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Assembly of 3-D network structures containing oxydiacetate and CeIII or CeIV Behrsing, Thomas, Deacon, Glen B., Forsyth, Craig M., Forsyth, Maria, Skelton, Brian W. and White, Allan H. 2003, Assembly of 3-D network structures containing oxydiacetate and CeIII or CeIV, Zeitschrift für anorganische und allgemeine chemie, vol. 629, no. 1, pp. 35-44. Attached Files Name Description MIMEType Size Downloads Title Assembly of 3-D network structures containing oxydiacetate and CeIII or CeIV Formatted title Assembly of 3-D network structures containing oxydiacetate and CeIII or CeIV Author(s) Behrsing, Thomas Deacon, Glen B. Forsyth, Craig M. Forsyth, Maria Skelton, Brian W. White, Allan H. Journal name Zeitschrift für anorganische und allgemeine chemie Volume number 629 Issue number 1 Start page 35 End page 44 Publisher Wiley Interscience Place of publication Malden, MA. Publication date 2003-01 ISSN 0044-2313 1521-3749 Keyword(s) cerium carboxylate ligands crystal structure Summary Reaction of CeCl3·7H2O with Na2(oda) (oda = O(CH2CO2)22— oxydiacetate) in a 2:3 ratio gives the neutral cerium(III) complex [Ce2(oda)3(H2O)3]·9H2O (1). Treatment of a 1:3 mixture of CeCl3·7H2O and H2oda in water with 4 molar equivalents of NaOH also gives 1 but, with a larger excess of NaOH, the tri-sodium salt Na3[Ce(oda)3]·9H2O (2) is isolated. Formation of a tri-ammonium analogue of 2 can be achieved by neutralisation of an aqueous solution of CeCl3·7H2O and H2(oda) in a 1:3 ratio by NH4OH, giving (NH4)3[Ce(oda)3]·7H2O (3). Use of the cerium(IV) reagent (NH4)2[Ce(NO3)6] with Na2(oda) results in reduction to cerium(III) under ambient conditions and isolation of 1. However, in the absence of light this reaction yields crystals of the novel cerium(IV) heterobimetallic [Ce(oda)3Na4(NO3)2] (4). Each of these complexes exhibit a 3-D network structure having a common nine-coordinate [Ce(oda)3]n— (n = 2 or 3) subunit, irrespective of the oxidation state of cerium. In 1, six [Ce(oda)3]3— anions are connected, through bridging bidentate carboxylates, to a second Ce3+ site further coordinated by three water molecules. In contrast, the ammonium salt 2, displays isolated [Ce(oda)3]3— anions, devoid of further carboxylate bonding, but enmeshed within a network of hydrogen-bonded NH4+ cations and water molecules. The remarkable structure of 4 consists of infinite 2-D sheets of [Na2(NO3)]+ pillared by [Ce(oda)3]2— units, the connectivity arising by multidentate nitrate and carboxylate bridging. Language eng Field of Research 039999 Chemical Sciences not elsewhere classified Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2003, WILEY-VCH Verlag GmbH & Co. KGaA Persistent URL http://hdl.handle.net/10536/DRO/DU:30030060 Document type: Journal Article Collection: Institute for Technology Research and Innovation Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Fri, 10 Sep 2010, 15:07:47 EST Thu, 23 Sep 2010, 09:55:06 EST Thu, 23 Sep 2010, 09:56:18 EST Filtered Full Citation counts:   Cited 7 times in TR Web of Science Search Google Scholar Access Statistics: 318 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Fri, 10 Sep 2010, 15:07:47 EST

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