Linked Life Data

15316988

Source:http://linkedlifedata.com/resource/pubmed/id/15316988

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
16
pubmed:dateCreated
2004-8-19
pubmed:abstractText
A new anhydrous aluminoborate Al4B6O15 (PKU-5) has been synthesized in a boric acid flux in a closed system at 350 degrees C. PKU-5, which crystallizes in the space group R3 with the lattice constants a=11.43398(9) and c=6.48307(5) A, consists of Al octahedra and triangularly coordinated boron. The Al octahedron adopts the (10,3)-a network, in which each octahedron shares three edges with the neighboring octahedra forming ten-membered-ring channels. The octahedral backbone in PKU-5 can be considered as a primary octahedral framework topology and, setting out from the structures of the aluminoborates (PKU-1 and PKU-5), we propose construction rules for the octahedral frameworks. There are two types of connections for edge-sharing octahedra in porous frameworks, trans and cis type, by which various microporous octahedral frameworks of different topologies can be constructed. The borate groups share oxygens with the Al octahedral frameworks forming two kinds of three-membered-ring units consisting of two octahedra and one triangle (2Al+B) and one octahedron and two triangles (Al+2B), respectively.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0947-6539
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3901-6
pubmed:dateRevised
2009-8-4
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
PKU-5: an aluminoborate with novel octahedral framework topology.
pubmed:affiliation
State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't