Synthesis and Electrochemical Properties of ((CH3)2NH2)7[P2W17NbO62]

A. A. Shmakova; A. L. Gushchin; P. A. Abramov; M. N. Sokolov

doi:10.1134/S0022476619060106

Synthesis and Electrochemical Properties of ((CH₃)₂NH₂)₇[P₂W₁₇NbO₆₂]

A. A. Shmakova, A. L. Gushchin, P. A. Abramov, M. N. Sokolov

Результат исследования: Научные публикации в периодических изданиях › статья

Аннотация

The bis(oxalate) complex of niobium (NH₄)[NbO(C₂O₄)₂(H₂O)₂]·3H₂O can be used as a source of niobium to incorporate the {NbO}³⁺ group into a cavity of the monolacunary Dawson-type [α₂-P₂W₁₇O₆₁]¹⁰⁻ anion. The product is isolated from the reaction mixture as dimethylammonium salt (Me₂NH₂)₇[α₂-P₂W₁₇NbO₆₂]·3H₂O (1) and characterized by single crystal XRD, IR and Raman spectroscopy, and elemental analysis. (NBu₄)₆(Me₂NH₂)[α₂-P₂W₁₇NbO₆₂] (2) is obtained by adding Bu₄NBr to an aqueous solution of 1. The comparison of the electrochemical properties of complex 2 and (NBu₄)₆[P₂W₁₈O₆₂] shows that the incorporation of niobium atom hinders the anion reduction.

Язык оригинала	английский
Страницы (с-по)	961-966
Число страниц	6
Журнал	Journal of Structural Chemistry
Том	60
Номер выпуска	6
DOI	https://doi.org/10.1134/S0022476619060106
Состояние	Опубликовано - 1 июн 2019

Доступ к документу

10.1134/S0022476619060106

Link to publication in Scopus

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title = "Synthesis and Electrochemical Properties of ((CH3)2NH2)7[P2W17NbO62]",

abstract = "The bis(oxalate) complex of niobium (NH4)[NbO(C2O4)2(H2O)2]·3H2O can be used as a source of niobium to incorporate the {NbO}3+ group into a cavity of the monolacunary Dawson-type [α2-P2W17O61]10− anion. The product is isolated from the reaction mixture as dimethylammonium salt (Me2NH2)7[α2-P2W17NbO62]·3H2O (1) and characterized by single crystal XRD, IR and Raman spectroscopy, and elemental analysis. (NBu4)6(Me2NH2)[α2-P2W17NbO62] (2) is obtained by adding Bu4NBr to an aqueous solution of 1. The comparison of the electrochemical properties of complex 2 and (NBu4)6[P2W18O62] shows that the incorporation of niobium atom hinders the anion reduction.",

keywords = "cyclic voltammetric patterns, Dawson anion, niobium, NMR, POLYOXOMETALATE, CATALYST",

author = "Shmakova, {A. A.} and Gushchin, {A. L.} and Abramov, {P. A.} and Sokolov, {M. N.}",

year = "2019",

month = jun,

day = "1",

doi = "10.1134/S0022476619060106",

language = "English",

volume = "60",

pages = "961--966",

journal = "Journal of Structural Chemistry",

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TY - JOUR

T1 - Synthesis and Electrochemical Properties of ((CH3)2NH2)7[P2W17NbO62]

AU - Shmakova, A. A.

AU - Gushchin, A. L.

AU - Abramov, P. A.

AU - Sokolov, M. N.

PY - 2019/6/1

Y1 - 2019/6/1

N2 - The bis(oxalate) complex of niobium (NH4)[NbO(C2O4)2(H2O)2]·3H2O can be used as a source of niobium to incorporate the {NbO}3+ group into a cavity of the monolacunary Dawson-type [α2-P2W17O61]10− anion. The product is isolated from the reaction mixture as dimethylammonium salt (Me2NH2)7[α2-P2W17NbO62]·3H2O (1) and characterized by single crystal XRD, IR and Raman spectroscopy, and elemental analysis. (NBu4)6(Me2NH2)[α2-P2W17NbO62] (2) is obtained by adding Bu4NBr to an aqueous solution of 1. The comparison of the electrochemical properties of complex 2 and (NBu4)6[P2W18O62] shows that the incorporation of niobium atom hinders the anion reduction.

AB - The bis(oxalate) complex of niobium (NH4)[NbO(C2O4)2(H2O)2]·3H2O can be used as a source of niobium to incorporate the {NbO}3+ group into a cavity of the monolacunary Dawson-type [α2-P2W17O61]10− anion. The product is isolated from the reaction mixture as dimethylammonium salt (Me2NH2)7[α2-P2W17NbO62]·3H2O (1) and characterized by single crystal XRD, IR and Raman spectroscopy, and elemental analysis. (NBu4)6(Me2NH2)[α2-P2W17NbO62] (2) is obtained by adding Bu4NBr to an aqueous solution of 1. The comparison of the electrochemical properties of complex 2 and (NBu4)6[P2W18O62] shows that the incorporation of niobium atom hinders the anion reduction.

KW - cyclic voltammetric patterns

KW - Dawson anion

KW - niobium

KW - NMR

KW - POLYOXOMETALATE

KW - CATALYST

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M3 - Article

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