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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >The New Mixed Cluster Trielide K 33 Ga 11– x 11– xx In x xx ( xx = 1.16–1.36): Synthesis, Crystal Chemistry, and Chemical Bonding
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The New Mixed Cluster Trielide K 33 Ga 11– x 11– xx In x xx ( xx = 1.16–1.36): Synthesis, Crystal Chemistry, and Chemical Bonding

机译:新的混合簇Trielide k 3 3 ga 11- x 11- x x x x( x x = 1.16-1.36):合成,晶体化学和化学键合

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摘要

> The new cluster compound K 3 Ga 11– x In x , which exhibits a very small In/Ga phase width of x = 1.16 to 1.36 only, was obtained in the course of a systematic synthetic, crystallographic and bond theoretical investigation of mixed potassium trielides of the ternary system K‐In‐Ga. The compound, which was synthesized from nearly stoichiometric amounts of the elements at a maximum temperature of 500 °C, crystallizes in a new orthorhombic crystal structure type [space group Cmmm, a = 1577.9(5), b = 3355.1(8), c = 655.2(2) pm, Z = 10, R 1 = 0.0471]. In the complex polyanion, the triels form two crystallographically different [Ga 12 ] icosahedra, which are present in a 1:2 ratio, and a previously unknown [ M 13 ] “double‐cluster” consisting of two vertex‐sharing [ M 7 ] pentagonal bipyramids. All clusters are connected among each other and via a four‐bonded pure In and Ga atom [In(1), Ga(1)]. The polyanion of the compound with the overall formula K 15 M 55 can thus be split up according to [Ga(1 X ) 12 ][Ga(2 X ) 12 ] 2 [ M (3 X ) 13 ]In(1) 4 Ga(1) 2 . Herein, the all‐ exo bonded closo icosahedra ca
机译: >新的群集化合物k 3 ga 11- x x中在系统合成,结晶和债券理论调查的过程中,获得了仅在系统合成,结晶和债券的过程中呈现非常小的/ GA相宽度的非常小的/ GA相宽度。三元体系K-IN-GA的混合钾三叶片。从500℃的最高温度下从几乎化学计量的元素合成的化合物,在新的正交晶体结构型[空间组 cmmm,a / i> = 1577.9(5)中结晶,< i> B = 3355.1(8), C = 655.2(2)PM, Z = 10, R 1 = 0.0471]。在复杂的聚膜中,三元形成两个晶形上不同的[Ga 12 ] Icosahedra,其存在于1:2的比例中,并且先前未知的[ m 13 ]“双簇”由两个顶点共享组成[ m 7 ]五角形双嘧酰胺。所有簇相互连接,并通过四键合纯IN和GA Atom [In(1),Ga(1)]。因此,具有总体式k 15 m 55 的化合物的聚沉聚物可以根据[ga(1 x ] / i>) 12 ] [ga(2 x 12 ] 2 [ m (3 x 13 ](1) 4 ga(1) 2 。在此,全部 - exo 粘合赛&cino icosahedra ca

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