DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, SH | - |
dc.contributor.author | Thi, TNN | - |
dc.contributor.author | Heo, NH | - |
dc.contributor.author | Kim, GH | - |
dc.contributor.author | Hong, SB | - |
dc.contributor.author | Head, JD | - |
dc.contributor.author | Seff, K | - |
dc.date.accessioned | 2016-04-01T09:02:58Z | - |
dc.date.available | 2016-04-01T09:02:58Z | - |
dc.date.created | 2009-08-23 | - |
dc.date.issued | 2008-07-31 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.other | 2008-OAK-0000011004 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/29341 | - |
dc.description.abstract | A single crystal of Ag-12-A (zeolite LTA) was prepared by the dynamic ion-exchange of Na-12-A with aqueous 0.05 M AgNO3. It was washed with CH3OH and allowed to react with a stream of 0.05 M KCl in CH3OH at 294 K. The crystal structure of the product vertical bar K2.35Ag1.1(Ag4Cl4)(0.45)(C3H3O3)(1.1)(K3Cl)(3.45)(K-3(OH)(2))(0.55)(H2O)(>= 3.0)vertical bar-[Si12Al12O48]-LTA (a = 12.292(1) angstrom) was determined by single-crystal X-ray diffraction in the cubic space group Pm (3) over barm at 294 K. It was refined to the final error index, R-1 = 0.052, based on the 371 reflections for which F-o > 4 sigma(F-o). Ag4Cl4 nanoclusters were found in about 45% of the sodalite cavities. Each Ag4Cl4 cluster (interpenetrating tetrahedra; symmetry T-d, Ag-Cl = 3.105(17) angstrom) is held in place by the coordination of each of its four Ag+ ions to three oxygens of the zeolite framework (Ag-O = 2.493(5) angstrom) and by the coordination of each of its four Cl- ions to a K+ ion through a 6-ring (Cl-K = 2.70(3) angstrom). In each of the remaining 55% of the sodalite cavities, two reduced planar 1,3,5-tripyrylium cations, [(CH)(3)O-3](2)(2+) (C-O = 1.52(3) angstrom), are found. These parallel eclipsed rings (symmetry D-3d) have an interplanar distance of only 2.43 angstrom due to sigma double bonding between the rings, the result of four electrons in 12-center bonding pi* orbitals, and to polar attraction. Each ring makes three strong hydrogen bonds (CH center dot center dot center dot O = 2.84(3) angstrom) to oxygens of the zeolite framework, and a Ag+ ion coordinates to the three oxygens of one ring (Ag-O = 2.68(9) angstrom). The large cavities are filled with K+, Cl-, Ag+, OH-, and H2O; the K3Cl2+ unit predominates. The 1,3,5-tripyrylium ring, isoelectronic with benzene, had not been reported before. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.subject | MOLECULAR-ORBITAL METHODS | - |
dc.subject | EXCHANGED ZEOLITE | - |
dc.subject | SODALITE CAVITIES | - |
dc.subject | X-RAY | - |
dc.subject | OPTICAL-PROPERTIES | - |
dc.subject | CDS SUPERCLUSTERS | - |
dc.subject | AGI CLUSTERS | - |
dc.subject | SILVER | - |
dc.subject | COMPLEXES | - |
dc.subject | PYRYLIUM | - |
dc.title | SINGLE CRYSTAL STRUCTURE OF ZEOLITE A (LTA) CONTAINING AG4CL4 NANOCLUSTERS AND REDUCED 1,3,5-TRIPYRYLIUM DIMERS WITH REMARKABLY SHORT 2.43 ANGSTROM INTERPLANAR SPACINGS | - |
dc.type | Article | - |
dc.contributor.college | 환경공학부 | - |
dc.identifier.doi | 10.1021/JP801717E | - |
dc.author.google | Kim, SH | - |
dc.author.google | Thi, TNN | - |
dc.author.google | Heo, NH | - |
dc.author.google | Kim, GH | - |
dc.author.google | Hong, SB | - |
dc.author.google | Head, JD | - |
dc.author.google | Seff, K | - |
dc.relation.volume | 112 | - |
dc.relation.issue | 30 | - |
dc.relation.startpage | 11181 | - |
dc.relation.lastpage | 11193 | - |
dc.contributor.id | 10077624 | - |
dc.relation.journal | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICAL CHEMISTRY C, v.112, no.30, pp.11181 - 11193 | - |
dc.identifier.wosid | 000257927100019 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 11193 | - |
dc.citation.number | 30 | - |
dc.citation.startPage | 11181 | - |
dc.citation.title | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.citation.volume | 112 | - |
dc.contributor.affiliatedAuthor | Hong, SB | - |
dc.identifier.scopusid | 2-s2.0-49449098832 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 3 | - |
dc.description.scptc | 3 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | MOLECULAR-ORBITAL METHODS | - |
dc.subject.keywordPlus | EXCHANGED ZEOLITE | - |
dc.subject.keywordPlus | SODALITE CAVITIES | - |
dc.subject.keywordPlus | X-RAY | - |
dc.subject.keywordPlus | OPTICAL-PROPERTIES | - |
dc.subject.keywordPlus | CDS SUPERCLUSTERS | - |
dc.subject.keywordPlus | AGI CLUSTERS | - |
dc.subject.keywordPlus | SILVER | - |
dc.subject.keywordPlus | COMPLEXES | - |
dc.subject.keywordPlus | PYRYLIUM | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
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