Open AccessIsolation of the Elusive Heptavanadate Anion with Trisalkoxide Ligands
Author(s) -
Leticia Fernández-Navarro,
Aitor Nunes-Collado,
Beñat Artetxe,
Estibaliz RuizBilbao,
Leire San Felices,
Santiago Reinoso,
Ana San José Wéry,
Juan M. GutiérrezZorrilla
Publication year - 2021
Publication title -
inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 233
eISSN - 1520-510X
pISSN - 0020-1669
DOI - 10.1021/acs.inorgchem.1c00448
Subject(s) - chemistry , isolation (microbiology) , ion , combinatorial chemistry , stereochemistry , organic chemistry , microbiology and biotechnology , biology
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.