Formation of a “meso‐Helicate” by Self‐Assembly of Three Bis(catecholate) Ligands and Two Titanium(IV) Ions

1995/10/16 by Markus Albrecht, Sirpa Kotila
Biochemistry, Genetics and Molecular Biology · Chemistry · Engineering · #DNA and Nucleic Acid Chemistry #Supramolecular Chemistry and Complexes #Surface Chemistry and Catalysis

paper · doi:10.1002/anie.199521341

openalex publication_date 1995/10/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29

Abstract

Not a chiral helicate but an achiral meso-helicate assembles from six catecholate units—bound pairwise by (CH2)3 chains—and two Ti4+ as well as four Na+ or K+ ions. NMR spectroscopic investigations at several temperatures allow the direct observation of the inversion of configuration of the chiral metal centers of the potassium salt.

Related

• Helically Chiral Mixed‐Valence Systems Comprising N ‐Heterotriangulenes: Stabilization of the Cationic Species by π‐Expansion
• Insights into Potassium 18‐Crown‐6 Complexes with Pertechnetate and Perrhenate: A Structural and Computational Study of their Coordination Chemistry
• Cooperative Sulfate Binding Drives Hierarchical Assembly of Supramolecular Trimers
• First Encapsulation of Organometallic Single‐Molecule Magnet into Single‐Walled Carbon Nanotubes
• Strategic approaches to observing 39K NMR signals from potassium–graphite intercalation compounds