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| Author | Kirsanova, M.A.; Reshetova, L.N.; Olenev, A.V.; Abakumov, A.M.; Shevelkov, A.V. | ||||
| Title | Semiclathrates of the GePTe system : synthesis and crystal structures | Type | A1 Journal article | ||
Year  |
2011 | Publication | Chemistry: a European journal | Abbreviated Journal | Chem-Eur J |
| Volume | 17 | Issue | 20 | Pages | 5719-5726 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Novel compounds [Ge46−xPx]Tey (13.9≤x≤15.6, 5.92≤y≤7.75) with clathrate-like structures have been prepared and structurally characterized. They crystallize in the space group Fmequation image with the unit cell parameter changing from 20.544(2) to 20.698(2) Å (Z=8) on going from x=13.9 to x=15.6. Their crystal structure is composed of a covalently bonded Ge[BOND]P framework that hosts tellurium atoms in the guest positions and can be viewed as a peculiar variant of the type I clathrate superstructure. In contrast to the conventional type I clathrates, [Ge46−xPx]Tey contain tricoordinated (3b) atoms and no vacancies in the framework positions. As a consequence of the transformation of the framework, the majority of the guest tellurium atoms form a single covalent bond with the host framework and thus the title compounds are the first representative of semiclathrates with covalent bonding. A comparison is made with silicon clathrates and the evolution of the crystal structure upon changing the tellurium content is discussed. | ||||
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| Publisher | Place of Publication | Weinheim | Editor | ||
| Language | Wos | 000290216000028 | Publication Date | 2011-04-05 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0947-6539; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 5.317 | Times cited | 17 | Open Access | |
| Notes | Approved | Most recent IF: 5.317; 2011 IF: 5.925 | |||
| Call Number | UA @ lucian @ c:irua:89773 | Serial | 2981 | ||
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