...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >About selenidostannates. I. Synthesis, structure, and properties of [Sn2Se6](4-), [Sn4Se10](4-) and [Sn3Se7](2-) [German]
【24h】

About selenidostannates. I. Synthesis, structure, and properties of [Sn2Se6](4-), [Sn4Se10](4-) and [Sn3Se7](2-) [German]

机译：关于硒代锡酸酯。 I. [Sn2Se6]（4-），[Sn4Se10]（4-）和[Sn3Se7]（2-）的合成，结构和性质[德语]

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The selenidostannates [(C4H9)(2)NH2](4)Sn2Se6 . H2O (I), [(C4H9)(2)NH2](4)Sn4Se10 . 2H(2)O (II) und [(C3H7)(3)NH](2)Sn3Se7 (III) were prepared by hydrothermal syntheses from the elements and the amines. I crystallizes in the monoclinic spacegroup P2(1) (a = 1262.9(3) pm, b = 1851.3(4) pm, c = 2305.2(4) pm, beta = 104.13(3)degrees and Z = 4). The [Sn2Se6](4-) anion consists of two edge-sharing tetrahedra. II crystallizes in the orthorhombic spacegroup Pna2(1) (a = 2080.3(4) pm, b = 1308.2(3) pm, c = 2263.5(5) pm and Z = 4). The anion is formed from four SnSe4 tetrahedra which are joined by common corners to the adamantane cage [Sn4Se10](4-). III crystallizes in the orthorhombic spacegroup Pbcn (a = 1371.1(3) pm, b = 2285.4(5) pm, c = 2194.7(4) pm and Z = 8). The anion is a chain, built from edge-sharing [Sn3Se5Se4/2](2-) units, in which two corner sharing tetrahedra are connected to a trigonal bipyramid by an edge of one and a corner of the other tetrahedron. The results of the TG/DSC measurements and of temperature dependent X-ray diffractograms reveal that I and II decompose at first by release of minor quantities of triethylammonium to compounds with layer structure and larger cell dimensions. At still higher temperature the rest of triethylammonium and H2Se is evolved, leaving SnSe2 and Se in the bulk. The former decomposes partially at the highest temperature to SnSe. In the measurements of III the complex intermediate compound was not observed. III decomposes directly to SnSe2. [References: 25]
机译：亚硒酸锡[（C4H9）（2）NH2]（4）Sn2Se6。 H 2 O（I），[（C4H9）（2）NH2]（4）Sn4Se10。通过水热合成由元素和胺制备2H（2）O（II）和[（C3H7）（3）NH]（2）Sn3Se7（III）。我在单斜空间群P2（1）/ n（a = 1262.9（3）pm，b = 1851.3（4）pm，c = 2305.2（4）pm，beta = 104.13（3）度，Z = 4）中结晶。 [Sn2Se6]（4-）阴离子由两个边缘共享的四面体组成。 II在正交空间群Pna2（1）中结晶（a = 2080.3（4）pm，b = 1308.2（3）pm，c = 2263.5（5）pm，Z = 4）。阴离子由四个SnSe4四面体形成，它们通过共同的角与金刚烷笼[Sn4Se10]（4-）连接。 III在正交空间群Pbcn中结晶（a = 1371.1（3）pm，b = 2285.4（5）pm，c = 2194.7（4）pm和Z = 8）。阴离子是一条由边缘共享[Sn3Se5Se4 / 2]（2-）单元构建的链，其中两个共享角的四面体通过一个四面体的一个边缘和另一个四面体的一个角与一个三角双锥体相连。 TG / DSC测量和与温度相关的X射线衍射图的结果表明，I和II首先通过释放少量三乙铵到具有层结构和较大细胞尺寸的化合物中而分解。在更高的温度下，剩下的三乙基铵和H2Se析出，剩下大量的SnSe2和Se。前者在最高温度下部分分解为SnSe。在III的测量中，未观察到复杂的中间体化合物。 III直接分解为SnSe2。 [参考：25]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号