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Dominant/recessive behavior in the expression of molecular information: self-assembly of inorganic macrocyclic architectures containing coordinatively unsaturated ligands.


ABSTRACT: The polytopic ligand 1 contains three different metal ion binding subunits forming two substructures that code for the self-assembly of two different coordination structures (helicate and grid type) under metal ion complexation. Reaction with Cu(II) and Zn(II) ions generates the coordinatively unsaturated architectures 8 and 9 resulting from the formation of two double helicate arrangements. Their crystal structure has been determined by x-ray diffraction. These results show that the double helical motif is expressed at the expense of the grid type one, indicating the dominant/recessive behavior of the system. Together with earlier studies on the linear combination and crossover processing schemes, the dominant/recessive generation of 8 and 9 completes the demonstration of principle of the modes of multiple expression of molecular information in a multicode programmed chemical system.

SUBMITTER: Funeriu DP 

PROVIDER: S-EPMC58502 | biostudies-other | 2001 Sep

REPOSITORIES: biostudies-other

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Dominant/recessive behavior in the expression of molecular information: self-assembly of inorganic macrocyclic architectures containing coordinatively unsaturated ligands.

Funeriu D P DP   Rissanen K K   Lehn J M JM  

Proceedings of the National Academy of Sciences of the United States of America 20010904 19


The polytopic ligand 1 contains three different metal ion binding subunits forming two substructures that code for the self-assembly of two different coordination structures (helicate and grid type) under metal ion complexation. Reaction with Cu(II) and Zn(II) ions generates the coordinatively unsaturated architectures 8 and 9 resulting from the formation of two double helicate arrangements. Their crystal structure has been determined by x-ray diffraction. These results show that the double heli  ...[more]

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