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Interlocked molecular systems have attracted considerable attention for their potential application in the development of molecular machines. In particular, Pseudorotaxanes/rotaxanes with multiple functional groups are excellent systems to study their shuttling and switching properties. In the recent past, our group has developed “3+2” threading strategy between the wheel and axle templated by Cu(II)/Ni(II) that has resulted heterolectic complexes with pseudorotaxane architectures. In this direction, our recent studies show high yield formation of [2]pseudorotaxanes assembly with axle via multiple template interactions such as metal coordination, π–π stacking, and second-sphere hydrogen-bonding interactions and synthesis of [2]rotaxane via ‘click’ chemistry. Further a strategy for threading an axle having a hydrogen bond acceptor unit in the cavity of a C3v symmetric macrobicycle with two distinct cavities consisting of an amine and amide as potential anion recognition elements has also been developed which will be discussed in this talk. |