Solid-state structures of the covalent hydrides germane and stannane

Maley IJ; Brown DH; Ibberson RM; Pulham CR

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Solid-state structures of the covalent hydrides germane and stannane

机译：共价氢化物锗烷和锡烷的固态结构

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The low-temperature crystal structures of perdeuterogermane ( m. p. 108 K) and perdeuterostannane ( m. p. 123 K) are reported. The structures have been characterized from low-temperature ( 5 K) high-resolution neutron powder diffraction experiments following sample preparation using in situ gas-condensation techniques. GeD4 crystallizes in an orthorhombic structure, space group P2(1)2(1)2(1), with one molecule in the asymmetric unit, and with an average Ge-D bond length of 1.517 (3) angstrom. The SnD4 structure is monoclinic ( space group C2/c), and the molecule is located on a twofold rotation axis with an average Sn-D bond length of 1.706 (3) angstrom. The crystal structures are discussed in relation to those of other tetrahedral molecules of group IV hydrides at low temperature, and evidence is presented that the crystal structure of silane, below 38 K, is isostructural with germane.

机译：报道了Perdeuterogermane（m。p。108 K）和perdeuterostannane（m。p。123 K）的低温晶体结构。使用原位气体冷凝技术制备样品后，通过低温（5 K）高分辨率中子粉末衍射实验对结构进行了表征。 GeD4结晶为正交结构，空间群P2（1）2（1）2（1），其中一个分子位于不对称单元中，平均Ge-D键长为1.517（3）埃。 SnD4结构为单斜晶（空间群C2 / c），分子位于两倍旋转轴上，平均Sn-D键长为1.706（3）埃。讨论了与低温下其他IV型氢化物的四面体分子的晶体结构有关的证据，并提供了证据表明，低于38 K的硅烷的晶体结构与锗烷是同构的。

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《Acta Crystallographica, Section B. Structural Science》 |2008年第3期|共6页
作者
Maley IJ; Brown DH; Ibberson RM; Pulham CR;
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正文语种 eng
中图分类晶体学;
关键词
SPIN-LATTICE RELAXATION; CRYSTAL-STRUCTURES; LOW-TEMPERATURE; SIH4; GEH4; SPECTRA; PHASES; METALLIZATION; PRESSURE; GED4;

机译：自旋晶格弛豫;晶体结构;低温;SIH4;GEH4;光谱;相;相变;压力;GED4;

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机译：共价氢化物锗烷和锡烷的固态结构
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7. Solid-state structures of the covalent hydrides germane and stannane [O] . Maley IJ, Brown DH, Ibberson RM, 2008

机译：共价氢化物锗烷和锡烷的固态结构
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Solid-state structures of the covalent hydrides germane and stannane

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