Acta Cryst. (2011). E67, m790-m791  [ doi:10.1107/S1600536811018290 ]

A one-dimensional coordination polymer constructed from isatine-3-oximate and sodium

B. Barreto Martins, L. Bresolin, V. Santana Carratu, M. Boneberger Behm and A. Bof de Oliveira

Abstract: The reaction of hydroxylamine hydrochloride with isatin in ethanol, catalysed with HCl and neutralized with Na₂CO₃, yielded the one-dimensional coordination polymer, catena-poly[[[aquasodium]-di--aqua-[aquasodium]-bis(-2-oxoindoline-2,3-dione 3-oximato)] tetrakis(oxoindoline-2,3-dione 3-oxime)], {[Na(C₈H₅N₂O₂)(H₂O)₂]·2C₈H₆N₂O₂}_n. The Na^I atom has a six-coordinate distorted-octahedral environment. Isatine-3-oximate O atoms and water molecules bridge adjacent Na atoms, forming a one-dimensional polymeric structure parallel to [100]. Each isatine-3-oxime dimerizes through N-HO interactions and in addition each oxime is linked to a coordination polymer. Thus, coordination polymers are linked by O-HO and O-HN interactions from isatine-3-oxime dimers, building a two-dimensional network parallel to [110].

Online 25 May 2011

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