Premium
Stoichiometrically Controlled Revocable Self‐Assembled “Spiro” versus Quadruple‐Stranded “Double‐Decker” Type Coordination Cages
Author(s) -
Bandi Sreenivasulu,
Pal Amlan K.,
Hanan Garry S.,
Chand Dillip Kumar
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201403808
Subject(s) - stoichiometry , chemistry , iodide , bromide , pyridine , fluoride , chloride , ligand (biochemistry) , denticity , ion , crystallography , inorganic chemistry , medicinal chemistry , crystal structure , organic chemistry , receptor , biochemistry
Abstract 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” Pd 1 L 2 macrocycle, 1 , and the quadruple‐stranded Pd 3 L 4 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.