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A New Polymeric alkyl/alkoxide Magnesium-Sodium Inverse Crown Complex

A New Polymeric alkyl/alkoxide Magnesium-Sodium Inverse Crown Complex

Sharon E Baillie, Victoria L Blair, Eva Hevia, Alan R Kennedy

Acta Crystallogr C. 2011 Jul;67(Pt 7):m249-51.

PMID: 21727624

Abstract:

Poly[bis(μ(3)-trimethylsilylmethanolato)tetrakis(μ(2)-trimethylsilylmethyl)dimagnesiumdisodium], [Na(2)Mg(2)(C(4)H(11)OSi)(2)(C(4)H(11)Si)(4)](n), was obtained from the controlled exposure to oxygen of the unsolvated sodium magnesate [NaMg(CH(2)SiMe)(3)](n). Exhibiting a centrosymmetric (Z' = 1/2) dimeric core of a heterobimetallic eight-membered cationic ring, hosting two alkoxide ligands at its core, the title compound forms a two-dimensional coordination polymer in the crystallographic bc plane through Na···Me contacts. These contacts from Na to formally uncharged groups are only 0.06 longer than those between Na and the formally charged CH(2)R anions. The coordination polymers stack along the a direction to give a layer structure with alternating hydrophobic and hydrophilic regions.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP20910207	Tri-n-butyllithium magnesate		20910-20-7	Price

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