Synthesis and X-ray crystal structures of two 14-vertex di-iron tetracarbon metallocarbaboranes
Abstract
The reaction of Me4C4B8H8 with NaC10H8, NaC5H5, and FeCl2 produces at least four isomers of [(η5-C5H5)2Fe2Me4 C4B8H8], two of which have been structurally characterized from X-ray crystallographic studies and form 14-vertex polyhedra; neither compound has the closo-structure predicted from electron-counting rules, containing instead a 5-membered and a 4-membered open face respectively.