

Affiliations

¹ Department of Chemistry, PO Box 6949, Radford University, Radford, VA 24142, USA.
² Department of Chemistry, 1204 Boston Avenue, Texas Tech University, Lubbock, TX 79409, USA.

Abstract

The reaction of Na₂Fe(CO)₄ with an excess of MnCl₂ in tetra-hydro-furan (THF) produced {Fe₂Mn(C₄H₈O)₂Na₂(C₄H₈O)₅(CO)₈] _n or C₃₆H₅₆Fe₂MnNa₂O₁₅. The compound is a xenophilic dianion with short iron-manganese bond lengths of 2.6274 (10) and 2.6294 (10) Å. The sodium cations of the dianion are coordinated to THF ligands and have isocarbonyl inter-actions forming a polymeric (two-dimensional) structure in the crystal. One of the THF mol-ecules was modeled with the carbon atoms being statistically disordered.

Keywords: crystal structure; iron; manganese; metal cluster.