Source:http://linkedlifedata.com/resource/pubmed/id/12769586
| Subject | Predicate | Object | Context |
|---|---|---|---|
| pubmed-article:12769586 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:12769586 | lifeskim:mentions | umls-concept:C0004083 | lld:lifeskim |
| pubmed-article:12769586 | lifeskim:mentions | umls-concept:C0032521 | lld:lifeskim |
| pubmed-article:12769586 | lifeskim:mentions | umls-concept:C0242414 | lld:lifeskim |
| pubmed-article:12769586 | pubmed:issue | 22 | lld:pubmed |
| pubmed-article:12769586 | pubmed:dateCreated | 2003-5-28 | lld:pubmed |
| pubmed-article:12769586 | pubmed:abstractText | A series of structurally related binuclear metallacycles [Cd(NO(3))(2)L](2), where L is an angular exo-bidentate ligand, have been synthesized. Each metallacycle contains two coordinatively unsaturated, chiral metal centers within a single molecule, and the assembly of these metallacycles into polymeric framework structures has been studied systematically for the first time. Stereoselective homochiral association of [Cd(NO(3))(2)L](2) leads to the formation of helical coordination polymers, whereas meso type association results in nonhelical chain structures. The type of stereoselective aggregation depends on the conditions of self-assembly as well as on ligand functionality. Both helical and nonhelical polymeric complexes have been isolated for the metallacycle [Cd(NO(3))(2)(2,4'-pyacph)](2) (2,4'-pyacph = 2,4'-(4-ethynylphenyl)bipyridyl). Homochiral association results in the formation of helical [Cd(NO(3))]( infinity ) chains which link the binuclear [Cd(NO(3))(2)(2,4'-pyacph)](2) metallacycles into racemic two-dimensional sheets which contain both P and M [Cd(NO(3))]( infinity ) helices. In contrast, meso-association leads to the formation of nonhelical one-dimensional chains. It is shown that the product of homochiral association is predominately formed at room temperature and that of meso-association is generated at elevated temperatures. Thus, it may be concluded that the homochiral association appears to be energetically less favorable than the meso-association, a conclusion that has been confirmed by theoretical calculations of the crystal lattice energy. Several high-yield syntheses of bipyridyl-type ligands used for metallacyclic assembly are also reported. | lld:pubmed |
| pubmed-article:12769586 | pubmed:language | eng | lld:pubmed |
| pubmed-article:12769586 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:12769586 | pubmed:status | PubMed-not-MEDLINE | lld:pubmed |
| pubmed-article:12769586 | pubmed:month | Jun | lld:pubmed |
| pubmed-article:12769586 | pubmed:issn | 0002-7863 | lld:pubmed |
| pubmed-article:12769586 | pubmed:author | pubmed-author:TeatSimon JSJ | lld:pubmed |
| pubmed-article:12769586 | pubmed:author | pubmed-author:SchröderMarti... | lld:pubmed |
| pubmed-article:12769586 | pubmed:author | pubmed-author:BlakeAlexande... | lld:pubmed |
| pubmed-article:12769586 | pubmed:author | pubmed-author:ChampnessNeil... | lld:pubmed |
| pubmed-article:12769586 | pubmed:author | pubmed-author:WilsonClaireC | lld:pubmed |
| pubmed-article:12769586 | pubmed:author | pubmed-author:GillPeter M... | lld:pubmed |
| pubmed-article:12769586 | pubmed:author | pubmed-author:KhlobystovAnd... | lld:pubmed |
| pubmed-article:12769586 | pubmed:author | pubmed-author:BrettMatthew... | lld:pubmed |
| pubmed-article:12769586 | pubmed:author | pubmed-author:O'NeillDarrag... | lld:pubmed |
| pubmed-article:12769586 | pubmed:issnType | lld:pubmed | |
| pubmed-article:12769586 | pubmed:day | 4 | lld:pubmed |
| pubmed-article:12769586 | pubmed:volume | 125 | lld:pubmed |
| pubmed-article:12769586 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:12769586 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:12769586 | pubmed:pagination | 6753-61 | lld:pubmed |
| pubmed-article:12769586 | pubmed:year | 2003 | lld:pubmed |
| pubmed-article:12769586 | pubmed:articleTitle | Stereoselective association of binuclear metallacycles in coordination polymers. | lld:pubmed |
| pubmed-article:12769586 | pubmed:affiliation | School of Chemistry, The University of Nottingham, University Park, Nottingham NG7 2RD, U.K. | lld:pubmed |
| pubmed-article:12769586 | pubmed:publicationType | Journal Article | lld:pubmed |