Poly[[diaqua(μ2-4,4′-dipyridyl sulfide-κ2 N:N′)(4,4′-dipyridyl sulfide-κN)(2-hydroxy-5-sulfonatobenzoato-κO 1)nickel(II)] dihydrate]
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چکیده
The asymmetric unit of the title helical coordination polymer, {[Ni(C(7)H(4)O(6)S)(C(10)H(8)N(2)S)(2)(H(2)O)(2)]·2H(2)O}(n), is comprised of an Ni(II) ion, one 5-sulfosalicylic acid dianion (HSSA), two 4,4'-dipyridylsulfide (4,4'-dps) ligands, and two coordinated and two uncoordinated water mol-ecules. The Ni(II) ion is coordinated by two water mol-ecules, one carboxyl-ate O atom of the HSSA dianion and three N atoms from three 4,4'-dps ligands in a distorted octa-hedral environment. Half of the 4,4'-dps ligands are μ(2)-bridging ligands which link adjacent Ni(II) centers, forming a one-dimensional helical structure along the b axis. This helical structure is further stabilized by O-H⋯O intra- and inter-molecular hydrogen bonds.
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