Co-II/Zn-II-(L-Tyrosine) Magnetic Metal-Organic Frameworks
authors Zhou, B; Silva, NJO; Shi, FN; Palacio, F; Mafra, L; Rocha, J
nationality International
journal EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
author keywords Amino acids; Cobalt; Zinc; Metal-organic frameworks; Magnetic properties
keywords AROMATIC-AMINO-ACIDS; SOLID-STATE; COMPLEXES; CHEMISTRY; HYDROGEN; TYROSINE; POLYMER; STORAGE
abstract Three chiral coordination polymers assembled from L-tyrosine (L-tyr) and cobalt, cobalt/zinc and zinc salts, with a new three-dimensional (3D) structure and formulated as [M(L-tyr)]n (M = Co, Co/Zn, Zn) have been prepared by mild hydrothermal synthesis. These three compounds are isostructural, crystallize with monoclinic symmetry in the C2 space group and possess four crystallographically unique metal sites in tetrahedral (two) and octahedral (two) coordination environments resulting in two slightly distinct edge-sharing metal dimers with L-tyr linking the metal atoms in pillars. These features result in a dense framework. The study of the magnetic properties of the cobalt-bearing solid reveals a ferromagnetic exchange interaction within the Co2+ dimers. The racemic compound of dl-tyrosine and cobalt was also synthesized and its structure characterized.
publisher WILEY-V C H VERLAG GMBH
issn 1434-1948
year published 2012
issue 32
beginning page 5259
ending page 5268
digital object identifier (doi) 10.1002/ejic.201200169
web of science category Chemistry, Inorganic & Nuclear
subject category Chemistry
unique article identifier WOS:000310687300018
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journal impact factor 2.507
5 year journal impact factor 2.381
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