A Rational Approach to Solid State Synthesis—The Zintl Concept

A Rational Approach to Solid State Synthesis—The Zintl Concept
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DOI:
10.1080/02603599008050859
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发表时间:
1990-05
影响因子:
5.4
通讯作者:
S. Kauzlarich
S. Kauzlarich
中科院分区:
化学3区
文献类型:
--
作者:
S. Kauzlarich

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合成了多种三元化合物AxMyXz,其中A为碱金属或碱土金属,M为半金属或主族元素,X为磷属元素化物。例如,化合物Ba 3AlSb 3、Ca 3AlSb 3、Ca 3AlSb 3和Ca 5Al 2Sb 6已经合成,并且它们的结构可以通过Zintl形式主义来理解,该形式主义可以简单地表述为所有原子的八隅体规则。这些结构通常可以用公式表示为A− + [(MX)−],因此这些实施例中的阴离子单元可以写成:(Al 2Sb 6)12-;(AlSb 3)6-链;(Al 2Sb 6)10-网络;和[(AlSb 9 - 4)+4Sb3- + Sb 7 - 3)。Zintl概念也已应用于三元过渡金属化合物,例如镧过渡金属磷属元素化物和三元过渡金属硫属元素化物。这些结构和它们的相关性质可以根据阳离子和复杂的多原子阴离子单元来理解。Zintl的概念,因为它适用于三元磷属化合物,将提出和其扩展到三元反式…
Abstract There are a wide variety of ternary compounds, AxMyXz, where A = alkali or alkaline earth metal, M = semimetal or main group element and X = pnictide, that have been synthesized. For example the compounds Ba3AlSb3, Ca3AlSb3, Ca3AlSb3 and Ca5Al2Sb6 have been synthesized and their structures can be understood via the Zintl formalism which can be simply stated as the octet rule for all atoms. The structures can be generally formulated as A− + [(MX)−] so that the anionic units in these examples may be written as: (Al2Sb6)12-; (AlSb3)6- chains; a (Al2Sb6)10- network; and [(AlSb9- 4) + 4Sb3- + Sb7- 3). The Zintl concept has also been applied to ternary transition metal compounds such as the lanthanum transition metal pnictides and ternary transition metal chalcogenides. These structures and their related properties can be understood in terms of cations and complex polyatomic anionic units. The Zintl concept, as it applies to ternary pnictide compounds, will be presented and its extension to ternary tra...