A heterobimetallic metal-organic framework with tunable reactive metal sites: synthesis, characterization, and reactivity.
Summary of "A heterobimetallic metal-organic framework with tunable reactive metal sites: synthesis, characterization, and reactivity."
A technique for preparing heterobimetallic frameworks with tunable metal sites is demonstrated by the synthesis of a new two-dimensional metal-organic framework that is constructed from tetra(4-carboxyphenyl)porphyrin and Cd(ii) species. The solid can be prepared in the presence of other divalent transition metals to yield the same framework with the smaller metal ions occupying the porphyrin ligands.
Affiliation
Department of Chemistry and Biochemistry, San Diego State University, San Diego, CA 92182-1030, USA. beauvais@sciences.sdsu.edu.
Journal Details
This article was published in the following journal.
Name: Dalton transactions (Cambridge, England : 2003)
ISSN: 1477-9234
Pages: 7855-8
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22460685
- DOI: http://dx.doi.org/10.1039/c2dt30184a
Medical and Biotech [MESH] Definitions
Coordination Complexes
Neutral or negatively charged ligands bonded to metal cations or neutral atoms. The number of ligand atoms to which the metal center is directly bonded is the metal cation's coordination number, and this number is always greater than the regular valence or oxidation number of the metal. A coordination complex can be negative, neutral, or positively charged.
Metalloproteases
Proteases which use a metal, normally ZINC, in the catalytic mechanism. This group of enzymes is inactivated by metal CHELATORS.
Nanoshells
Nanometer range spherical cores of particular semiconductor compounds surrounded by an ultrathin metal shell that is commonly made of gold or silver. This configuration gives the nanoshells highly tunable optical properties. They have potential in biomedicine for diagnosis and therapy.
Negative Staining
The technique of washing tissue specimens with a concentrated solution of a heavy metal salt and letting it dry. The specimen will be covered with a very thin layer of the metal salt, being excluded in areas where an adsorbed macromolecule is present. The macromolecules allow electrons from the beam of an electron microscope to pass much more readily than the heavy metal; thus, a reversed or negative image of the molecule is created.
Metallochaperones
A family of soluble metal binding proteins that are involved in the intracellular transport of specific metal ions and their transfer to the appropriate metalloprotein precursor.
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