Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 20, Issue 41, Pages 13122-13126Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201403808
Keywords
anions; metal-to-ligand ratios; molecular double-decker; palladium; self-assembly
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Funding
- UGC, India
- Commonwealth Foundation
- DST, India [SB/S1/IC-05/2014]
- IIT Madras
- DFAIT, Canada
- NSERC of Canada
- University of Montreal
- Shastri Indo-Canadian Institute
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The simple combination of Pd-II with the tris-monodentate ligand bis(pyridin-3-ylmethyl) pyridine-3,5-dicarboxylate, L, at ratios of 1:2 and 3:4 demonstrated the stoichiometrically controlled exclusive formation of the spiro-type Pd1L2 macrocycle, 1, and the quadruple-stranded Pd3L4 cage, 2, respectively. The architecture of 2 is elaborated with two compartments that can accommodate two units of fluoride, chloride, or bromide ions, one in each of the enclosures. However, the entry of iodide is altogether restricted. Complexes 1 and 2 are interconvertible under suitable conditions.
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