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Trianionic organoborate triangles

Abrahams, B.F., Boughton, B.A.ORCID: 0000-0001-6342-9814, Choy, H., Clarke, O., Grannas, M.J., Price, D.J. and Robson, R. (2008) Trianionic organoborate triangles. Inorganic Chemistry, 47 (21). pp. 9797-9803.

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The rigid, angular ligand 3,3,3′,3′-tetramethyl-1,1′spirobisindane-5,5′,6,6′-tetrol, LH4, in the form of its tetra-anion, L4−, affords crystalline compounds containing the triangular macrocyclic boron derivative [B3L3]3− with the counter cations, triethylammonium, imidazolium, tetraethylammonium, and protonated dabco (dabco = 1,4-diazabicyclo[2,2,2]octane). Within a triangular unit all three chiral L4− ligands have the same hand although the crystal does contain a racemic mixture of macrocycles. In all four compounds, one out of the three counter-cations per macrocycle is bound inside the macrocycle.

Item Type: Journal Article
Publisher: American Chemical Society
Copyright: © 2008 American Chemical Society
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