Linked Life Data

18322324

Source:http://linkedlifedata.com/resource/pubmed/id/18322324

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 3
pubmed:dateCreated
2008-3-6
pubmed:abstractText
Two hydrated complexes of monomeric dihydroxyacetone (DHA; the simplest ketose), viz. the calcium bromide complex bis(mu-dihydroxyacetone)bis[tetraaquacalcium(II)] tetrabromide (isomorphous with the chloride compound reported previously), [Ca(2)(C(3)H(6)O(3))(2)(H(2)O)(8)]Br(4), (2e), and the cadmium chloride complex poly[[bis(mu-dihydroxyacetone)bis[bis(dihydroxyacetone)cadmium(II)]] [diaquatetradeca-mu-chlorido-dichloridohexacadmium(II)] tetrahydrate], {[Cd(2)(C(3)H(6)O(3))(6)][Cd(6)Cl(16)(H(2)O)(2)] x 4 H(2)O}(n), (2f), are described. The Ca(2+) or Cd(2+) ions are bridged by the carbonyl O atoms from two DHA molecules to form centrosymmetric dimers, with Ca...Ca distances of 4.334 (2) and 4.300 (2) A in (2e), and a Cd...Cd distance of 4.195 (1) A in (2f). Almost identical in shape, the eight-coordinate polyhedra of the Ca(2+) and Cd(2+) ions are composed of 2n O atoms from n DHA molecules [n = 2 in (2e) and n = 4 in (2f)] and are completed by four water molecules in (2e). DHA molecules chelate the cations via both the hydroxyl and carbonyl groups and exist in an extended conformation, with both hydroxyl groups being synperiplanar to the carbonyl O atom. The crystal structures are stabilized by similar extensive O-H...X (X = Cl or Br) and O-H...O hydrogen-bond networks involving all hydroxyl groups and the water molecules.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1600-5759
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
64
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
m127-33
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Dihydroxyacetone (DHA) monomer complexes with CaBr2 and CdCl2.
pubmed:affiliation
Faculty of Chemistry, University of Wroc?aw, 14 Joliot-Curie Street, 50-383 Wroc?aw, Poland. slep@eto.wchuwr.pl
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't