✦ LIBER ✦

PMR study of ligand exchange rates in aluminium perchlorate solutions in methanol and ethanol

✍ Scribed by Iwona Wawer

Publisher: Elsevier Science
Year: 1982
Weight: 379 KB
Volume: 23
Category: Article
ISSN: 0378-4487
DOI: 10.1016/0378-4487(82)80051-4

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✦ Synopsis

The kinetics of exchange of the whole molecule between salvation sphere of A13+ and bulk at A1(C104)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 A H 4 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.

' and CH ' signals of 2 ethanol from the salvation sphere are broad and overlapped with multiplets of

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