Coordination Networks Based on Multitopic Ligands and Silver(I) Salts: A Study of Network Connectivity and Topology as a Function of Counterion

Chem. Mater., 8 (8), 2030 -2040, 1996. cm950594i S0897-4756(95)00594-1

Coordination Networks Based on Multitopic Ligands and Silver(I) Salts: A Study of Network Connectivity and Topology as a Function of Counterion

D. Venkataraman, Stephen Lee,* Jeffrey S. Moore,* Peng Zhang, Keith A. Hirsch, Geoffrey B. Gardner, Aaron C. Covey, and Christine L. Prentice

Departments of Chemistry and Materials Science & Engineering and the Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, Illinois 61801, and Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055

Received December 11, 1995

Revised Manuscript Received February 26, 1996

Abstract:

We show that much like hydrogen bonding, Ag-N coordination bonds can be reliably used for the construction of supramolecular networks. From a solid-state structural study of silver(I) complexes of multitopic ligands, we describe coordination networks formed in the presence of the weakly coordinating triflate (CF₃SO₃^-) counterion and the noncoordinating hexafluorophosphate (PF₆^-) species. For complexes prepared with silver(I) triflate, counterion coordination is characteristic. Also, for the triflate complexes presented, ditopic ligands form one-dimensional, chainlike structures and tritopic ligands form 3-connected nets. A tetratopic ligand also forms a 3-connected net due to the triflate-capped silver(I) coordination. In contrast, more varied network topology is seen in complexes of ditopic ligands prepared with silver(I) hexafluorophosphate.

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