International Research Journal of Pure and Applied Chemistry

Crystallographic and Structural Analysis of Heterometallic FeAg Complexes

M. Melník *

Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, SK-832 32 Bratislava, Slovak Republic

P. Mikuš

Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, SK-832 32 Bratislava, Slovak Republic

*Author to whom correspondence should be addressed.

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Abstract

There are 30 heterometallic Fe/Ag complexes in this review. The complexes contain the following metallic cores: FeAg, Fe₂Ag, FeAg₂, FeAgW, Fe₂Ag₂, FeAg₃, Fe₄Ag, Fe₃Ag₂, Fe₂Ag₄, Fe₂Ag₂Pd₂, Fe₆Ag, Fe₄Ag₄, Fe₄Ag₅, Fe₃Ag₆ and {FeAg}_n. The mean M-M bond distance elongated in the order: 2.614Å (Fe-Fe) < 2.660Å (Fe-Ag) < 2.806Å (Ag-Ag). The most common type of ligands is C donor for iron atoms, while for silver atoms are O and N donors. The inner coordination spheres about the iron atoms range from four to seven and ten (sandwiched) which is the most common. About the silver atoms from two to six, the four are the most common. The structural parameters are analyzed and compared with those of FeCu and FeAu complexes.

 

Keywords: Structure, heterometallics, Fe/Ag, classification, review

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