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Heterometallic network complexes of the ambidentate, extended-reach linear ligand 1-(4'-pyridyl)pyridin-4-one



Heterometallic network complexes of the ambidentate, extended-reach linear ligand 1-(4'-pyridyl)pyridin-4-one



Inorganic Chemistry 40(24): 6180-6185



An investigation into the ability of the ambidentate, "extended-reach" ligand 1-(4'-pyridyl)pyridin-4-one (pypyd) to form polymeric network complexes has resulted in the X-ray characterization of the compounds [Cu(pypyd)(2)(H2O)(2)](ClO(4))(2).pypyd 1, [Co(2)Dy(2)(pypyd)(8)(H2O)(2)(NCS)(4)(NO(3))(4)][Co(NCS)(4)] 2, and [NiYb(pypyd)(4)(NCS)(2)(NO(3))(2)](NO(3)) 3. The homometallic copper complex, 1, forms a (4,4) sheet polymer with additional intrasheet cross-linking via hydrogen bonding of noncoordinated pypyd molecules to the aqua ligands on the Cu centers. The heterometallic Co/Dy complex, 2, also produces a contiguous (4,4) sheet but without the hydrogen bonded pypyd cross-link. The heterometallic Ni/Yb compound, 3, forms a more complex array comprised of mutually interpenetrating networks each of three-dimensional (6,4) topology. The crystal structure of an acetic acid adduct of pypyd, 4, is also reported.

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Accession: 046245323

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PMID: 11703117

DOI: 10.1021/ic010590h


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