Isolation of the Elusive Heptavanadate Anion with Trisalkoxide Ligands

[Image: see text] The unprecedented heptavanadate cluster has been isolated from reactions between trisalkoxide ligands and vanadate in water at pH = 2 as a series of alkylammonium [H(x)V(7)O(18)(H(2)O)((OCH(2))(3)CR)]((4–x)-) salts (1–3, R = CH(2)OH; 4, R = CH(3)). Their structures have been determ...

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Detalles Bibliográficos
Autores principales: Fernández-Navarro, Leticia, Nunes-Collado, Aitor, Artetxe, Beñat, Ruiz-Bilbao, Estibaliz, San Felices, Leire, Reinoso, Santiago, San José Wéry, Ana, Gutiérrez-Zorrilla, Juan M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2021
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9157487/
https://www.ncbi.nlm.nih.gov/pubmed/33818060
http://dx.doi.org/10.1021/acs.inorgchem.1c00448
Descripción
Sumario:[Image: see text] The unprecedented heptavanadate cluster has been isolated from reactions between trisalkoxide ligands and vanadate in water at pH = 2 as a series of alkylammonium [H(x)V(7)O(18)(H(2)O)((OCH(2))(3)CR)]((4–x)-) salts (1–3, R = CH(2)OH; 4, R = CH(3)). Their structures have been determined and the partial stability of 4 in water assessed by a combination of multinuclear NMR spectroscopy and ESI-MS. The heptavanadate unit reported herein could represent an intermediate species in the formation of decavanadate that is blocked by attachment of tripodal ligands.

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