2015
DOI: 10.1002/chem.201501731
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Cerium(IV) Hexanuclear Clusters from Cerium(III) Precursors: Molecular Models for Oxidative Growth of Ceria Nanoparticles

Abstract: Reactions of cerium(III) nitrate, Ce(NO3 )3 ⋅6 H2 O, with different carboxylic acids, such as pivalic acid, benzoic acid, and 4-methoxybenzoic acid, in the presence of a tridentate N,N,N-donor ligand, diethylenetriamine (L(1) ), under aerobic conditions yielded the corresponding cerium hexamers Ce6 O8 (O2 CtBu)8 (L(1) )4 (1), Ce6 O8 (O2 CC6 H5 )8 (L(1) )4 (2), and Ce6 O8 (O2 CC6 H4 -4-OCH3 )8 (L(1) )4 (3). Hexamers 1, 2, and 3 contain the same octahedral Ce(IV) 6 O8 core, in which all interstitial oxygen atoms… Show more

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Cited by 51 publications
(50 citation statements)
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“…Thus, we have firstly observed[17a] the synthesis of Ce 6 L 4 with stable fluorite‐like core by a direct redox reaction between Ce(NO 3 ) 3 , Hpiv and deta with molar ratio 1:3:5 in acetonitrile media in air (Scheme ). Later, similar solvate Ce 6 L 4 · 2CH 3 CN has been reported by Mathey et al…”
Section: Resultssupporting
confidence: 79%
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“…Thus, we have firstly observed[17a] the synthesis of Ce 6 L 4 with stable fluorite‐like core by a direct redox reaction between Ce(NO 3 ) 3 , Hpiv and deta with molar ratio 1:3:5 in acetonitrile media in air (Scheme ). Later, similar solvate Ce 6 L 4 · 2CH 3 CN has been reported by Mathey et al…”
Section: Resultssupporting
confidence: 79%
“…There are two structures of Ce 6 L 4 being reported in the present work, Ce 6 O 8 (piv) 8 (deta) 4 and Ce 6 O 8 (piv) 8 (deta) 4 · 0.7CH 3 CN. Additionally, the structure of Ce 6 O 8 (piv) 8 (deta) 4 · 2CH 3 CN was reported earlier . All of three structures are comprised of the same isolated centrosymmetric molecules Ce 6 O 8 (piv) 8 (deta) 4 with octahedral {Ce 6 (µ 3 ‐O) 8 } core, in contrast to distorted {Ce 6 (µ 3 ‐O) 4 (µ 3 ‐OH) 4 } core observed in related structures of Ce 6 O 4 (OH) 4 (piv) 12 (deta) 2 and Ce 6 O 4 (OH) 4 (piv) 12 .…”
Section: Resultssupporting
confidence: 52%
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