Studies on the coordination behavior of methanesulfonate in zinc(II) based two and three dimensional supramolecular assemblies

Ravi Shankar, Rohit Singh, Gabriele Kociok-Köhn, Kieran C. Molloy

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Abstract

The zinc complexes, [Zn(OS(O)Me) (H2O) ]n 1 and [Zn(OS(O)Me) (HO) ]n 2 are obtained as hydrolysis products of the homoleptic zincate salt, [Et4N] [Zn(OS( O)Me)]. The reaction of 2 with 4,40-bipyridine (4,40-bipy) in dry methanol yields [{Zn(4,40-bipy) (HO)}(OS( O)Me)]n, 3. The structure of 1 adopts one-dimensional polymeric motif by virtue of bridging bidentate mode of methanesulfonate groups while 2 is a molecular entity with monodentate sulfonate groups directly bonded to the zinc atom. The coordination framework of 3 is composed of infinite arrays of cationic [ZnON ] octahedra with methanesulfonate anions being located in the secondary coordination sphere. The sulfonate group in 1-3 acts as a hub for O-H...O type hydrogen bonds and assists the formation of two-/three-dimensional supramolecular assemblies.
Original languageEnglish
Pages (from-to)157-163
Number of pages7
JournalProceedings of the National Academy of Sciences India Section A - Physical Sciences
Volume84
Issue number2
DOIs
Publication statusPublished - Jun 2014

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assemblies
zinc
sulfonates
hubs
hydrolysis
methyl alcohol
hydrogen bonds
anions
salts
products
atoms

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Studies on the coordination behavior of methanesulfonate in zinc(II) based two and three dimensional supramolecular assemblies. / Shankar, Ravi; Singh, Rohit; Kociok-Köhn, Gabriele; Molloy, Kieran C.

In: Proceedings of the National Academy of Sciences India Section A - Physical Sciences, Vol. 84, No. 2, 06.2014, p. 157-163.

Research output: Contribution to journalArticle

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N2 - The zinc complexes, [Zn(OS(O)Me) (H2O) ]n 1 and [Zn(OS(O)Me) (HO) ]n 2 are obtained as hydrolysis products of the homoleptic zincate salt, [Et4N] [Zn(OS( O)Me)]. The reaction of 2 with 4,40-bipyridine (4,40-bipy) in dry methanol yields [{Zn(4,40-bipy) (HO)}(OS( O)Me)]n, 3. The structure of 1 adopts one-dimensional polymeric motif by virtue of bridging bidentate mode of methanesulfonate groups while 2 is a molecular entity with monodentate sulfonate groups directly bonded to the zinc atom. The coordination framework of 3 is composed of infinite arrays of cationic [ZnON ] octahedra with methanesulfonate anions being located in the secondary coordination sphere. The sulfonate group in 1-3 acts as a hub for O-H...O type hydrogen bonds and assists the formation of two-/three-dimensional supramolecular assemblies.

AB - The zinc complexes, [Zn(OS(O)Me) (H2O) ]n 1 and [Zn(OS(O)Me) (HO) ]n 2 are obtained as hydrolysis products of the homoleptic zincate salt, [Et4N] [Zn(OS( O)Me)]. The reaction of 2 with 4,40-bipyridine (4,40-bipy) in dry methanol yields [{Zn(4,40-bipy) (HO)}(OS( O)Me)]n, 3. The structure of 1 adopts one-dimensional polymeric motif by virtue of bridging bidentate mode of methanesulfonate groups while 2 is a molecular entity with monodentate sulfonate groups directly bonded to the zinc atom. The coordination framework of 3 is composed of infinite arrays of cationic [ZnON ] octahedra with methanesulfonate anions being located in the secondary coordination sphere. The sulfonate group in 1-3 acts as a hub for O-H...O type hydrogen bonds and assists the formation of two-/three-dimensional supramolecular assemblies.

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