Some fast reactions in mixed solvents

Simple item page
dc.contributor.advisorBear, John L.
dc.contributor.committeeMemberGeanangel, Russell A.
dc.contributor.committeeMemberWendlandt, Wesley W.
dc.contributor.committeeMemberMcElrath, Eby N.
dc.contributor.committeeMemberHildebrandt, Alvin F.
dc.creatorLin, Chin-tung
dc.date.accessioned2022-06-22T20:15:34Z
dc.date.available2022-06-22T20:15:34Z
dc.date.issued1970
dc.description.abstractThe stability constants and the rate constants for the formation of the one-to-one complexes of nickel and several of the lanthanides with singly charged murexide in H[lowered 2]O, 25% DMSO-H[lowered 2]O, 50% DMSO-H[lowered 2]O and 50% ethanol - H[lowered 2]O mixed solvents have been determined at different temperatures. The formation constants were calculated from spectrophotometric data and the kinetic studies were made on a temperature jump apparatus. The thermodynamic and kinetic parameters obtained from these measurements for the nickel system are interpreted in terms of dielectric constant of the mixed solvents and intermolecular interactions in the solvents. The slowness of nickel murexide complexation reactions compared to other nickel systems reported in the literature is explained by the fast stepwise dissociation of metal-ligand bonds rather than by the chelate ring closure mechanism. After analysis of these data and some literature values for the lanthanide ligand substitution reactions, it is concluded that the process of eliminating the water molecule from the solvated metal ions is coupled to an outer sphere ion pair formation reaction and may be subject to a ligand effect.
dc.description.departmentChemistry, Department of
dc.format.digitalOriginreformatted digital
dc.format.mimetypeapplication/pdf
dc.identifier.other13740407
dc.identifier.urihttps://hdl.handle.net/10657/9918
dc.language.isoen
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.titleSome fast reactions in mixed solvents
dc.type.dcmiText
dc.type.genreThesis
thesis.degree.collegeCollege of Arts and Sciences
thesis.degree.departmentChemistry, Department of
thesis.degree.disciplineChemistry
thesis.degree.grantorUniversity of Houston
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
Lin_1970_13740407.pdf
Size:
4.46 MB
Format:
Adobe Portable Document Format
Download

Collections

Legacy Theses and Dissertations (1940-2009)