Phase formation in the Ni2+-WO 4 2− -H+-H2O system (Z = 1.00). Crystal structure and properties of sodium heteropolyhexatunsten nickelate(2+) Na4[Ni(OH)6W6O18]·16H2O

Rozantsev, G. M.; Radio, S. V.; Gumerova, Nadiia I.; Baumer, V. N.; Шишкин, O. B.

doi:10.1007/s10947-009-0041-z

Cited by 16 publications

(11 citation statements)

References 9 publications

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“…The Preyssler POT (Figure 1A) (NH 4 ) 14 [NaP 5 W 30 O 110 ]·30H 2 O (Jeannin et al, 2007); heteropolymetalates with Dawson structure (Figure 1B): K 6 [P 2 W 18 O 62 ]·14H 2 O (Contant et al, 2007), (NH 4 ) 6 [P 2 Mo 18 O 62 ]·12H 2 O (Briand et al, 2002), [(C 16 H 36 ) 4 N] 4 [P 4 Mo 18 O 61 ] (Kortz and Pope, 1994), (CH 6 N 3 ) 6 [As 2 Mo 18 O 62 ]·9H 2 O (Ichida and Sasaki, 1983), [(CH 3 ) 4 N] 4 [S 2 Mo 18 O 62 ] (Hori and Himeno, 1987), Na 12 [P 2 W 15 O 56 ]·25H 2 O (Contant et al, 2007), [N(CH 3 ) 4 ] 6 [H 3 P 2 W 15 V 3 O 62 ]·6H 2 O (Finke et al, 1986), K 6 [As 2 W 18 O 62 ]·14H 2 O (Bi et al, 2000), Na 7 [AsW 18 O 60 ]·16H 2 O (Jeannin and Martin-Frere, 1979); heteropolymetalates with Keggin-based structures (Figures 1C-E): Na 3 [PW 12 O 40 ]·12H 2 O (Phillips, 1950), (NH 4 ) 5 [H 2 PCoW 11 O 40 ] (Komura et al, 1976), K 6 H 2 [CoTiW 11 O 40 ]·13H 2 O (Kraus et al, 2005), K 8 [SiW 10 O 36 ]·10H 2 O (Téazéa et al, 2007), Na 9 [SbW 9 O 33 ]·19.5H 2 O (Tourné et al, 1973); Na 9 [AsW 9 O 33 ]·19.5H 2 O (Tourné et al, 1973), K 14 [As 2 W 19 O 67 (H 2 O)] (Kortz et al, 2001); K 9 (C 2 H 8 N) 5 [H 10 Se 2 W 29 O 103 ]·30H 2 O (Gao et al, 2013); isopolymetalates (Figures 1F,G): Na 10 [W 12 O 40 (OH) 2 ]·20H 2 O (Evans and Rollins, 1976), Na 12 [H 4 W 22 O 74 ]·31H 2 O (Miras et al, 2008), [(C 4 H 9 ) 4 N] 2 [Mo 6 O 19 ] (Klemperer, 2007), [(C 4 H 9 ) 4 N] 4 [α-Mo 8 O 26 ] (Klemperer, 2007), K 4 Na 2 [V 10 O 28 ]·10H 2 O (Lee and Joo, 2003), K 4 [V 4 O 8 (L-tart) 2 ]·8H 2 O, tart = C 4 H 2

O_{6}^{4 -}

(Schwendt et al, 2007), K 4 [V 4 O 8 (D-tart) 2 ]·8H 2 O, tart = C 4 H 2

O_{6}^{4 -}

(Schwendt et al, 2007); heteropolymetalates with Anderson structure (Figure 1I) : Na 6 [TeW 6 O 24 ]·22H 2 O (Schmidt et al, 1986), Na 4 [Ni(OH) 6 W 6 O 18 ]·16H 2 O (Rozantsev et al, 2009), Na 4 [Ni(OH) 6 Mo 6 O 18 ]·16H 2 O (Gumerova et al, 2015), Na 2 [N(CH 3 ) 4 ] 2 [Ni(OH) 3 W 6 O 18 (OCH 2 ) 3 CCH 2 OH]·9H 2 O (Gumerova et al, 2016) were synthesized according to procedures published elsewhere. Table 1 lists the POMs tested in this study together with notation of their abbreviation.…”

