Threefold symmetric trimetallic macrocycles formed via the Weak-Link Approach.
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.
Ovchinnikov
Maxim V
MV
Department of Chemistry and Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113,USA.
Holliday
Bradley J
BJ
Mirkin
Chad A
CA
Zakharov
Lev N
LN
Rheingold
Arnold L
AL
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
D008024:Ligands; D046911:Macromolecular Substances