Abstract
The coordination compound [Ag2L2(H2O)2] · 2H2O (I), L = C12H10NO2S has been synthesized by the reaction of AgNO3 with 4-methyl-2-quinolylthioacetic acid (HL) preliminarily neutralized with an equimolar amount of NBu4OH. Its crystal structure has been determined, and luminescence properties have been studied. Crystals of I are monoclinic, space group C2/c, a = 31.239(6) Å, b = 12.056(2) Å, c = 16.846(3) Å, β = 122.17(3)°, V = 5370.4(2) Å3, ρcalc = 1.861 g/cm3, Z = 16. The structure is formed by two crystallographically nonequivalent silver atoms Ag(1) and Ag(2) and two tridentate bridging ligands L coordinated through the S, N, and O atoms. These atoms, together with water molecules, form the coordination environments of the metal atoms with CN = 5 and 4, respectively. The Ag+ ions and the tridentate ligands form infinite [Ag4L4] n bands extended in the [001] direction. The presence of outer-sphere water molecules involved in O–H···O hydrogen bonding is responsible for the formation of a supramolecular framework structure. The photoluminescence spectrum of compound I shows two bands at ~450 and ~485 nm corresponding to the blue spectral range.
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Original Russian Text © Yu.V. Kokunov, Yu.E. Gorbunova, V.V. Kovalev, L.D. Popov, S.A. Borodkin, G.A. Razgonyaeva, S.A. Kozyukhin, 2016, published in Zhurnal Neorganicheskoi Khimii, 2016, Vol. 61, No. 11, pp. 1450–1455.
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Kokunov, Y.V., Gorbunova, Y.E., Kovalev, V.V. et al. Four- and five-coordinate metal atoms in a supramolecular polymeric assembly of silver(I) with (4-methyl-2-quinolylthio)acetate. Russ. J. Inorg. Chem. 61, 1397–1402 (2016). https://doi.org/10.1134/S0036023616110097
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DOI: https://doi.org/10.1134/S0036023616110097