STEFAŃCZYK, Olaf; RAMS, Michał; MAJCHER, Anna M.; MATHONIÈRE, Corine; SIEKLUCKA, Barbara

doi:10.1021/ic500271f

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STEFAŃCZYK, Olaf
Faculty of Chemistry
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

RAMS, Michał
M. Smoluchowski Institute of Physics

MAJCHER, Anna M.
M. Smoluchowski Institute of Physics

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Inorganic Chemistry. 2014, vol. 53, n° 7, p. 3874-3879

American Chemical Society

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Trinuclear chiral (LH)2L2Cu3 (LH = 1,3-diamino-2-propanol, bdapH) assemblies linked by octacyanidometalate(IV) form isostructural one-dimensional (1D) chains consisting of right- and left-handed helixes arranged in an alternate manner: [(bdapH)2(bdap)2Cu(II)3][M(IV)(CN)8]*H2O (M = Mo 1, W 2). Each chain displays helicity with a long pitch around 17.2 Å. The direction of the helix rotation is strictly connected with the conformation of the (LH)2L2Cu3 unit. Right-handed helixes are based on Δ-S,S-(LH)2L2Cu3, whereas left-handed ones contain Λ-R,R-(LH)2L2Cu3 units. Magnetic studies reveal antiferromagnetic interactions through alkoxo-bridges inside trinuclear Cu(II) nodes leading to an ST = 1/2 ground state for both assemblies.< Leer menos

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Chiral (LH)2L2Cu3 trinuclear paramagnetic nodes in octacyanidometalate-bridged helical chains.

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