title: Threefold symmetric trimetallic macrocycles formed via the Weak-Link Approach.
abstract: The synthesis and characterization of a new threefold symmetric hemilabile phosphino-alkylthioether ligand are described. This ligand can be used in combination with Rh(I) and Ir(I) precursor complexes to prepare 40-membered macrocyles with threefold symmetry via the Weak-Link Approach. Synthesis and characterization of two such structures are reported along with a single crystal x-ray diffraction analysis of one of the key intermediates in the case of Rh(I). This is a demonstration of the viability of the Weak-Link Approach for preparing structures other than bimetallic macrocycles and suggests that it could be generalized for a wide range of higher symmetry structures through appropriate hemilabile ligand design.
authors.affiliation: Department of Chemistry and Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113,USA.
authors.forename: Maxim V
authors.initials: MV
authors.lastname: Ovchinnikov
authors.forename: Bradley J
authors.initials: BJ
authors.lastname: Holliday
authors.forename: Chad A
authors.initials: CA
authors.lastname: Mirkin
authors.forename: Lev N
authors.initials: LN
authors.lastname: Zakharov
authors.forename: Arnold L
authors.initials: AL
authors.lastname: Rheingold
mesh_terms: D018360:Crystallography, X-Ray / Q000379:methods; D008024:Ligands; D046911:Macromolecular Substances; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D008958:Models, Molecular; D011487:Protein Conformation; D013696:Temperature
chemical_list: D008024:Ligands; D046911:Macromolecular Substances