Change search
ReferencesLink to record
Permanent link

Direct link
2D metal slabs in new nickel-tin chalcogenides Ni(7-delta)SnQ(2) (Q=Se, Te): average crystal and electronic structures, chemical bonding and physical properties
KTH, Superseded Departments, Chemistry.
Show others and affiliations
2004 (English)In: Journal of Solid State Chemistry, ISSN 0022-4596, E-ISSN 1095-726X, Vol. 177, no 10, 3616-3625 p.Article in journal (Refereed) Published
Abstract [en]

A systematic search for mixed low-valence, nickel-tin chalcogenides performed by establishing phase relations in the parts of Ni-Sn-Se and Ni-Sn-Te ternary systems resulted in the discovery of two new compounds, Ni5.62SnSe2 and Ni5.78SnTe2 Single crystals of both compounds were prepared by chemical transport with iodine and crystal structures were determined by single crystal X-ray investigation. The ED patterns for Ni5.78SnTe2 showed the presence of satellite reflections, which indicate a modulated structure with qapproximate to0.4a*. Average crystal structures of both compounds were determined to be of tetragonal symmetry (, Z = 2) with a = 3.6890(8) Angstrom, c = 18.648(3) Angstrom, R-w = 0.0716 and a = 3.7680(5) Angstrom, c = 19.419(4) Angstrom, R-w, 0.0832, correspondingly, and are isostructural to known Ni5.72SbSe2 and Ni5.66SbTe2. Measurements were carried out for both compounds with respect to thermal, electrical and magnetic properties. Ab initio band structure calculations were also performed to take a first glance into the electronic structure of such type compounds. The anisotropy of their band structure was found. Physical property measurements showed both compounds to be the anisotropic metallic conductors and paramagnetics. Calculated difference charge density maps revealed pairwise covalent and multicenter metallic nature of the d-metal-chalcogen and d-metal-p-metal interactions, respectively.

Place, publisher, year, edition, pages
2004. Vol. 177, no 10, 3616-3625 p.
Keyword [en]
heterometallic bonds, mixed chalcogenides, chemical bonding, physical properties
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-23802DOI: 10.1016/j.jssc.2004.05.061ISI: 000224465500051ScopusID: 2-s2.0-7044286461OAI: diva2:342501
QC 20100525 QC 20110922Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-09-22Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Kloo, Lars A.
By organisation
In the same journal
Journal of Solid State Chemistry
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 59 hits
ReferencesLink to record
Permanent link

Direct link