Tuning magnetic properties using targeted structural distortion: New additions to a family of Mn6 single-molecule magnets
LF Jones, ME Cochrane, BD Koivisto, DA Leigh… - Inorganica Chimica …, 2008 - Elsevier
Inorganica Chimica Acta, 2008•Elsevier
We report the synthesis and magnetic properties of three hexametallic Mn clusters:[Mn6O2
(Et-sao) 6 (O2C-Naphth) 2 (EtOH) 4 (H2O) 2](1)(HO2C-Naphth= 1-naphthoic acid, Et-
saoH2= 2-hydroxyphenylpropanone oxime),[Mn6O2 (Et-sao) 6 (O2C-Anthra) 2 (EtOH) 4
(H2O) 2]· 0.66 EtOH· 0.33 H2O (HO2C-Anthra= anthracene-9-carboxylic acid)(2· 0.66 EtOH·
0.33 H2O) and [Mn6O2 (Et-sao) 6 (O2CPhCCH) 2 (EtOH) 4 (H2O) 2]· 1.7 EtOH· 0.3 H2O
(HO2CPhCCH= 4-ethynylbenzoic acid)(3· 1.7 EtOH· 0.3 H2O). Clusters 1–3 exhibit …
(Et-sao) 6 (O2C-Naphth) 2 (EtOH) 4 (H2O) 2](1)(HO2C-Naphth= 1-naphthoic acid, Et-
saoH2= 2-hydroxyphenylpropanone oxime),[Mn6O2 (Et-sao) 6 (O2C-Anthra) 2 (EtOH) 4
(H2O) 2]· 0.66 EtOH· 0.33 H2O (HO2C-Anthra= anthracene-9-carboxylic acid)(2· 0.66 EtOH·
0.33 H2O) and [Mn6O2 (Et-sao) 6 (O2CPhCCH) 2 (EtOH) 4 (H2O) 2]· 1.7 EtOH· 0.3 H2O
(HO2CPhCCH= 4-ethynylbenzoic acid)(3· 1.7 EtOH· 0.3 H2O). Clusters 1–3 exhibit …
We report the synthesis and magnetic properties of three hexametallic Mn clusters: [Mn6O2(Et-sao)6(O2C-Naphth)2(EtOH)4(H2O)2] (1) (HO2C-Naphth=1-naphthoic acid, Et-saoH2=2-hydroxyphenylpropanone oxime), [Mn6O2(Et-sao)6(O2C-Anthra)2(EtOH)4(H2O)2]·0.66EtOH·0.33H2O (HO2C-Anthra=anthracene-9-carboxylic acid) (2·0.66EtOH·0.33H2O) and [Mn6O2(Et-sao)6(O2CPhCCH)2(EtOH)4(H2O)2]·1.7EtOH·0.3H2O (HO2CPhCCH=4-ethynylbenzoic acid) (3·1.7EtOH·0.3H2O). Clusters 1–3 exhibit ferromagnetic exchange between all six MnIII centres resulting in S=12 ground spin states. Ac magnetic susceptibility and single crystal micro-SQUID measurements on 1–3 confirm SMM behaviour with barriers to magnetisation reversal of 60.12 (1), 60.10 (2) and 66.79 (3) K.
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