{"title":"PMR study of ligand exchange rates in aluminium perchlorate solutions in methanol and ethanol","authors":"Iwona Wawer","doi":"10.1016/0378-4487(82)80051-4","DOIUrl":null,"url":null,"abstract":"<div><p>The kinetics of exchange of the whole molecule between solvation sphere of Al<sup>3+</sup> and bulk at Al(ClO<sub>4</sub>)<sub>3</sub> in CH<sub>3</sub>0D, CH<sub>3</sub>CD<sub>2</sub>0D and CD<sub>3</sub>CH<sub>2</sub>0D has been studied by means of line-shape analysis of PMR spectra of methyl and methylene groups. The activation enthalpy Δ H<sup>≠</sup> of 65 kJ/mol for methanol and 52 kJ/mol for ethanol were found. The exchange at 25°C is about 70 times faster for ethanol than for methanol.</p></div>","PeriodicalId":100049,"journal":{"name":"Advances in Molecular Relaxation and Interaction Processes","volume":"23 4","pages":"Pages 269-277"},"PeriodicalIF":0.0000,"publicationDate":"1982-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0378-4487(82)80051-4","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Molecular Relaxation and Interaction Processes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0378448782800514","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
The kinetics of exchange of the whole molecule between solvation sphere of Al3+ and bulk at Al(ClO4)3 in CH30D, CH3CD20D and CD3CH20D has been studied by means of line-shape analysis of PMR spectra of methyl and methylene groups. The activation enthalpy Δ H≠ of 65 kJ/mol for methanol and 52 kJ/mol for ethanol were found. The exchange at 25°C is about 70 times faster for ethanol than for methanol.
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