Abstract
A series of M4L6 tetrahedral cages, with a metal ion at vertex and a bis-bidentate bridging ligand spanning each edge, have been prepared and structurally characterised using three new ligands L1–L3. L1 contains two chelating pyrazolyl-pyridine termini connected to a 2,6-napthalene-diyl spacer by methylene groups: L2 and L3 contain chelating pyrazolyl-pyrazine termini connected to 1,8-naphthalene-diyl or 3,3-biphenyl centre units by methylene groups. The cages with L2 and L3 contain anions encapsulated in the central cavity. Although all three types of cage have the same basic tetrahedral structure, the cages display a range of molecular symmetries (S 4, T and C 3 for L1–L3, respectively) according to the combination of fac and mer tris-chelate metal sites in the complexes arising from the flexibility of the ligands.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
