A polymeric solvent-free variant of a hydridomagnesium inverse crown.
A polymeric solvent-free variant of a hydridomagnesium inverse crown.
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氢化镁反冠的无聚合物溶剂变体。
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
C. T. O’Hara
中科院分区：
文献类型：
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作者：
David V. Graham;A. Kennedy;R. Mulvey;C. T. O’Hara
本文报道了一种无溶剂聚合的含β-环糊精的反冠分子的变体，即四-μ_2-二异丙基β-氨基-二-μ_2-β-二镁（Ⅱ）二钠（Ⅰ）[Mg_2Na_2 H_2（C_6 H_（14）N）_4]。不对称单元包含两个晶体学上独立的中心对称分子，每个分子以阳离子八元环的形式存在，具有交替的金属和N原子，其充当朝向两个氢化物阴离子的主体。金属酰胺环通过Na + C + Agostic相互作用连接，产生沿沿着晶体学B方向传播的一维聚合链。
A solvent-free agostically propagated polymeric variant of a previously reported hydride-containing inverse crown molecule has been prepared, namely tetra-μ2-diisopropylamido-di-μ2-hydrido-dimagnesium(II)disodium(I), [Mg2Na2H2(C6H14N)4]. The asymmetric unit contains two crystallographically independent centrosymmetric molecules, each existing as a cationic eight-membered ring, with alternating metal and N atoms, which acts as a host towards two hydride anions. The metal amide rings are linked via Na⋯C agostic interactions to produce one-dimensional polymeric chains propagating along the crystallographic b direction.