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INVESTIGATION OF THE CATALYTIC ACTIVITY OF HYBRID DECAVANADATE MATERIALS.

Authors :: DEAK, Noemi
IDBOUMLIK, Meryem
SORAN, Albert
LACHKAR, Mohammed
EL BALI, Brahim
NEMES, Gabriela
Source :: Studia Universitatis Babes-Bolyai, Chemia; Sep2024, Vol. 69 Issue 3, p7-23, 17p
Publication Year :: 2024
Abstract: Three decavanadate (V<subscript>10</subscript>O<subscript>28</subscript>)<superscript>6-</superscript> containing compounds were used to test their catalytic activity in the sulfoxidation reaction of diphenyl sulfide using environmentally friendly conditions (low temperature, non-toxic solvent). The compounds of interest for our study, (NH<subscript>4</subscript>)<subscript>2</subscript>(H<subscript>2</subscript>en)<subscript>2</subscript>{V<subscript>10</subscript>O<subscript>28</subscript>}·4H<subscript>2</subscript>O, (H<subscript>2</subscript>en)<subscript>3</subscript>{V<subscript>10</subscript>O<subscript>28</subscript>}·6H<subscript>2</subscript>O and {Li<subscript>2</subscript>(H<subscript>2</subscript>O)<subscript>10</subscript>}(V<subscript>10</subscript>O<subscript>28</subscript>)(NH<subscript>4</subscript>)<subscript>4</subscript>, were evaluated, showing good activity in sulfoxidation reaction and leading to complete conversion of the sulfide even after three runs. The tetraammonium decaaqualithium decavanadate, with the formula {Li<subscript>2</subscript>(H<subscript>2</subscript>O)<subscript>10</subscript>}(V<subscript>10</subscript>O<subscript>28</subscript>)(NH<subscript>4</subscript>)<subscript>4</subscript> was obtained through a modified literature method and its structure re-determined and investigated, giving similar results as previously described and confirming the structure of the used material. [ABSTRACT FROM AUTHOR]