2011
DOI: 10.1039/c1cc15823f
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Unusual visible luminescence of aluminium polyoxocations in aqueous solution

Abstract: Identification of aluminium polyoxocations, MO(4)Al(12)(OH)(24)(H(2)O)(12)(7/8+) (M = Al, Ga and Ge) (K-MAl(12)) and Al(30)O(8)(OH)(56)(H(2)O)(26)(18+) (Al(30)), by their luminescence is reported. The fluorescence behavior of K-Al(13) has been found to differ with different metal ions and anions, implying a new discovery of a potential ion sensor.

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Cited by 7 publications
(4 citation statements)
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“…As is shown in Fig. 2, no peak is observed in the UVevis spectrum ranging from 330 to 700 nm for aniline, MWCNT, and anilinee8 wt‰ MWCNTs mixture, however, new absorption peaks at about 350, 452, 518, and 559 nm are detected in anilineeMWCNT complexes, suggesting that anilineeMWCNT complexes have been successfully formed during the reflux process [23,24]. At elevated temperature, such as 184 C, MWCNT and aniline are believed to form a charge-transfer complex in its ground state because MWCNT is a good electron acceptor, whereas aniline is a fairly good electron donor, as evidenced by the appearance of the new absorptions.…”
Section: Resultsmentioning
confidence: 77%
“…As is shown in Fig. 2, no peak is observed in the UVevis spectrum ranging from 330 to 700 nm for aniline, MWCNT, and anilinee8 wt‰ MWCNTs mixture, however, new absorption peaks at about 350, 452, 518, and 559 nm are detected in anilineeMWCNT complexes, suggesting that anilineeMWCNT complexes have been successfully formed during the reflux process [23,24]. At elevated temperature, such as 184 C, MWCNT and aniline are believed to form a charge-transfer complex in its ground state because MWCNT is a good electron acceptor, whereas aniline is a fairly good electron donor, as evidenced by the appearance of the new absorptions.…”
Section: Resultsmentioning
confidence: 77%
“…Reaction dynamics of the larger decaniobate ion [Nb 10 O 28 ] 6− revealed the possible mechanism for the base-promoted dissociation of the decaniobate ion, [18] 6− with hydrogen peroxide was revealed, and the results showed the terminal niobium-bound oxygen atoms can be easily replaced by peroxy groups, implying the possible use of niobates as water-splitting catalysts [22]. Photoluminescence of amorphous niobium oxide was reported [23], and the unique visible luminescence of aluminum polyoxocations was found recently [24]. These results motivated us to explore the photoluminescence properties and electrocatalytic behaviour of decomposing water of these PONbs.…”
Section: Introductionmentioning
confidence: 89%
“…4 представлены спектры флуоресценции для интеркалирующих растворов и Al 30 . В отличие от спек-тра раствора Al 30 , в котором, как и в работе [12], наблю-даются интенсивные пики при 280 и 560 нм, в спектре раствора Al 13 наблюдается лишь пик очень малой интен-сивности при 280 нм. Тем не менее, это свидетельствует о том, что и в растворе, не подвергнутом гипертермальной обработке, содержатся в очень малых концентрациях поликатионы Al 30 .…”
Section: обсуждение результатовunclassified
“…В частности, наиболее популярна интеркаляция ионов [Аl 13 Несмотря на то, что гидролиз солей алюминия яв-лялся объектом исследования на протяжении многих десятилетий, эти исследования продолжаются и в на-стоящее время с целью обнаружения с помощью сов-ременных физических методов (масс спектрометрия с ионизацией электрораспылением [5][6][7][8] 3 , служащих связующим мостиком между А1 13 [9] (рис.1). Важно отметить, что согласно результатам [12] комплексы Al 30 , в отличие от А1 13 , активны в спектрах флуоресценции: наблюдаются интенсивные полосы в ближних ИК и УФ областях спек-тра. Это дает уникальную возможность контролировать эффективность интеркаляции именно Al 30 в синтезе пил-ларных алюмосиликатов.…”
Section: Introductionunclassified