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Catenation and Aggregation of Multi‐Cavity Coordination Cages.
- Source :
- Angewandte Chemie International Edition; Oct2018, Vol. 57 Issue 41, p13652-13656, 5p
- Publication Year :
- 2018
-
Abstract
- Abstract: A series of metal‐mediated cages, having multiple cavities, was synthesized from Pd<superscript>II</superscript> cations and tris‐ or tetrakis‐monodentate bridging ligands and characterized by NMR spectroscopy, mass spectrometry, and X‐ray methods. The peanut‐shaped [Pd<subscript>3</subscript>L<superscript>1</superscript><subscript>4</subscript>] cage deriving from the tris‐monodentate ligand L<superscript>1</superscript> could be quantitatively converted into its interpenetrated [5Cl@Pd<subscript>6</subscript>L<superscript>1</superscript><subscript>8</subscript>] dimer featuring a linear {[Pd‐Cl‐]<subscript>5</subscript>Pd} stack as an unprecedented structural motif upon addition of chloride anions. Small‐angle neutron scattering (SANS) experiments showed that the cigar‐shaped assembly with a length of 3.7 nm aggregates into mono‐layered discs of 14 nm diameter via solvophobic interactions between the hexyl sidechains. The hepta‐cationic [5Cl@Pd<subscript>6</subscript>L<superscript>1</superscript><subscript>8</subscript>] cage was found to interact with polyanionic oligonucleotide double‐strands under dissolution of the aggregates in water, rendering the compound class interesting for applications based on non‐covalent DNA binding. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 57
- Issue :
- 41
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 132167987
- Full Text :
- https://doi.org/10.1002/anie.201806047