Structure and Properties of H8(PW11TiO39)2O Heteropoly Acid Full article
| Journal |
Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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| Output data | Year: 2009, Volume: 50, Number: 4, Pages: 618-627 Pages count : 10 DOI: 10.1007/s10947-009-0097-9 | ||||
| Tags | Heteropoly acids, NMR, Titanium complexes | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Foundation for Basic Research | 04-03-32113 |
Abstract:
Heteropoly acid (HPA) H8(PW11TiO39)2O·xH2O (I) is synthesized by three different ways and studied by chemical analysis, potentiometric titration, mass-spectrometry, IR, 31P, 183W, and 17O NMR spectroscopy, thermogravimetry, and transmission electron microscopy. Anion I consists of two subparticles of the Keggin structure bridged by Ti-O-Ti. The dimeric anion exists in HPA aqueous solutions at [I] > 0.02 M. At pH > 0.6 it splits to a [PW11TiO40]5− monomer stable up to pH ∼ 6. When heated (150–400)°C, I splits into H3PW12O40 and, apparently, H3PW10Ti2O38 without phase separation. Thermolysis products are soluble and when dissolved in water turn again into I. Complete decomposition of I to oxides occurs at ∼450°C.
Cite:
Maksimov G.M.
, Maksimovskaya R.I.
, Kholdeeva O.A.
, Fedotov M.A.
, Zaikovskii V.I.
, Vasilʹev V.G.
, Arzumanov S.S.
Structure and Properties of H8(PW11TiO39)2O Heteropoly Acid
Journal of Structural Chemistry. 2009. V.50. N4. P.618-627. DOI: 10.1007/s10947-009-0097-9 WOS Scopus РИНЦ ANCAN OpenAlex
Structure and Properties of H8(PW11TiO39)2O Heteropoly Acid
Journal of Structural Chemistry. 2009. V.50. N4. P.618-627. DOI: 10.1007/s10947-009-0097-9 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Максимов Г.М.
, Максимовская Р.И.
, Холдеева О.А.
, Федотов М.А.
, Зайковский В.И.
, Васильев В.Г.
, Арзуманов С.С.
Структура и свойства гетерополикислоты H8(PW11TiO39)2O
Журнал структурной химии. 2009. Т.50. №4. С.648-657. RSCI РИНЦ
Структура и свойства гетерополикислоты H8(PW11TiO39)2O
Журнал структурной химии. 2009. Т.50. №4. С.648-657. RSCI РИНЦ
Dates:
| Submitted: | Jul 15, 2008 |
| Published print: | Aug 1, 2009 |
| Published online: | Sep 10, 2009 |
Identifiers:
| Web of science: | WOS:000269957400005 |
| Scopus: | 2-s2.0-70350660961 |
| Elibrary: | 15307899 |
| Chemical Abstracts: | 2009:1140778 |
| Chemical Abstracts (print): | 152:540295 |
| OpenAlex: | W2467739457 |