Anion Directed Self-Assembly of One-Dimensional and Two-Dimensional Coordination Polymers Containing Bridging Diphosphine Ligands
2016
The reactions of 1,2-bis(diphenylphosphanyl)ethane (dppe) with different silver(I) salts facilitated the formation of 1D and 2D coordination polymers, [Ag(dppe)(OAc)]n·nH2O (1) and [Ag2(dppe)1.5(NO3)2]n (2), respectively. The complexes were characterized by elemental analysis, ATR-IR spectroscopy, 1H NMR, 13C NMR, and 31P NMR spectroscopy, and single-crystal X-ray diffraction. Structural analysis revealed that complex 1 exhibits a 1D infinite wavy structure, in which each silver(I) ion is bridged by dppe ligands. Structure 2 has a 2D topologically promising architecture that displays a 6.6.6 graphitic net, which corresponds to hnd topology. The nitrate ions and dppe ligands are in a μ2 bridging mode and support the formation of this net. Moreover, significant π–π interactions between the phenyl rings in the apertures of (6,3) grid stabilized complex 2.
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