(N2)6Ne7: A High Pressure van der Waals Insertion Compound

被引：20

作者：

Plisson, Thomas ^{[1
]}

Weck, Gunnar ^{[1
]}

Loubeyre, Paul ^{[1
]}

机构：

[1] CEA, DAM, DIF, F-91297 Arpajon, France

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 02期

关键词：

SOLID NITROGEN; MIXTURES; SCATTERING; STABILITY; HYDROGEN; PHASE; KBAR; GPA;

D O I：

10.1103/PhysRevLett.113.025702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The binary phase diagram of N-2-Ne mixtures has been measured at 296 K by visual observation and Raman spectroscopy. The topology of the phase diagram points to the existence of the stoichiometric compound (N-2)(6)Ne-7. Its structure has been solved by single-crystal synchrotron x-ray diffraction. The N-2 molecules form a guest lattice that hosts the Ne atoms. This insertion compound can be viewed as a clathrate with the centers of the N-2 molecules forming distorted dodecahedron cages, each enclosing 14 Ne atoms. Remarkably, the (N-2)(6)Ne-7 compound is somehow the first clathrate organized by the quadrupolar interaction.

引用

页数：5

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