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Synthesis and Characterization of [Fe3 (As3 )3 (As4 )]3- , a Binary Fe/As Zintl Cluster With an Fe3 Core.
Zhang, Wei-Qiang; Li, Zi-Sheng; McGrady, John E; Sun, Zhong-Ming.
Afiliação
  • Zhang WQ; State Key Laboratory of Element-Organic Chemistry, Tianjin Key Lab for Rare Earth Materials and Applications, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China.
  • Li ZS; Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
  • McGrady JE; Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
  • Sun ZM; State Key Laboratory of Element-Organic Chemistry, Tianjin Key Lab for Rare Earth Materials and Applications, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China.
Angew Chem Int Ed Engl ; 62(11): e202217316, 2023 Mar 06.
Article em En | MEDLINE | ID: mdl-36642696
ABSTRACT
We report here the synthesis and structural characterization of the first binary iron arsenide cluster anion, [Fe3 (As3 )3 (As4 )]3- , present in both [K([2.2.2]crypt)]3 [Fe3 (As3 )3 (As4 )] (1) and [K(18-crown-6)]3 [Fe3 (As3 )3 (As4 )]⋅en (2). The cluster contains an Fe3 triangle with three short Fe-Fe bond lengths (2.494(1) Å, 2.459(1) Šand 2.668(2) Šfor 1, 2.471(1) Å, 2.473(1) Šand 2.660(1) Šfor 2), bridged by a 2-butene-like As4 unit. An analysis of the electronic structure using DFT reveals a triplet ground state with direct Fe-Fe bonds stabilizing the Fe3 core.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article