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Issue 8, 2012
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Old dog, new tricks: 2,2′-biphenol as a bridging and book-end ligand in discrete and extended Co(II) architectures

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Abstract

We report the first Co(II) based discrete and extended network materials comprising the 2,2′-biphenol ligand. We first present the synthesis and magnetic characterisation of the Co(II) dinuclear complexes [Co(II)2(L)2(py)4]·2EtOH (1) and [Co(II)2(L)2(4-pic)4].2LH2 (2), both of which exhibit antiferromagnetic exchange between their Co(II) centres. The introduction of the co-ligand 2-hydroxypyridine (2-hpH) leads to the production of planar octametallic complex [Co(II)8(OMe)2(L)4(LH)2(2-hp)4(MeCN)4]·MeCN (3). Magnetic susceptibility and magnetisation measurements on 3 indicate dominant ferromagnetic exchange between the Co(II) centres. We also describe the first Co(II)/2,2′-biphenol extended networks in the shape of the 1D coordination polymer {[Co(II)(LH)(4,4-tmdp)2(NO3)](LH2)}n (4) (where 4,4′-tmdp = 4,4′-trimethylenedipyridine) and the 2D brickwall network [Co(II)(LH)(trans-bpe)1.5(NO3)] (5) (where trans-bpe = trans-1,2-bis(4-pyridyl)ethylene), comprising T-shaped nodes.

Graphical abstract: Old dog, new tricks: 2,2′-biphenol as a bridging and book-end ligand in discrete and extended Co(ii) architectures

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Publication details

The article was received on 12 Jan 2012, accepted on 01 Feb 2012 and first published on 03 Feb 2012


Article type: Paper
DOI: 10.1039/C2CE25047K
Citation: CrystEngComm, 2012,14, 2732-2738
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    Old dog, new tricks: 2,2′-biphenol as a bridging and book-end ligand in discrete and extended Co(II) architectures

    N. Berg, S. M. Taylor, A. Prescimone, Euan. K. Brechin and L. F. Jones, CrystEngComm, 2012, 14, 2732
    DOI: 10.1039/C2CE25047K

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