Source:http://linkedlifedata.com/resource/pubmed/id/17181246
Subject | Predicate | Object | Context |
---|---|---|---|
pubmed-article:17181246 | rdf:type | pubmed:Citation | lld:pubmed |
pubmed-article:17181246 | lifeskim:mentions | umls-concept:C0333343 | lld:lifeskim |
pubmed-article:17181246 | lifeskim:mentions | umls-concept:C0078755 | lld:lifeskim |
pubmed-article:17181246 | lifeskim:mentions | umls-concept:C0444626 | lld:lifeskim |
pubmed-article:17181246 | lifeskim:mentions | umls-concept:C0205360 | lld:lifeskim |
pubmed-article:17181246 | lifeskim:mentions | umls-concept:C1521827 | lld:lifeskim |
pubmed-article:17181246 | lifeskim:mentions | umls-concept:C0054417 | lld:lifeskim |
pubmed-article:17181246 | lifeskim:mentions | umls-concept:C2729610 | lld:lifeskim |
pubmed-article:17181246 | pubmed:issue | 51 | lld:pubmed |
pubmed-article:17181246 | pubmed:dateCreated | 2006-12-21 | lld:pubmed |
pubmed-article:17181246 | pubmed:abstractText | The crystal structure and thermal stability of two cadmium sulfide nanoclusters prepared in zeolite A (LTA) have been studied by XPS, TGA, and single-crystal and powder XRD. The crystal structures of Cd2.4Na3.2(Cd6S4)0.4(Cd2Na2S)0.6(H2O)> or =5.8[Si12Al12O48]-LTA (a = 12.2919(7) A, crystal 1 (hydrated)) and /Cd4Na2(Cd2O)(Na2O)/[Si12Al12O48]-LTA (a = 12.2617(4) A, crystal 2 (dehydrated)) were determined by single-crystal methods in the cubic space group Pm3m at 294(1) K. Crystal 1 was prepared by ion exchange of Na12-LTA in an aqueous stream 0.05 M in Cd2+, followed by washing in a stream of water, followed by reaction in an aqueous stream 0.05 M in Na2S. Crystal 2 was made by dehydrating crystal 1 at 623 K and 1 x 10(-6) Torr for 3 days. In crystal 1, Cd6S4(4+) nanoclusters were found in and extending out of about 40% of the sodalite cavities. Central to each Cd6S4(4+) cluster is a Cd4S4 unit (interpenetrating Cd2+ and S2- tetrahedra with near Td symmetry, Cd-S = 2.997(24) A, Cd-S-Cd = 113.8(12) degrees, and S-Cd-S = 58.1(24) degrees). Each of the two remaining Cd2+ ions bonds radially through a 6-ring of the zeolite framework to a sulfide ion of this Cd4S4 unit (Cd-S = 2.90(8) A). In each of the remaining 60% of the sodalite cavities of crystal 1, a planar Cd2Na2S4+ cluster was found (Cd-S/Na-S = 2.35(5)/2.56(14) A and Cd-S-Cd/Na-S-Na = 122(5)/92(7) degrees). Cd6S4(4+) and Cd2Na2S4+ are stable within the zeolite up to about 700 K in air. Upon vacuum dehydration at 623 K, all sulfur was lost (crystal 2). Instead as anions, only two oxide ions remain per sodalite unit. One bridges between two Cd2+ ions (Cd2O2+, Cd-O = 2.28(3) A) and the other between two Na+ ions (Na2O, Na-O = 2.21(10) A). | lld:pubmed |
pubmed-article:17181246 | pubmed:language | eng | lld:pubmed |
pubmed-article:17181246 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
pubmed-article:17181246 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
pubmed-article:17181246 | pubmed:month | Dec | lld:pubmed |
pubmed-article:17181246 | pubmed:issn | 1520-6106 | lld:pubmed |
pubmed-article:17181246 | pubmed:author | pubmed-author:HongSuk... | lld:pubmed |
pubmed-article:17181246 | pubmed:author | pubmed-author:HeoNam HoNH | lld:pubmed |
pubmed-article:17181246 | pubmed:author | pubmed-author:SeffKarlK | lld:pubmed |
pubmed-article:17181246 | pubmed:author | pubmed-author:KimGhyung... | lld:pubmed |
pubmed-article:17181246 | pubmed:author | pubmed-author:KimSeok HanSH | lld:pubmed |
pubmed-article:17181246 | pubmed:issnType | lld:pubmed | |
pubmed-article:17181246 | pubmed:day | 28 | lld:pubmed |
pubmed-article:17181246 | pubmed:volume | 110 | lld:pubmed |
pubmed-article:17181246 | pubmed:owner | NLM | lld:pubmed |
pubmed-article:17181246 | pubmed:authorsComplete | Y | lld:pubmed |
pubmed-article:17181246 | pubmed:pagination | 25964-74 | lld:pubmed |
pubmed-article:17181246 | pubmed:dateRevised | 2007-3-23 | lld:pubmed |
pubmed-article:17181246 | pubmed:year | 2006 | lld:pubmed |
pubmed-article:17181246 | pubmed:articleTitle | Preparation, crystal structure, and thermal stability of the cadmium sulfide nanoclusters Cd6S44+ and Cd2Na2S4+in the sodalite cavities of zeolite A (LTA). | lld:pubmed |
pubmed-article:17181246 | pubmed:affiliation | Laboratory of Structural Chemistry, Department of Applied Chemistry, Kyungpook National University, Daegu 702-701, Korea. | lld:pubmed |
pubmed-article:17181246 | pubmed:publicationType | Journal Article | lld:pubmed |