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Catena-Poly[(?-anilido)(?-1,2-dimeth-oxy-ethane-?(3)-O,O':O)sodium].

ABSTRACT: In the title compound, [Na(C(6)H(5)NH)(C(4)H(10)O(2))], the Na(+) cation is coordinated by the N atoms of two anilide anions, two O atoms of a chelating 1,2-dimeth-oxy-ethane (dme) ligand and one O atom of an adjacent dme ligand. The coordination polyhedron around Na(+) corresponds to a distorted square pyramid with the N atoms of the anilide groups and the O atoms of the chelating dme unit at the base and a third O atom at the apical position. The anilide anions act as ?-bridging ligands and the 1,2-dimeth-oxy-ethane mol-ecules display a ?(2)-?(3)-O,O' coordination mode. As a result of this connectivity, a polymeric chain structure parallel to [100] is formed, consisting of Na(2)O(2) and Na(2)N(2) four-membered rings. It should be noted that the remaining H atom of the anilide NH group is not involved in hydrogen bonding.

SUBMITTER: Liebing P

PROVIDER: S-EPMC3470181 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature

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catena-Poly[(μ-anilido)(μ-1,2-dimeth-oxy-ethane-κ(3)-O,O':O)sodium].

Liebing Phil P Wagner Christoph C Merzweiler Kurt K

Acta crystallographica. Section E, Structure reports online 20120929 Pt 10

In the title compound, [Na(C(6)H(5)NH)(C(4)H(10)O(2))], the Na(+) cation is coordinated by the N atoms of two anilide anions, two O atoms of a chelating 1,2-dimeth-oxy-ethane (dme) ligand and one O atom of an adjacent dme ligand. The coordination polyhedron around Na(+) corresponds to a distorted square pyramid with the N atoms of the anilide groups and the O atoms of the chelating dme unit at the base and a third O atom at the apical position. The anilide anions act as μ-bridging ligands and th ...[more]

PMID: 23125625

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Project description:Crystals of the title salt, [Na(C6H14O3)2]2(C26H20), were grown from a tetra-hydro-furan/diglyme/Et2O solvent mixture [diglyme is 1-meth-oxy-2-(2-meth-oxy-eth-oxy)ethane]. The cations and dianion are separated in the crystal structure, unlike in the other three structurally characterized dialkali metal tetra-phenyl-ethyl-ene salts. The asymmetric unit contains one [Na(diglyme)2](+) cation and one half of the [Ph2CCPh2](2-) dianion. The latter lies on a twofold rotation axis. C-C bond-length redistribution displays that excessive electron density of the dianion is predominantly located at the C atoms of a former double bond and at all eight ortho positions. The studied crystal was a twin, with the ratio of two major components being 0.2143?(9):0.7857?(9). The twin operation is a twofold rotation around the a axis.

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