Manganese(II) and copper(II) complexes based on pentafluorobenzoate: interaction of fluorine in solid state

Abstract

The synthesis and characterization of Mn(II) and Cu(II) complexes with the general formula [Mn(Phen)2(Pfbz)2](Hpfbz) (I) and [Cu2(Bipy)2(Pfbz)4] (II) (Phen = 1,10-phenanthroline, Bipy = 2,2′-bipyridine, Pfbz = pentafluorobenzoate) are reported. I crystallizes in triclinic crystal system, space group {tiP}1 with a = 9.755(1), b = 11.302(1), c = 20.064(2) A, α = 95.799(2)°, β = 90.176(2)°, γ = 113.993(2)°, and Z = 2. Complex II crystallizes in triclinic crystal system, space group P1 with a = 9.661(1), b = 9.951(1), c = 12.891(1) A, α = 102.943(2)°, β = 98.972(2)°, γ = 96.746(2)°, and Z = 1. Of particular interest, intricate C-H…F and F…F interactions in the two crystals play important role in the formation of three dimensional supramolecular networks. F(lp)…π (lp = lone pair) interaction is recognized in the solid-state structure of II.