A Two-Dimensional Layered Heteropolyoxoniobate Based on Cubic Sn(IV)-Containing {Sn<sub>12</sub>Nb<sub>56</sub>O<sub>200</sub>} Cages with Good Proton Conductivity Property

The first example of a Sn(IV)-containing heteropolyoxoniobate K<sub>6</sub>H<sub>18</sub>[Cu(en)<sub>2</sub>]<sub>8</sub>{[Sn(OH)<sub>2</sub>]<sub>12</sub> (HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>}·2en·88H<sub>2</sub>O (<b>1</b>) is built from nanoscale high-nuclearity cubic {[Sn(OH)<sub>2</sub>]<sub>12</sub>(HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>} cluster and [Cu(en)<sub>2</sub>]<sup>2+</sup> complexes. The cubic {[Sn(OH)<sub>2</sub>]<sub>12</sub>(HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>} cage is composed of eight {Nb<sub>7</sub>O<sub>22</sub>} clusters and 12 SnO<sub>6</sub> octahedrons. The eight {Nb<sub>7</sub>O<sub>22</sub>} fragments are situated at the vertices of the cubic cage, while the 12 SnO<sub>6</sub> octahedrons are positioned along the edges of the cubic cage. The [Cu(en)<sub>2</sub>]<sup>2+</sup> complexes link the {[Sn(OH)<sub>2</sub>]<sub>12</sub>(HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>} clusters into two-dimensional (2D) (4,4) grid-like layers. The N-H···O hydrogen bonds between the [Cu(en)<sub>2</sub>]<sup>2+</sup> complexes and the {[Sn(OH)<sub>2</sub>]<sub>12</sub>(HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>} clusters link the layers to form a 3D supramolecular structure. Compound <b>1</b> exhibits a good proton conductivity of 3.1 × 10<sup>-2</sup> S cm<sup>-1</sup> at 85 °C and 98% relative humidity.

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Publication Details

Journal
Inorganic Chemistry
Published
2024-12-13
DOI
https://doi.org/10.1021/acs.inorgchem.4c04197
Citations
5
Primary Topic
Polyoxometalates: Synthesis and Applications
Type
article
Field-Weighted Citation Impact
0.59

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article

A Two-Dimensional Layered Heteropolyoxoniobate Based on Cubic Sn(IV)-Containing {Sn12Nb56O200} Cages with Good Proton Conductivity Property

Yan‐Qiong Sun, Ping‐Xin Wu, Shou‐Tian Zheng, Yu-Jin Lin
5 citations
Inorganic Chemistry
Polyoxometalates: Synthesis and Applications
0.59
article

A Two-Dimensional Layered Heteropolyoxoniobate Based on Cubic Sn(IV)-Containing {Sn12Nb56O200} Cages with Good Proton Conductivity Property

Yan‐Qiong Sun, Ping‐Xin Wu, Shou‐Tian Zheng, Yu-Jin Lin
article en
5 citations

Abstract

The first example of a Sn(IV)-containing heteropolyoxoniobate K<sub>6</sub>H<sub>18</sub>[Cu(en)<sub>2</sub>]<sub>8</sub>{[Sn(OH)<sub>2</sub>]<sub>12</sub> (HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>}·2en·88H<sub>2</sub>O (<b>1</b>) is built from nanoscale high-nuclearity cubic {[Sn(OH)<sub>2</sub>]<sub>12</sub>(HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>} cluster and [Cu(en)<sub>2</sub>]<sup>2+</sup> complexes. The cubic {[Sn(OH)<sub>2</sub>]<sub>12</sub>(HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>} cage is composed of eight {Nb<sub>7</sub>O<sub>22</sub>} clusters and 12 SnO<sub>6</sub> octahedrons. The eight {Nb<sub>7</sub>O<sub>22</sub>} fragments are situated at the vertices of the cubic cage, while the 12 SnO<sub>6</sub> octahedrons are positioned along the edges of the cubic cage. The [Cu(en)<sub>2</sub>]<sup>2+</sup> complexes link the {[Sn(OH)<sub>2</sub>]<sub>12</sub>(HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>} clusters into two-dimensional (2D) (4,4) grid-like layers. The N-H···O hydrogen bonds between the [Cu(en)<sub>2</sub>]<sup>2+</sup> complexes and the {[Sn(OH)<sub>2</sub>]<sub>12</sub>(HNb<sub>7</sub>O<sub>22</sub>)<sub>8</sub>} clusters link the layers to form a 3D supramolecular structure. Compound <b>1</b> exhibits a good proton conductivity of 3.1 × 10<sup>-2</sup> S cm<sup>-1</sup> at 85 °C and 98% relative humidity.

Inorganic ChemistryVol. 63(52)
Fuzhou University (CN)
National Natural Science Foundation of China
Openalex Percentile: Top 32%
Polyoxometalates: Synthesis and Applications
0.59
DOISourceOpenAlex
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A Two-Dimensional Layered Heteropolyoxoniobate Based on Cubic Sn(IV)-Containing {Sn<sub>12</sub>Nb<sub>56</sub>O<sub>200</sub>} Cages with Good Proton Conductivity Property — Yan‐Qiong Sun, Ping‐Xin Wu, et al. · Inorganic Chemistry (2024) | TGRS Research Map | TGRS