2026-04-13T06:43:39Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/1518532025-12-04T21:44:46Zcom_2072_1057col_2072_478917col_2072_478933
RECERCAT
author
Borilović, Ivana
author
Roubeau, Olivier
author
Fernández Vidal, Irene
author
Teat, Simon J.
author
Aromí Bedmar, Guillem
2020-03-03T16:31:48Z2020-03-03T16:31:48Z2015-12-022020-03-03T16:31:49Z
Exploring the chemistry of vanadyl ions (VO2+) with bis-β-diketone ligands, in pyridine reactions of vanadyl sulfate with 1,3-bis-(3-oxo-3-(2-hydroxyphenyl)-propionyl)-benzene (H4L1) and 1,3-bis-(3-oxo-3-(2-hydroxyphenyl)-propionyl)-pyridine (H4L2), two novel clusters, [(VIVO)4(H2L1)4(py)4] (1) and [(VVO)4(VIVO)2 (O)4(L2)2(py)6] (2) were prepared and characterized. Due to the conformational flexibility of the ligands, both entities exhibit very peculiar metal topologies and composition, differing significantly from structural patterns established in the related chemistry of divalent 3d metals. Structural analysis also unveils the existence of the most complex metallamacrocycles from this family to date. Studies of the magnetic properties via bulk magnetization measurements and EPR spectroscopy confirmed the existence of uncoupled long-distant S = 1/2 metal centers and the spin ground states S = 2 and S = 1 of the clusters.
cc-by (c) Borilović et al., 2015 http://creativecommons.org/licenses/by/3.0/es info:eu-repo/semantics/openAccess
Propietats magnètiques
Ions
Vanadi
Magnetic properties
Ions
Vanadium
Novel Topologies in Vanadium-bis-β-Diketone Chemistry: A [V4] and a [V6] Metallacyclophane
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion