Linked Life Data

12772296

Source:http://linkedlifedata.com/resource/pubmed/id/12772296

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2003-5-28
pubmed:abstractText
The reactions of the octahedral dihydrido complexes [MH(2)(PP(3))] [M=Fe, Ru, Os; PP(3)=P(CH(2)CH(2)PPh(2))(3)] with a variety of weak ROH acids have been studied by IR and NMR methods in either CH(2)Cl(2) or THF in the temperature range from 190 to 290 K. This study has allowed the determination of the spectral and thermodynamic properties associated with the formation of dihydrogen bonds (DHB) between the terminal hydrides and the OH group. Both the DHB enthalpy values and the hydride basicity factors (E(j)) have been found to increase in the order Fe < Ru < Os. The proton transfer process, leading to the DHB complexes, and eventually to eta(2)-H(2) products, has been found to depend on the acidic strength of the alcohol as well as the nature of the solvent. Low temperature IR and NMR techniques have been used to trace the complete energy profile of the proton transfer process involving the osmium complex [OsH(2)(PP(3))] with trifluoroethanol.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
May
pubmed:issn
0947-6539
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2219-28
pubmed:dateRevised
2009-8-4
pubmed:year
2003
pubmed:articleTitle
Low-temperature IR and NMR studies of the interaction of group 8 metal dihydrides with alcohols.
pubmed:affiliation
AN Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences Vavilov str 28, 119 991 Moscow, Russia. epst@ineos.ac.ru
pubmed:publicationType
Journal Article