Molecular polyselenide anions sandwiched between cationic extended metal hydroxides: Synthesis and structures of [Sr_2Sn(OH)_6(H _2O)_6]Se_4 and [Sr_2Sn(OH) _6(H_2O)5]Se_3·H_2O

Wang X.; Wang H.H.; Makarenko B.; Jacobson A.J.

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Molecular polyselenide anions sandwiched between cationic extended metal hydroxides: Synthesis and structures of [Sr_2Sn(OH)_6(H _2O)_6]Se_4 and [Sr_2Sn(OH) _6(H_2O)5]Se_3·H_2O

机译：夹在阳离子扩展金属氢氧化物之间的分子聚硒阴离子：[Sr_2Sn（OH）_6（H _2O）_6] Se_4和[Sr_2Sn（OH）_6（H_2O）5] Se_3·H_2O的合成与结构

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Two new strontium tin hydroxy polyselenides [Sr_2Sn(OH) _6(H_2O)_6]Se_4 (1) and [Sr _2Sn(OH)_6(H_2O)_5]Se _3·H_2O (2) were synthesized from hydrothermal reactions. Their structures were determined from single-crystal X-ray data measured at 218 K. Compound 1 crystallized in the space group P1 with a = 5.935(1), b = 8.440(1), c = 9.464(2) ?, α = 97.292(2)°, β = 104.957(2)°, γ = 110.328(2)°. Compound 2 crystallized also in the space group P1 with a = 10.658(2), b = 11.082(2), c = 15.797(2) ?, α = 73.303(4)°, β = 74.942(4)°, γ = 64.627(3)°. Both compounds have structures containing infinite cationic layers of hydrated metal hydroxides built from Sn(OH)_6 octahedra and Sr(OH, H _2O)_n polyhedra. Molecular Se_4 ~(2-) and Se_3 ~(2-) anions are located in the interlayer spaces of 1 and 2, respectively. The Se_4 ~(2-) anions of 1 adopt a flat zigzag conformation with a torsion angle of 0°.

机译：通过水热反应合成了两种新的锶锡羟基聚硒化物[Sr_2Sn（OH）_6（H_2O）_6] Se_4（1）和[Sr _2Sn（OH）_6（H_2O）_5] Se _3·H_2O（2）。由在218 K下测量的单晶X射线数据确定其结构。化合物1在空间群P1中结晶，其a = 5.935（1），b = 8.440（1），c = 9.464（2）α，α= 97.292（2）°，β= 104.957（2）°，γ= 110.328（2）°。化合物2也在空间群P1中结晶，a = 10.658（2），b = 11.082（2），c = 15.797（2）α，α= 73.303（4）°，β= 74.942（4）°，γ= 64.627（3）°。两种化合物的结构均包含由Sn（OH）_6八面体和Sr（OH，H _2O）_n多面体构建的无限量水合金属氢氧化物阳离子层。分子Se_4〜（2-）和Se_3〜（2-）阴离子分别位于1和2的层间空间中。 1的Se_4〜（2-）阴离子采用曲折平的构象，扭转角为0°。

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《Zeitschrift fur Anorganische und Allgemeine Chemie》 |2012年第15期|共4页
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Wang X.; Wang H.H.; Makarenko B.; Jacobson A.J.;
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正文语种 eng
中图分类化学;
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Hydrothermal synthesis; Layered compounds; Polychalcogenides; Polyselenides;

机译：水热合成;层状化合物;多硫属元素化物;多硒化物;

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Molecular polyselenide anions sandwiched between cationic extended metal hydroxides: Synthesis and structures of [Sr_2Sn(OH)_6(H _2O)_6]Se_4 and [Sr_2Sn(OH) _6(H_2O)5]Se_3·H_2O

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