{N,N′-Bis­[2-(di­phenyl­phosphan­yl)ethan-1-yl­idene]ethyl­enedi­amine}bromido­(p-toluene­sulfonyl­methyl isocyanide)iron(II) tetra­phenyl­borate

In the title compound, [FeBr(C₉H₉NO₂S)(C₃₀H₃₀N₂P₂)][B(C₆H₅)₄], the Fe^II ion is in a distorted octa­hedral CBrN₂P₂ coordination geometry with a P—Fe—P angle of 109.95 (3)°. The relative orientation of the p-toluene­sulfonyl­methyl isocyanide ligand is defined by the C—S—C—N torsion angle of 67.1 (2)°. In the crystal, pairs of weak C—H...O hydrogen bonds connect the cations into inversion dimers, forming R₂²(8) rings.