Heteroleptic rhodium complexes containing both he dipyrrin/cyclooctadiene ligands and application of [(eta(4)-C8H12)Rh(4-pyrdpm)] in the construction of homo-/hetero-bimetallic complexes

摘要

Heteroleptic rhodium(I) complexes with the general formulations [(eta(4)-C8H12)Rh(L)] [eta(4)-C8H12 = 1,5-cyclooctadiene; L = 5-(4-cyanophenyl)dipyrromethene, cydpm; 5-(4-nitrophenyl)dipyrromethene, ndpm; and 5-(4-benzyloxyphenyl)dipyrromethene, bdpm; 5-(4-pyridyl)dipyrromethene, 4-pyrdpm; 5-(3-pyridyl)dipyrromethene, 3-pyrdpm] have been synthesized. The complex [(eta(4)-C8H12)Rh(4-pyrdpm)] have been used as a synthon in the construction of homo-bimetallic complex [(eta(4)-C8H12)Rh(mu-4-pyrdpm)Rh(eta(5)-C5Me5)Cl-2] and hetero-bimetallic complexes [(eta(4)-C8H12)Rh(mu-4-pyrdpm)Ir(eta(5)-C5Me5)Cl-2], [(eta(4)-C8H12)Rh(mu-4-pyrdpm)Ru(eta(6)-C10H14)Cl-2] and [(eta(4)-C8H12)Rh(mu-4-pyrdpm)Ru(eta(6)-C6H6)Cl-2]. Resulting complexes have been characterized by elemental analyses and spectral studies. Molecular structures of the representative mononuclear complexes [(eta(4)-C8H12)Rh(ndpm)] and [(eta(4)-C8H12)Rh(4-pyrdpm)] have been authenticated crystallographically.