Half-Sandwich Rhodium and Iridium Complexes

Supramolecular Architectures Bearing Half-Sandwich Iridium- or Rhodium-Based Carboranes: Design, Synthesis, and Applications

“…The construction of supramolecular complexes via the direct reaction between carborane skeleton and metal ions is the most widely studied method in this field. 1,28 Hawthorne et al reported the first representative of a class of rigid macrocyclic electrophiles, " [12]mercuracarborand-4", complex 1, which appears as a cyclic compound in which four Hg ions are linked to C atoms of four carboranes (Figure 1). reported two examples for iodide-ion complexes with Lewis-acid hosts, namely, 4-I − (complex 3) and 4-I 2 2− (complex 4) (Figure 1), and the structural characterization of 4-I 2 2−…”

“…The construction of supramolecular complexes via the direct reaction between carborane skeleton and metal ions is the most widely studied method in this field. , Hawthorne et al reported the first representative of a class of rigid macrocyclic electrophiles, “[12]­mercuracarborand-4”, complex 1 , which appears as a cyclic compound in which four Hg ions are linked to C atoms of four carboranes (Figure ). − Cl – ions function as a template, which directs the assembly of the host macrocycle (complex 2 ) because either a cyclic trimer or a linear polymer should have more favorable geometries for coordinating Hg­(II) and carbon atoms in the carborane cage.…”