Synthesis and structural characterization of mixed-ligand silver(I) complexes containing diphosphazanes and bidentate N-donor ligands |
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| Authors: | Heera Krishna Munirathinam Nethaji |
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| Institution: | Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India |
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| Abstract: | The reactions of a self-assembled silver(I) coordination polymer, Ag2{μ-PriN(PPh2)2}(μ-NO3)2]n (1) with various bidentate N-donor ligands such as DABCO, 2,2′-bipyridyl and 1,10-phenanthroline yield 1-D helices or π-π stacked polymers, depending on the chelate vector of the N-donor ligand. The molecular structures of the resultant complexes, Ag2{μ-PriN(PPh2)2}(DABCO)(NO3)2]n (2), Ag2{μ-PriN(PPh2)2}(2,2′-bipy)2(NO3)2] (3) and Ag2{μ-PriN(PPh2)2}(1,10-phen)2](NO3)2 (4) have been confirmed by single-crystal X-ray diffraction. Complex 2 exists as an infinite helical polymer because of the exo-bidentate nature of DABCO. Complex 3 assumes a 2D grid motif as a result of intermolecular π-π stacking among adjacent bipyridine moieties. The phenanthroline complex 4 exhibits strong inter- and intramolecular π-π stacking interactions. |
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| Keywords: | Phosphorus(III) ligands N-donor ligands Silver(I) complexes NMR spectroscopy X-ray crystallography |
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