Disklike Hepta- and Tridecanuclear Cobalt Clusters. Synthesis, Structures, Magnetic Properties, and DFT Calculations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33152654" target="_blank" >RIV/61989592:15310/14:33152654 - isvavai.cz</a>

Výsledek na webu

<a href="http://pubs.acs.org/doi/pdf/10.1021/ic403093r" target="_blank" >http://pubs.acs.org/doi/pdf/10.1021/ic403093r</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/ic403093r" target="_blank" >10.1021/ic403093r</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Disklike Hepta- and Tridecanuclear Cobalt Clusters. Synthesis, Structures, Magnetic Properties, and DFT Calculations

Popis výsledku v původním jazyce

The synthesis, structure and magnetic properties are reported of two disklike mixed-valence cobalt clusters [(CoCo6II)-Co-III(thmp)(2)(acac)(6)(ada)(3)] (1) and [(Co2Co11II)-Co-III-(thmp)(4)(Me3CCOO)(4)(acac)(6)(OH)(4) (H2O)(4)](Me3CCOO)(2)center dot H2O(2). Heptanuclear complex 1 was prepared by solvothermal reaction of cobalt(II) acetylacetonate (Co-(acac)(2)), 1,1,1-tris(hydroxymethyl)-propane (H(3)thmp), and adamantane-1-carboxylic acid (Hada), whereas by substituting Hada with Me3CCO2H, tridecanuclear complex 2 was obtained with an unexpected [Co-2(III) Co-11(II)] core. The core structures of 1 and 2 are related to each other: that of 1 arranges as a centered hexagon of a central Co-III ion surrounded by a [Co-6(II)] hexagon, while that of 2 canbe described as a larger oligomer based on two vertex-sharing [(CoCo6II)-Co-III] clusters. Variable-temperature direct-current magnetic susceptibility measurements demonstrated overall ferromagnetic coupling between the Co-II ions within

Název v anglickém jazyce

Disklike Hepta- and Tridecanuclear Cobalt Clusters. Synthesis, Structures, Magnetic Properties, and DFT Calculations

Popis výsledku anglicky

The synthesis, structure and magnetic properties are reported of two disklike mixed-valence cobalt clusters [(CoCo6II)-Co-III(thmp)(2)(acac)(6)(ada)(3)] (1) and [(Co2Co11II)-Co-III-(thmp)(4)(Me3CCOO)(4)(acac)(6)(OH)(4) (H2O)(4)](Me3CCOO)(2)center dot H2O(2). Heptanuclear complex 1 was prepared by solvothermal reaction of cobalt(II) acetylacetonate (Co-(acac)(2)), 1,1,1-tris(hydroxymethyl)-propane (H(3)thmp), and adamantane-1-carboxylic acid (Hada), whereas by substituting Hada with Me3CCO2H, tridecanuclear complex 2 was obtained with an unexpected [Co-2(III) Co-11(II)] core. The core structures of 1 and 2 are related to each other: that of 1 arranges as a centered hexagon of a central Co-III ion surrounded by a [Co-6(II)] hexagon, while that of 2 canbe described as a larger oligomer based on two vertex-sharing [(CoCo6II)-Co-III] clusters. Variable-temperature direct-current magnetic susceptibility measurements demonstrated overall ferromagnetic coupling between the Co-II ions within

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/ED2.1.00%2F03.0058" target="_blank" >ED2.1.00/03.0058: Regionální centrum pokročilých technologií a materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Inorganic Chemistry

ISSN

0020-1669

e-ISSN

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Svazek periodika

53

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

5458-5466

Kód UT WoS článku

000336942500011

EID výsledku v databázi Scopus

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