Thermochemical measurement of the ligand field splitting energies for hexaaquocopper (II) and hexaamminecopper (II) ions

The vacuum dehydration of copper (II) sulphate pentahydrate has been shown to pass through the transitory tryhydrate state before proceeding to the monohydrate composition. Based on this, the heat of solution data for the high-energy modification hydrates have been reinterpreted and the low-energy c...

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Main Authors: Muhammad Badri, Jamieson, James W. S.
Format: Article
Language:English
Published: N R C Research Press 1979
Online Access:http://psasir.upm.edu.my/id/eprint/33808/1/33808%20thermochemical.pdf
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author Muhammad Badri,
Jamieson, James W. S.
author_facet Muhammad Badri,
Jamieson, James W. S.
author_sort Muhammad Badri,
collection UPM
description The vacuum dehydration of copper (II) sulphate pentahydrate has been shown to pass through the transitory tryhydrate state before proceeding to the monohydrate composition. Based on this, the heat of solution data for the high-energy modification hydrates have been reinterpreted and the low-energy crystalline hydrates of various compositions have been prepared and their heats of solution measured. From the heat of solution data the maximum energy difference expressed in kcal/mol heptahydrate appears to be of the right order of magnitude to be regarded as the ligand field splitting energy for the hexaaquocopper (II) ion. Similar measurement for the ammine complexes of copper (II) sulphate has also been done and the maximum energy difference was found to agree well with the value of LFSE obtained by spectroscopic method.
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spelling upm.eprints-338082015-04-13T01:23:57Z http://psasir.upm.edu.my/id/eprint/33808/ Thermochemical measurement of the ligand field splitting energies for hexaaquocopper (II) and hexaamminecopper (II) ions Muhammad Badri, Jamieson, James W. S. The vacuum dehydration of copper (II) sulphate pentahydrate has been shown to pass through the transitory tryhydrate state before proceeding to the monohydrate composition. Based on this, the heat of solution data for the high-energy modification hydrates have been reinterpreted and the low-energy crystalline hydrates of various compositions have been prepared and their heats of solution measured. From the heat of solution data the maximum energy difference expressed in kcal/mol heptahydrate appears to be of the right order of magnitude to be regarded as the ligand field splitting energy for the hexaaquocopper (II) ion. Similar measurement for the ammine complexes of copper (II) sulphate has also been done and the maximum energy difference was found to agree well with the value of LFSE obtained by spectroscopic method. N R C Research Press 1979 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/33808/1/33808%20thermochemical.pdf Muhammad Badri, and Jamieson, James W. S. (1979) Thermochemical measurement of the ligand field splitting energies for hexaaquocopper (II) and hexaamminecopper (II) ions. Canadian Journal of Chemistry, 57 (15). pp. 1926-1931. ISSN 0008-4042; ESSN: 1480-3291 http://www.nrcresearchpress.com/doi/abs/10.1139/v79-309 10.1139/v79-309
spellingShingle Muhammad Badri,
Jamieson, James W. S.
Thermochemical measurement of the ligand field splitting energies for hexaaquocopper (II) and hexaamminecopper (II) ions
title Thermochemical measurement of the ligand field splitting energies for hexaaquocopper (II) and hexaamminecopper (II) ions
title_full Thermochemical measurement of the ligand field splitting energies for hexaaquocopper (II) and hexaamminecopper (II) ions
title_fullStr Thermochemical measurement of the ligand field splitting energies for hexaaquocopper (II) and hexaamminecopper (II) ions
title_full_unstemmed Thermochemical measurement of the ligand field splitting energies for hexaaquocopper (II) and hexaamminecopper (II) ions
title_short Thermochemical measurement of the ligand field splitting energies for hexaaquocopper (II) and hexaamminecopper (II) ions
title_sort thermochemical measurement of the ligand field splitting energies for hexaaquocopper ii and hexaamminecopper ii ions
url http://psasir.upm.edu.my/id/eprint/33808/1/33808%20thermochemical.pdf
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AT jamiesonjamesws thermochemicalmeasurementoftheligandfieldsplittingenergiesforhexaaquocopperiiandhexaamminecopperiiions