{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T14:20:39Z","timestamp":1774275639097,"version":"3.50.1"},"reference-count":35,"publisher":"International Union of Crystallography (IUCr)","issue":"7","license":[{"start":{"date-parts":[[2013,6,8]],"date-time":"2013-06-08T00:00:00Z","timestamp":1370649600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},{"start":{"date-parts":[[2013,6,8]],"date-time":"2013-06-08T00:00:00Z","timestamp":1370649600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html#TDM"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr C Cryst Struct Commun","Acta Cryst C","Acta Cryst Sect C","Acta Crystallogr C","Acta Crystallogr Sect C","Acta Crystallogr Sect C Cryst Struct Commun"],"published-print":{"date-parts":[[2013,7,15]]},"abstract":"<jats:p>A new ternary dithulium hexacobalt icosastannide, Tm<jats:sub>2.22<\/jats:sub>Co<jats:sub>6<\/jats:sub>Sn<jats:sub>20<\/jats:sub>, and a new quaternary thulium dilithium hexacobalt icosastannide, TmLi<jats:sub>2<\/jats:sub>Co<jats:sub>6<\/jats:sub>Sn<jats:sub>20<\/jats:sub>, crystallize as disordered variants of the binary cubic Cr<jats:sub>23<\/jats:sub>C<jats:sub>6<\/jats:sub>structure type (<jats:italic>cF<\/jats:italic>116). 48 Sn atoms occupy sites of<jats:italic>m.m<\/jats:italic>2 symmetry, 32 Sn atoms sites of .3<jats:italic>m<\/jats:italic>symmetry, 24 Co atoms sites of 4<jats:italic>m.m<\/jats:italic>symmetry, eight Li (or Tm in the case of the ternary phase) atoms sites of \\overline{4} 3m symmetry and four Tm atoms sites of m \\overline{3} m symmetry. The environment of one Tm atom is an 18-vertex polyhedron and that of the second Tm (or Li) atom is a 16-vertex polyhedron. Tetragonal antiprismatic coordination is observed for the Co atoms. Two Sn atoms are enclosed in a heavily deformed bicapped hexagonal prism and a monocapped hexagonal prism, respectively, and the environment of the third Sn atom is a 12-vertex polyhedron. The electronic structures of both title compounds were calculated using the tight-binding linear muffin-tin orbital method in the atomic spheres approximation (TB\u2013LMTO\u2013ASA). Metallic bonding is dominant in these compounds, but the presence of Sn\u2014Sn covalent dumbbells is also observed.<\/jats:p>","DOI":"10.1107\/s0108270113014492","type":"journal-article","created":{"date-parts":[[2013,6,7]],"date-time":"2013-06-07T15:35:58Z","timestamp":1370619358000},"page":"683-688","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":5,"title":["Tm<sub>2.22<\/sub>Co<sub>6<\/sub>Sn<sub>20<\/sub>and TmLi<sub>2<\/sub>Co<sub>6<\/sub>Sn<sub>20<\/sub>stannides as disordered derivatives of the Cr<sub>23<\/sub>C<sub>6<\/sub>structure type"],"prefix":"10.1107","volume":"69","author":[{"given":"Andrij","family":"Stetskiv","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Beata","family":"Rozdzynska-Kielbik","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Volodymyr","family":"Pavlyuk","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2013,6,8]]},"reference":[{"key":"ku3095_bb1","doi-asserted-by":"crossref","first-page":"3060","DOI":"10.1103\/PhysRevB.12.3060","volume":"12","author":"Andersen","year":"1975","journal-title":"Phys. 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