Cylindrical HP<sup>III</sup>-Sb<sup>III</sup>-Templated Five-Layer Polyoxotungstate with Conspicuous Photochromism Triggered by UV or Visible Light

The heteroanion (HA) component plays an important role in the templating of heteropolyoxometalate (HPA) structures, but polyoxometalates (POMs) formed from two different templates are rarely reported. Herein, we present a five-layer POM [H<sub>2</sub>N(CH<sub>3</sub>)<sub>2</sub>]<sub>14</sub>{[(HPO<sub>3</sub>)<sub>4</sub>W<sub>6</sub>O<sub>10</sub>][HPSbW<sub>15</sub>O<sub>54</sub>]<sub>2</sub>}·16H<sub>2</sub>O (<b>1</b>) prepared by two kinds of different HA templates. The multilayer heteropolyanion {[(HPO<sub>3</sub>)<sub>4</sub>W<sub>6</sub>O<sub>10</sub>][HPSbW<sub>15</sub>O<sub>54</sub>]<sub>2</sub>}<sup>14-</sup> in <b>1</b> consists of two trivacant diheteroatom-templated ([HPO<sub>3</sub>]<sup>2-</sup> and [SbO<sub>3</sub>]<sup>3-</sup>) [HPSbW<sub>15</sub>O<sub>54</sub>]<sup>11-</sup> subunits linked by one unusual [(HPO<sub>3</sub>)<sub>4</sub>W<sub>6</sub>O<sub>10</sub>]<sup>8+</sup> subcluster via twelve corner-sharing oxygen atoms. Compound <b>1</b> was systematically characterized by IR, UV, PXRD, TGA, XPS, and Raman spectra. Compound <b>1</b> exhibits good photochromism under UV irradiation with a half-life (<i>t</i><sub>1/2</sub>) of 42.5 s, and it also exhibits noteworthy photochromism under visible light irradiation with a half-life (<i>t</i><sub>1/2</sub>) of 157.2 s. The possible photochromic mechanism is proposed and verified by the experimental results.

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Publication Details

Journal
Inorganic Chemistry
Published
2024-09-03
DOI
https://doi.org/10.1021/acs.inorgchem.4c02764
Citations
9
Primary Topic
Polyoxometalates: Synthesis and Applications
Type
article
Field-Weighted Citation Impact
1.05

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article

Cylindrical HPIII-SbIII-Templated Five-Layer Polyoxotungstate with Conspicuous Photochromism Triggered by UV or Visible Light

Lin Sun, Lihua Liu, Miao Zhang, Pengtao Ma et al.
9 citations
Inorganic Chemistry
Polyoxometalates: Synthesis and Applications
1.05
article

Cylindrical HPIII-SbIII-Templated Five-Layer Polyoxotungstate with Conspicuous Photochromism Triggered by UV or Visible Light

Lin Sun, Lihua Liu, Miao Zhang, Pengtao Ma, Yunfan Zhang, Mengmeng Hou
article en
9 citations

Abstract

The heteroanion (HA) component plays an important role in the templating of heteropolyoxometalate (HPA) structures, but polyoxometalates (POMs) formed from two different templates are rarely reported. Herein, we present a five-layer POM [H<sub>2</sub>N(CH<sub>3</sub>)<sub>2</sub>]<sub>14</sub>{[(HPO<sub>3</sub>)<sub>4</sub>W<sub>6</sub>O<sub>10</sub>][HPSbW<sub>15</sub>O<sub>54</sub>]<sub>2</sub>}·16H<sub>2</sub>O (<b>1</b>) prepared by two kinds of different HA templates. The multilayer heteropolyanion {[(HPO<sub>3</sub>)<sub>4</sub>W<sub>6</sub>O<sub>10</sub>][HPSbW<sub>15</sub>O<sub>54</sub>]<sub>2</sub>}<sup>14-</sup> in <b>1</b> consists of two trivacant diheteroatom-templated ([HPO<sub>3</sub>]<sup>2-</sup> and [SbO<sub>3</sub>]<sup>3-</sup>) [HPSbW<sub>15</sub>O<sub>54</sub>]<sup>11-</sup> subunits linked by one unusual [(HPO<sub>3</sub>)<sub>4</sub>W<sub>6</sub>O<sub>10</sub>]<sup>8+</sup> subcluster via twelve corner-sharing oxygen atoms. Compound <b>1</b> was systematically characterized by IR, UV, PXRD, TGA, XPS, and Raman spectra. Compound <b>1</b> exhibits good photochromism under UV irradiation with a half-life (<i>t</i><sub>1/2</sub>) of 42.5 s, and it also exhibits noteworthy photochromism under visible light irradiation with a half-life (<i>t</i><sub>1/2</sub>) of 157.2 s. The possible photochromic mechanism is proposed and verified by the experimental results.

Inorganic ChemistryVol. 63(37)
Henan University (CN)
National Natural Science Foundation of China
Openalex Percentile: Top 21%
Polyoxometalates: Synthesis and Applications
1.05
DOISourceOpenAlex
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Cylindrical HP<sup>III</sup>-Sb<sup>III</sup>-Templated Five-Layer Polyoxotungstate with Conspicuous Photochromism Triggered by UV or Visible Light — Lin Sun, Lihua Liu, et al. · Inorganic Chemistry (2024) | TGRS Research Map | TGRS