Structure and properties of a macrocyclic silver(II) supramolecular polymer |
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| Authors: | Ja Ran Moon Yong Tae Yoon Ju Chang Kim |
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| Institution: | a Department of Chemistry, Pukyong National University, Busan 608-737, Republic of Korea
b Department of Chemistry, University of Toronto, Toronto, ONT, Canada M5S 3H6 |
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| Abstract: | A new silver(II) complex, {Ag(L1)](NO3)2·4H2O}n (1) (L = 3,14-dimethyl-2,6,13,17-tetraazatricyclo14,4,01.18,07.12] docosane) has been synthesized and structurally characterized by a combination of analytical, spectroscopic, electrochemical and X-ray diffraction methods. The complex 1 exhibits a 1D supramolecular polymer with the silver(II) macrocycle L1 and nitrate ions, where 1D chain is formed by hydrogen bonds between the two sets of pre-organized N-H groups of the macrocycle and nitrate ions. The lattice water molecules mediate to interconnect each 1D chain to form the 2D supramolecular sheet. In 1 the unusual high oxidation state of Ag(II) is stabilized by the tetraazamacrocyclic ligand L1. The cyclic voltammogram for 1 indicates that the electrochemical oxidation of Ag(L1)]2+ is an irreversible process. |
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| Keywords: | Silver(II) complex Crystal structure Supramolecule Macrocycle |
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