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首页> 外文期刊>Acta Crystallographica, Section B. Structural science, crystal engineering and materials >Hydrocerussite-related minerals and materials: structural principles, chemical variations and infrared spectroscopy
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Hydrocerussite-related minerals and materials: structural principles, chemical variations and infrared spectroscopy

机译：型液体相关矿物和材料：结构原理，化学变化和红外光谱

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White lead or basic lead carbonate, 2PbCO_3·Pb(OH)_2, the synthetic analogue of hydrocerussite Pb_3(OH)_2(CO_3)_2, has been known since antiquity as the most frequently used white paint. A number of different minerals and synthetic materials compositionally and structurally related to hydrocerussite have been described within the last two decades. Herein, a review is given of general structural principles, chemical variations and IR spectra of the rapidly growing family of hydrocerussite-related minerals and synthetic materials. Only structures containing a hydroxo- and/or oxo-component, i.e. which are compositionally directly related with hydrocerussite and ‘white lead’, are reviewed in detail. An essential structural feature of all the considered phases is the presence of electroneutral [PbCO_3]~0 cerussite-type layers or sheets. Various interleaved sheets can be incorporated between the cerussite-type sheets. Different sheets are stacked into two-dimensional blocks separated by the stereochemically active 6s~2 lone electron pairs on Pb~(2+) cations. Minerals and synthetic materials described herein, together with a number of still hypothetical members, constitute a family of modular structures. Hydrocerussite, abellaite and grootfonteinite can be considered to constitute a merotype family of structures. The remaining hydrocerussite-related structures discussed are built on similar principles, but are more complex. Structural architectures of somersetite and slag phase from Lavrion, Attica, Greece, are unique for oxysalt mineral structures in general. Thus, the whole family of hydrocerussite-related phases can be denoted as a plesiotype family of modular structures. The crystal structures of hydrocerussite from Merehead quarry, Somerset, England, and of its synthetic analogue, both determined from single crystals, are reported here for the first time. The results of the infrared (IR) spectroscopy show that this method is useful for distinguishing several differ
机译：白铅或碱性铅碳酸盐，2pbco_3·pb（OH）_2，富型古代作为最常用的白色涂料的古代以来，升级液体Pb_3（OH）_2（CO_3）_2的合成类似物。在过去的二十年里，已经描述了许多不同的矿物质和合成材料与液体鼻肠和结构相关。在此，给出了迅速生长的嗜热肠杆菌族相关矿物和合成材料的一般结构原理，化学变化和IR光谱。只有含有羟基和/或氧代组分的结构，即与液体鼻肠和“白铅”的组成与液体和“白铅”的组成直接相关。所有考虑相的基本结构特征是电力φ〜0 cerussite型层或片材的存在。各种交错板可以结合在鞋体型片之间。将不同的纸张堆叠成由在PB〜（2+）阳离子上的立体化学活性的6S〜2唯一电子对分开的二维块。本文所述的矿物质和合成材料与许多仍然假设的成员一起构成了一种模块化结构。液体鼻甲，Abellaite和Grootfontieinite可以被认为是构成营销的营销系列。讨论的剩余的流体鼻腔相关结构是基于类似原则，但更复杂。来自希腊阿提卡的Lavrion的Somersetite和渣阶段的结构架构对氧化术矿物结构是独一无二的。因此，全系列的流体鼻腔相关阶段可以表示为模块化结构的plsiotype系列。从单晶体中确定，来自Meth Hearm采石，萨默塞特，英格兰和其合成模拟的液体结构，两者都是从单晶中确定的。红外（IR）光谱结果表明，该方法可用于区分几种不同

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