Linked Life Data

18163633

Source:http://linkedlifedata.com/resource/pubmed/id/18163633

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-1-16
pubmed:abstractText
Combining linear Zn porphyrin trimers with orthogonally derivatized porphyrin dimers leads rapidly and spontaneously to the formation of monodisperse, torsionally constrained boxes comprising six components and a total of 16 metalloporphyrins. In situ X-ray scattering measurements confirm the formation of monodisperse assemblies of precisely the size expected from model box structures. While simple subunits yield highly symmetrical boxes, we find that sterically demanding subunits produce unusual twisted boxes. Previous studies of porphyrin-based box-like assemblies (squares) for selective catalysis and molecular sieving revealed two function-inhibiting structural problems: torsional motion along the metal-porphyrin-metal axis and ambiguous outside versus inside functionalization (via axial ligation of available Zn(II) sites). The new 16-porphyrin box assemblies eliminate both problems.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1520-5126
pubmed:author
pubmed:issnType
Electronic
pubmed:day
23
pubmed:volume
130
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
836-8
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Coordinative self-assembly and solution-phase X-ray structural characterization of cavity-tailored porphyrin boxes.
pubmed:affiliation
Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.