{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:23:14Z","timestamp":1760242994478,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2015,4,22]],"date-time":"2015-04-22T00:00:00Z","timestamp":1429660800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002461","name":"Chungbuk National University","doi-asserted-by":"publisher","award":["2012"],"award-info":[{"award-number":["2012"]}],"id":[{"id":"10.13039\/501100002461","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Three quinary polar intermetallic compounds in the (Eu1\u2212xCax)9In8(Ge1\u2212ySny)8 (x = 0.66, y = 0.03) and the (Eu1\u2212xCax)3In(Ge3-ySn1+y) (x = 0.66, 0.68; y = 0.13, 0.27) phases have been synthesized using the molten In-metal flux method, and the crystal structures  are characterized by powder and single-crystal X-ray diffractions. Two orthorhombic structural types can be viewed as an assembly of polyanionic frameworks consisting of  the In(Ge\/Sn)4 tetrahedral chains, the bridging Ge2 dimers, either the annulene-like  \u201c12-membered rings\u201d for the (Eu1\u2212xCax)9In8(Ge1\u2212ySny)8 series or the cis-trans Ge\/Sn-chains for the (Eu1\u2212xCax)3In(Ge3\u2212ySn1+y) series, and several Eu\/Ca-mixed cations. The most noticeable difference between two structural types is the amount and the location of  the Sn-substitution for Ge: only a partial substitution (11%) occurs at the In(Ge\/Sn)4 tetrahedron in the (Eu1\u2212xCax)9In8(Ge1\u2212ySny)8 series, whereas both a complete and a partial substitution (up to 27%) are observed, respectively, at the cis-trans Ge\/Sn-chain and at the In(Ge\/Sn)4 tetrahedron in the (Eu1\u2212xCax)3In(Ge3\u2212ySn1+y) series. A series of tight-binding linear muffin-tin orbital calculations is conducted to understand overall electronic structures and chemical bonding among components. Magnetic susceptibility measurement indicates a ferromagnetic ordering of Eu atoms below 5 K for Eu1.02(1)Ca1.98InGe2.87(1)Sn1.13.<\/jats:p>","DOI":"10.3390\/ijms16049017","type":"journal-article","created":{"date-parts":[[2015,4,22]],"date-time":"2015-04-22T12:14:23Z","timestamp":1429704863000},"page":"9017-9036","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Crystal Structure, Chemical Bonding and Magnetism Studies for Three Quinary Polar Intermetallic Compounds in the  (Eu1\u2212xCax)9In8(Ge1\u2212ySny)8 (x = 0.66, y = 0.03) and the  (Eu1\u2212xCax)3In(Ge3\u2212ySn1+y) (x = 0.66, 0.68; y = 0.13, 0.27) Phases"],"prefix":"10.3390","volume":"16","author":[{"given":"Hyein","family":"Woo","sequence":"first","affiliation":[{"name":"Department of Chemistry, Chungbuk National University, Cheongju, Chungbuk 362-763, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eunyoung","family":"Jang","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Chungbuk National University, Cheongju, Chungbuk 362-763, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jin","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yunho","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jongsik","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Dong-A University, Busan 604-714, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9710-2166","authenticated-orcid":false,"given":"Tae-Soo","family":"You","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Chungbuk National University, Cheongju, Chungbuk 362-763, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,4,22]]},"reference":[{"key":"ref_1","unstructured":"Kanatzidis, M.G. 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