Abstract
We have synthesized a modified adenine ligand, with an azide appendage at N9 position, to extend the possibilities of coordination within chemically modified purine framework. Consequently, different coordination modes of this newly synthesized ligand afforded formation of dimeric, 1D- and 2D-polymeric structures, as a result of stoichiometry variation of silver ions. Monodentate coordination mode of azide containing adenine nucleobase led to a discrete dimer 1 with AgClO4, while 1D-polymer 2 was formed with AgNO3 through bidentate coordination mode of the ligand. Notably, a 2D-coordination polymer 3, with rectangular hexameric framework was obtained with AgNO3 as a result of a unique tridentate coordination mode of ligand, with additional assistance provided by weakly coordinating azide appendage.
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