Syntheses and Structures of Three Mononuclear Coordination Compounds Containing Six- and Seven-Coordinated Manganese(II) Ions

Abstract

The reactions of Mn(CF3COO)2 (1) with Ν,Ν,N′,N′-tetramethylethylenediamine (tmen), 2,2′-bipyridine (bipy) and triethanolamine (tea) yield three new mononuclear coordination compounds: trans-[Mn(tmen)2(CF3COO)2] (2), cis-[Mn(bipy)2(CF3COO)2] (3), and [Mn(tea)2](CF3COO)2 (4). The X-ray structures of the compounds 2, 3, and 4 are described. The seven-coordination of the manganese(II) ion in 4, as well as the inequivalency of the two tea molecules coordinated to Mn(II) make this compound unique.