Section: Methodsmentioning

confidence: 99%

“…(A) Preyssler structure [NaP 5 W 30 O 110 ] 14− (Jeannin et al, 2007); (B) Dawson structure [ X 2 M 18 O 62 ] n− (X = P 5+ , As 5+ , S 6+ ; M = Mo, W, V) (e.g., Contant et al, 2007); (C) α-Keggin structure [PW 12 O 40 ] 3− (Phillips, 1950); (D) mono-substituted Keggin structure [H 2 XYM 11 O 40 ] n− [X = Co 2+ , Y = Ti 4+ , n = 6 (Kraus et al, 2005); X = P 5+ , Y = Co 2+ , n = 5 (Komura et al, 1976)]; (E) di-lacunary γ-Keggin structure [ SiW 10 O 36 ] 8− (Téazéa et al, 2007); (F) tri-lacunary α-Keggin structure [ XW 9 O 33 ] 9− (X = Sb 5+ , As 5+ ) (Tourné et al, 1973); (G) octomolybdate [ α -Mo 8 O 26 ] 4− (Klemperer, 2007); (H) paratungstate [W 12 O 40 (OH) 2 ] 10− (Evans and Rollins, 1976); (I) Anderson structure [ XM 6 O 24 H k ] n− (X = Te 6+ , M = W, k = 0, n = 6 Schmidt et al, 1986; X = Ni 2+ , M = Mo, W, k = 6, n = 4 (Rozantsev et al, 2009; Gumerova et al, 2015). Color code: all addenda MO 6 octahedra, green polyhedra; heteroatom X, yellow spheres or polyhedra; Na in (A) , blue sphere; (C) , black spheres; CoO 6 and TiO 6 in (D) , pink polyhedra.…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial Activity of Polyoxometalates Against Moraxella catarrhalis

et al. 2018

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The antibacterial activity of 29 different polyoxometalates (POMs) against Moraxella catarrhalis was investigated by determination of the minimum inhibitory concentration (MIC). The Preyssler type polyoxotungstate (POT) [NaP5W30O110]14− demonstrates the highest activity against M. catarrhalis (MIC = 1 μg/ml) among all tested POMs. Moreover, we show that the Dawson type based anions, [P2W18O62]6−, [(P2O7)Mo18O54]4−, [As2Mo18O62]6−, [H3P2W15V3O62]6−, and [AsW18O60]7− are selective on M. catarrhalis (MIC range of 2-8 μg/ml). Among the six tested Keggin type based POTs ([PW12O40]3−, [H2PCoW11O40]5−, [H2CoTiW11O40]6−, [SiW10O36]8−, [SbW9O33]9−, [AsW9O33]9−), only the mono-substituted [H2CoTiW11O40]6− showed MIC value comparable to those of the Dawson type group. Polyoxovanadates (POVs) and Anderson type POMs were inactive against M. catarrhalis within the tested concentration range (1-256 μg/ml). Four Dawson type POMs [P2W18O62]6−, [(P2O7)Mo18O54]4−, [As2Mo18O62]6−, [H3P2W15V3O62]6− and the Preyssler POT [NaP5W30O110]14− showed promising antibacterial activity against M. catarrhalis (MICs < 8 μg/ml) and were therefore tested against three additional bacteria, namely S. aureus, E. faecalis, and E. coli. The most potent antibacterial agent was [NaP5W30O110]14−, exhibiting the lowest MIC values of 16 μg/ml against S. aureus and 8 μg/ml against E. faecalis. The three most active compounds ([NaP5W30O110]14−, [P2W18O62]6−, and [H3P2W15V3O62]6−) show bacteriostatic effects in killing kinetics study against M. catarrhalis. We demonstrate, that POM activity is mainly depending on composition, shape, and size, but in the case of medium-size POTs (charge is more than −12 and number of addenda atoms is not being higher than 22) its activity correlates with the total net charge.

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O_{6}^{4 -}

(Schwendt et al, 2007), K 4 [V 4 O 8 (D-tart) 2 ]·8H 2 O, tart = C 4 H 2

O_{6}^{4 -}

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antibacterial Activity of Polyoxometalates Against Moraxella catarrhalis

et al. 2018

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“…All first-row transition Table 1) to act as a heteroatom in the XMo 6 system. The XW 6 system exist with Mn II/IV [50] and Ni II [51][52][53][54] forming the B-type Anderson-Evans POM, incorporating six hydrogen atoms which is rather unusual when W act as addenda atoms. Interestingly, given the large number of hybrid structures in the Mn III Mo 6 system (section 5.2), no inorganic crystal structure exist although synthesis and spectroscopic characterization has been reported [55].…”

Section: The Inorganic Structurementioning

confidence: 99%

The Anderson–Evans polyoxometalate: From inorganic building blocks via hybrid organic–inorganic structures to tomorrows “Bio-POM”

Blazevic

Rompel

2016

Coordination Chemistry Reviews

276

200

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“…1) свидетельствует о том, что окружение атомов вольфрама атомами кислорода в анионе соли не является тетраэдрическим (Td), а в блочном строении соли приближается либо к октаэдрическому (Оh), либо к искаженному октаэдрическому (Р4h, C4v и даже C2v). Данные РФА также подтверждают отсутствие натрия в составе выделенных солей, поскольку при его присутствии в продуктах термолиза будет присутствовать либо дивольфрамат натрия Na2W2O7, либо тетравольфрамат натрия Na2W4O13, как это наблюдалось в [17][18].…”

Section: экспериментальная частьunclassified

“…Из свежеприготовленного раствора при Z = 1,00 синтезирован гептавольфрамат церия Ce2W7O24•20H2O, методом РФА показано, что его термическое разложение при 500 ºС сопровождается кристаллизацией фаз Ce4W9O33 и WO3. Методами химического анализа и ИК-спектроскопии установлено, что из свежеприготовленного раствора при Z = 1, 17…”

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