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Solvothermal synthesis of enneanuclear [CuII7LnIII2] clusters.

Autorzy

Angelos B. Canaj

Demetrios I. Tzimopoulos

Marta Otręba

Tadeusz Lis

Ross Inglis

Constantinos J. Milios

Rok wydania

2015

Czasopismo

Dalton Transactions

Numer woluminu

44

Strony

19880-19885

DOI

10.1039/c5dt03542b

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

Employment of H3L (= 2-(β-naphthalideneamino)-2-hydroxymethyl-1-propanol) in mixed-metal copper-lanthanide cluster chemistry has led to the isolation of four new enneanuclear heteronuclear isostructural [CuII7LnIII2] complexes. More specifically, the solvothermal reaction of Cu2(OAc)4·2H2O with H3L and the corresponding lanthanide nitrate salt in MeCN in the presence of a base, NEt3, yielded three complexes with the general formula [CuII7LnIII2(L)4(HL)2(OAc)4]·2MeCN (Ln: Gd, 1·2MeCN; Tb, 2·2MeCN; Dy, 3·2MeCN), while in addition the YIII analogue, [CuII7YIII2(L)4(HL)2(OAc)4]·2MeCN (4·2MeCN), was also synthesized in the same manner. The structure of the cluster describes two corner-sharing [Cu3Ln] cubane metallic units, each one further connected to one CuII ion. Dc magnetic susceptibility studies in the 5–300 K range for complexes 1–4 reveal the presence of both ferromagnetic and antiferromagnetic exchange interactions within the metallic clusters.

Adres publiczny

http://dx.doi.org/10.1039/c5dt03542b

Strona internetowa wydawcy

https://www.rsc.org/

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