{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T13:53:02Z","timestamp":1783691582978,"version":"3.55.0"},"reference-count":22,"publisher":"American Chemical Society (ACS)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Inorg. Chem."],"published-print":{"date-parts":[[2008,3,1]]},"DOI":"10.1021\/ic800242a","type":"journal-article","created":{"date-parts":[[2008,2,21]],"date-time":"2008-02-21T06:01:18Z","timestamp":1203573678000},"page":"1919-1921","source":"Crossref","is-referenced-by-count":65,"title":["Zintl Phase Variations Through Cation Selection. Synthesis and Structure of A<sub>21<\/sub>Cd<sub>4<\/sub>Pn<sub>18<\/sub> (A = Eu, Sr, Ba; Pn = Sb, Bi)"],"prefix":"10.1021","volume":"47","author":[{"given":"Sheng-Qing","family":"Xia","sequence":"first","affiliation":[{"name":"Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Svilen","family":"Bobev","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2008,2,21]]},"reference":[{"key":"ref1\/cit1","volume-title":"Chemistry, Structure and Bonding of Zintl Phases and Ions","author":"Kauzlarich S. M.","year":"1996"},{"key":"ref2\/cit2","doi-asserted-by":"crossref","first-page":"789","DOI":"10.1002\/anie.199107891","volume":"30","author":"Nesper R.","year":"1991","journal-title":"Angew. Chem., Int. 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Soc."},{"key":"ref10\/cit10","unstructured":"Detailed accounts of the syntheses and the crystallographic characterization are provided inSupporting Information."},{"key":"ref11\/cit11a","volume-title":"Pearson\u2019s Handbook of Crystallographic Data for Intermetallic Phases","author":"Villars P.","year":"1991"},{"key":"ref11\/cit11b","unstructured":"bInorganic Crystal Structure Database (ICSD); FIZ Karlsruhe\/NIST, 2005."},{"key":"ref12\/cit12","unstructured":"Cd2 and Cd3, the center of another neighboring tetrahedron, come somewhat close at a distance of 3.099(1) \u00c5, which the LMTO calculations show to be a very weak interaction; for COHP, seeSupporting Information."},{"key":"ref13\/cit13","doi-asserted-by":"crossref","first-page":"10011","DOI":"10.1021\/ja0728425","volume":"129","author":"Xia S.-Q.","year":"2007","journal-title":"J. Am. Chem. Soc."},{"key":"ref14\/cit14","doi-asserted-by":"crossref","first-page":"10720","DOI":"10.1021\/ja002709b","volume":"122","author":"Kim H.","year":"2000","journal-title":"J. Am. Chem. Soc."},{"key":"ref15\/cit15","doi-asserted-by":"crossref","first-page":"874","DOI":"10.1021\/ic061958j","volume":"46","author":"Xia S.-Q.","year":"2007","journal-title":"Inorg. Chem."},{"key":"ref16\/cit16","unstructured":"Sr2Sb3(Z. Naturforsch.1979,34B, 1162) and Sr2Bi3(Mater. Res. Bull.1994,29, 149) are seemingly such examples; however, despite the apparent similarities, the electron count in both cases is very different and only Sr2Sb3can be considered as a Zintl phase."},{"key":"ref17\/cit17","doi-asserted-by":"crossref","first-page":"751","DOI":"10.1107\/S0567739476001551","volume":"32","author":"Shannon R. 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