Two New Nonaborates with {B<sub>9</sub>} Cluster Open-Frameworks and Short Cutoff Edges
Two new nonaborates, Na<sub>2</sub>Ba<sub>0.5</sub>[B<sub>9</sub>O<sub>15</sub>]·H<sub>2</sub>O (<b>1</b>) and Na<sub>4</sub>Ca<sub>1.5</sub>[B<sub>9</sub>O<sub>16</sub>(OH)<sub...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/16/5279 |
| _version_ | 1797408646775177216 |
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| author | Chong-An Chen Guo-Yu Yang |
| author_facet | Chong-An Chen Guo-Yu Yang |
| author_sort | Chong-An Chen |
| collection | DOAJ |
| description | Two new nonaborates, Na<sub>2</sub>Ba<sub>0.5</sub>[B<sub>9</sub>O<sub>15</sub>]·H<sub>2</sub>O (<b>1</b>) and Na<sub>4</sub>Ca<sub>1.5</sub>[B<sub>9</sub>O<sub>16</sub>(OH)<sub>2</sub>] (<b>2</b>), have been solvothermally made with mixed alkali and alkaline-earth metal cationic templates. <b>1</b> and <b>2</b> are constructed by two different types of nonaborate clusters. In <b>1</b>, the [B<sub>9</sub>O<sub>19</sub>]<sup>11−</sup> cluster is composed of three corner-sharing [B<sub>3</sub>O<sub>7</sub>]<sup>5−</sup> clusters, of which two of them interconnect to the 1D B<sub>3</sub>O<sub>7</sub>-based chains and are further bridged to the 3D framework with 7 types of 10-MR channels by another [B<sub>3</sub>O<sub>7</sub>]<sup>5−</sup> bridging cluster. The [B<sub>9</sub>O<sub>18</sub>(OH)<sub>2</sub>]<sup>11−</sup> cluster in <b>2</b> is made of four BO<sub>4</sub>-sharing [B<sub>3</sub>O<sub>8</sub>]<sup>7−</sup> clusters. As a 4-connected node, the interconnections of [B<sub>9</sub>O<sub>18</sub>(OH)<sub>2</sub>]<sup>11−</sup> construct the unpreceded 2D layer with large 14-MR windows, which are further joined by H-bonds to the 3D supramolecular framework. UV–Vis absorption spectra reveal that both <b>1</b> and <b>2</b> have short cutoff edges below 190 nm, exhibiting bandgaps of 6.31 and 6.39 eV, respectively, indicating their potential applications in deep UV (DUV) regions. |
| first_indexed | 2024-03-09T04:02:15Z |
| format | Article |
| id | doaj.art-2d3d439641574d2cabbd294d0fec9419 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T04:02:15Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-2d3d439641574d2cabbd294d0fec94192023-12-03T14:12:01ZengMDPI AGMolecules1420-30492022-08-012716527910.3390/molecules27165279Two New Nonaborates with {B<sub>9</sub>} Cluster Open-Frameworks and Short Cutoff EdgesChong-An Chen0Guo-Yu Yang1MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaMOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaTwo new nonaborates, Na<sub>2</sub>Ba<sub>0.5</sub>[B<sub>9</sub>O<sub>15</sub>]·H<sub>2</sub>O (<b>1</b>) and Na<sub>4</sub>Ca<sub>1.5</sub>[B<sub>9</sub>O<sub>16</sub>(OH)<sub>2</sub>] (<b>2</b>), have been solvothermally made with mixed alkali and alkaline-earth metal cationic templates. <b>1</b> and <b>2</b> are constructed by two different types of nonaborate clusters. In <b>1</b>, the [B<sub>9</sub>O<sub>19</sub>]<sup>11−</sup> cluster is composed of three corner-sharing [B<sub>3</sub>O<sub>7</sub>]<sup>5−</sup> clusters, of which two of them interconnect to the 1D B<sub>3</sub>O<sub>7</sub>-based chains and are further bridged to the 3D framework with 7 types of 10-MR channels by another [B<sub>3</sub>O<sub>7</sub>]<sup>5−</sup> bridging cluster. The [B<sub>9</sub>O<sub>18</sub>(OH)<sub>2</sub>]<sup>11−</sup> cluster in <b>2</b> is made of four BO<sub>4</sub>-sharing [B<sub>3</sub>O<sub>8</sub>]<sup>7−</sup> clusters. As a 4-connected node, the interconnections of [B<sub>9</sub>O<sub>18</sub>(OH)<sub>2</sub>]<sup>11−</sup> construct the unpreceded 2D layer with large 14-MR windows, which are further joined by H-bonds to the 3D supramolecular framework. UV–Vis absorption spectra reveal that both <b>1</b> and <b>2</b> have short cutoff edges below 190 nm, exhibiting bandgaps of 6.31 and 6.39 eV, respectively, indicating their potential applications in deep UV (DUV) regions.https://www.mdpi.com/1420-3049/27/16/5279metal boratesoxoboron clustersolvothermal synthesesshort cutoff edges |
| spellingShingle | Chong-An Chen Guo-Yu Yang Two New Nonaborates with {B<sub>9</sub>} Cluster Open-Frameworks and Short Cutoff Edges Molecules metal borates oxoboron cluster solvothermal syntheses short cutoff edges |
| title | Two New Nonaborates with {B<sub>9</sub>} Cluster Open-Frameworks and Short Cutoff Edges |
| title_full | Two New Nonaborates with {B<sub>9</sub>} Cluster Open-Frameworks and Short Cutoff Edges |
| title_fullStr | Two New Nonaborates with {B<sub>9</sub>} Cluster Open-Frameworks and Short Cutoff Edges |
| title_full_unstemmed | Two New Nonaborates with {B<sub>9</sub>} Cluster Open-Frameworks and Short Cutoff Edges |
| title_short | Two New Nonaborates with {B<sub>9</sub>} Cluster Open-Frameworks and Short Cutoff Edges |
| title_sort | two new nonaborates with b sub 9 sub cluster open frameworks and short cutoff edges |
| topic | metal borates oxoboron cluster solvothermal syntheses short cutoff edges |
| url | https://www.mdpi.com/1420-3049/27/16/5279 |
| work_keys_str_mv | AT chonganchen twonewnonaborateswithbsub9subclusteropenframeworksandshortcutoffedges AT guoyuyang twonewnonaborateswithbsub9subclusteropenframeworksandshortcutoffedges |