Repozytorium

Tetranuclear manganese complexes with [MnII4] and [MnII2MnIII2] units: syntheses, structures, magnetic properties, and DFT study.

Autorzy

Lucjan B. Jerzykiewicz

Józef Utko

Marek Duczmal

Przemysław Starynowicz

Piotr Sobota

Rok wydania

2010

Czasopismo

European Journal of Inorganic Chemistry

Strony

4492-4498

DOI

10.1002/ejic.201000381

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

Abstract

Two tetranuclear manganese compounds, [Mn432‐L)4Br4(LH)4] (1) and [Mn432‐L)2(μ,η2‐L)4L2Br2] (2), with cubane and defect dicubane‐like cores were synthesized and characterized by single‐crystal X‐ray diffraction, magnetic measurements, and DFT calculations (LH = 2‐methoxyethanol). The magnetic properties of the resulting [Mn4] building blocks are presented and discussed in detail. In particular, in 2 the MnIII–O–MnIII angle 103.12(8)° is the largest observed to date for such a system. The conjunction of antiferromagnetic and ferromagnetic interactions within the tetranuclear mixed‐valent MnII2MnIII2 complexes results in an unusual ST = 1 ground state.

Słowa kluczowe

manganese, metal alcoxides, synthetic methods, X-ray diffraction, magnetic properties

Adres publiczny

https://doi.org/10.1002/ejic.201000381

Strona internetowa wydawcy

onlinelibrary.wiley.com

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