English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  More Than 50 Years after Its Discovery in SiO2 Octahedral Coordination Has Also Been Established in SiS2 at High Pressure

Evers, J., Moeckl, L., Oehlinger, G., Koeppe, R., Schnoeckel, H., Barkalov, O., et al. (2017). More Than 50 Years after Its Discovery in SiO2 Octahedral Coordination Has Also Been Established in SiS2 at High Pressure. Inorganic Chemistry, 56(1), 372-377. doi:10.1021/acs.inorgchem.6b02294.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-5658-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-D6D9-5
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Evers, Juergen1, Author
Moeckl, Leonhard1, Author
Oehlinger, Gilbert1, Author
Koeppe, Ralf1, Author
Schnoeckel, Hansgeorg1, Author
Barkalov, Oleg2, Author              
Medvedev, Sergey3, Author              
Naumov, Pavel2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Sergiy Medvediev, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863438              

Content

show
hide
Free keywords: -
 Abstract: SiO2 exhibits a high-pressure high-temperature polymorphism, leading to an increase in silicon coordination number and density. However, for the related compound SiS2 such pressure-induced behavior has not been observed with tetrahedral coordination yet. All four crystal structures of SiS2 known so far contain silicon with tetrahedral coordination. In the orthorhombic, ambient-pressure phase these tetrahedra share edges and achieve only low space filling and density. Up to 4 GPa and 1473 K, three phases can be quenched as metastable phases from high-pressure high-temperature to ambient conditions. Space occupancy and density are increased first by edge and corner sharing and then by comer sharing alone. The structural situation of SiS2 up to the current study resembles that of SiO2 in 1960: Then, in its polymorphs only Si-O-4 tetrahedra were known. But in 1961, a polymorph with rutile structure was discovered: octahedral Si-O-6 coordination was established. Now, 50 years later, we report here on the transition from 4 fold to 6-fold coordination in SiS2, the sulfur analogue of silica.

Details

show
hide
Language(s): eng - English
 Dates: 2017-01-022017-01-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Inorganic Chemistry
  Abbreviation : Inorg. Chem.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 56 (1) Sequence Number: - Start / End Page: 372 - 377 Identifier: ISSN: 0020-1669
CoNE: /journals/resource/0020-1669