Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
16
pubmed:dateCreated
1981-10-25
pubmed:abstractText
A 1H NMR study of histidine hydrochloride dissolved in water/dimethyl sulfoxide mixtures gives evidence that dimethyl sulfoxide is able to induce a proton transfer from the imidazolinium nitrogens (mainly N3) to the carboxylate group when its mole fraction becomes greater than 42%. The new tautomeric equilibrium AH2++- in equilibrium AH2+ is quantitatively studied as a function of the solvent composition. In pure dimethyl sulfoxide, this equilibrium is strongly biased toward the monocation AH2+, which represents 91% of the total histidine hydrochloride.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
256
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
8569-72
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Proton transfer in histidine hydrochloride induced by a dipolar aprotic solvent.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't