Multinuclear oxo-bridged manganese complexes with a bulky substituted benzoate ligand: novel species obtained by using steric control.
A sterically hindered carboxylate ligand is used to synthesize the first transition metal complex containing both bis-mu-oxo and bis-mu-carboxylato groups, [Mn2(mu-O)2(mu-ArtolCO2)2(bpy)2]+. However, methyl substitution on the chelating bipyridine ligand results in the formation of a strikingly different and novel hexanuclear species, [Mn6(mu-O)4(mu3-O)4(mu-ArtolCO2)2(dmb)6]4+. Steric interactions between the bridging carboxylates and chelating pyridine-based ligands determine the nuclearity of the complexes formed.
Department of Chemistry, Eugene F. Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, MA 02467-3860, USA.
Sumitra
S
Mukhopadhyay
William H
WH
Armstrong
D015082:2,2'-Dipyridyl / Q000737:chemistry; D001565:Benzoates / Q000737:chemistry*; D001665:Binding Sites; D002614:Chelating Agents / Q000737:chemistry; D018360:Crystallography, X-Ray; D008024:Ligands; D008345:Manganese / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*
D001565:Benzoates; D002614:Chelating Agents; D008024:Ligands; D009942:Organometallic Compounds; D008345:Manganese; D015082:2,2'-Dipyridyl