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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Structure determination of a twinned Rb(H2NC10H6SO3) center dot H2O crystal and comparison to related alkali metal aminonaphthalenesulfonates
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Structure determination of a twinned Rb(H2NC10H6SO3) center dot H2O crystal and comparison to related alkali metal aminonaphthalenesulfonates

机译:孪晶Rb(H2NC10H6SO3)中心点H2O晶体的结构确定及与相关碱金属氨基萘磺酸盐的比较

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摘要

Rb(H2NC10H6SO3) . H2O crystallizes in space group P2(1) with two formula units in the asymmetric unit, the crystal being twinned by a 180 degrees rotation about [1 0 0]. The structure was determined from X-ray diffraction data, and refined, based on two twin components, to yield a final R value of 0.0557 for 2754 reflections. The structure consists of alternating layers of aminonaphthalenesulfonate and rubidium ions. There are two distinct rubidium environments, the metal ions linked by the sulfonate groups and bridging water molecules into an infinite sheet. The sulfonate groups are bidentate, monodentate and bridging, all oxygen atoms being bound to at least one metal. The amino groups do not participate in coordination to the metal. Aromatic moieties from neighboring hydrophile metallo-layers interleave to form the hydrophobic layers. There is some similarity to the analogous sodium and potassium structures, however the rubidium compound is distinguished by an infinite cationic layer, rather than columns observed for the other two structures. [References: 5]
机译:Rb(H 2 NC 10 H 6 SO 3)。 H2O在空间组P2(1)中以两个不对称单位的式子结晶,该晶体通过绕[1 0 0]旋转180度而孪晶。根据X射线衍射数据确定结构,并基于两个孪生分量进行精制,以得到2754次反射的最终R值为0.0557。该结构由氨基萘磺酸盐和rub离子的交替层组成。 two环境有两种,一种是通过磺酸盐基团连接的金属离子,另一种是将水分子桥接成无限大的薄片。磺酸根基团是二齿的,单齿的和桥连的,所有的氧原子都与至少一种金属键合。氨基不参与与金属的配位。来自相邻亲水金属层的芳族部分交错形成疏水层。与类似的钠和钾结构有些相似,但是the化合物的特征是无限的阳离子层,而不是其他两种结构的柱。 [参考:5]

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