Synthesis and structural studies of bis(1,10-phenanthrolinethiocyanatemercury) tetracarbonyliron

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The bis(1,10-phenanthrolinethiocyanatemercury)tetracarbonyliron was prepared from bis(thiocyanatemercury)tetracarbonyliron and 1,10-phenanthroline and crystallized from hot acetone solution as [Fe(CO)4(HgSCN)2(phen)2]·C3H6O, which was subjected to a full IR and X-ray crystallographic characterization. The iron atom is octahedrally coordinated by four carbonyl groups and two mercury atoms in cis positions. The coordination geometry of the mercury atoms is a distorted square-based pyramid since each one is coordinated to one iron, one sulphur, one mercury and two nitrogen atoms. The FeHg distances are 2.549(3) and 2.564(3) Å, and the HgFeHg angle is 78.01(9)°. © 1992.



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Polyhedron, v. 11, n. 7, p. 799-803, 1992.