Linked Life Data

12691552

Source:http://linkedlifedata.com/resource/pubmed/id/12691552

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2003-4-14
pubmed:abstractText
Excitation (410 nm) of the bimetallic [(bpy)(2)Ru(CN)(mu-CN)Rh(NH(3))(4)Br](2+) produces the MLCT state localized on the (bpy)(2)Ru(CN)(2) ligand. Photoinduced cleavage of the bimetallic occurs in the presence of [H(+)], and the dependence yields a K(a) equivalent to that for ground-state cis-(bpy)(2)Ru(CN)(2) implying separation of the bimetallic prior to relaxation. The pH dependence and the emissivity of a bimetallic composed of components that individually quench at a diffusion controlled rate suggest that rupture of the RuCN-Rh bond is due to the reduction in electron density at the cyano ligand that occurs on population of the MLCT state. Unlike known photoinduced metal ligand dissociations, where the excitation energy is consumed in the dissociation, the dissociated "(bpy)(2)Ru(CN)(2) ligand" remains excited.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Apr
pubmed:issn
0020-1669
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2486-8
pubmed:year
2003
pubmed:articleTitle
Excited-state acid-base chemistry: evidence for a dissociative excited state.
pubmed:affiliation
Department of Chemistry and Biochemistry, Manhattan College, Riverdale, New York 10471, USA. jianwei.fan@manhattan.edu
pubmed:publicationType
Journal Article