title: 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.
authors.affiliation: ISIS-Université Louis Pasteur, 4 rue Blaise Pascal, 67000 Strasbourg, France.
authors.forename: D P
authors.initials: DP
authors.lastname: Funeriu
authors.forename: K
authors.initials: K
authors.lastname: Rissanen
authors.forename: J M
authors.initials: JM
authors.lastname: Lehn