Pent-up potential: A novel type of metallocalixarenes for molecular recognition processes is synthesized. The self-assembling platinum(II) macrocycles are built from cisplatin analogues with tertiary amine ligands and the nucleobases uracil or thymine (see picture red O, blue N, orange Pt). The pentanuclear complex cations exhibit an asymmetric structure and bind anions by supramolecular interactions.
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Rauterkus et al. (2004) studied this question.
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