{"title":"Crystallization of zinc azole complex incorporated Strandberg-type cluster-based solids: Synthesis, structure and photoluminescence studies","authors":"Raji Chorenjeth Radhakrishnan, Jisha Joseph, Manisha Jadon, Memsy Chiriamkandath Kuriakose, Jency Thomas","doi":"10.1007/s12039-024-02260-y","DOIUrl":null,"url":null,"abstract":"<p>Two new zinc azole complexes incorporated Strandberg-type cluster-based solids, namely (H<i>pz</i>)<sub>6</sub>{Zn(<i>pz</i>)<sub>4</sub>(H<sub>2</sub>O)<sub>2</sub>}[{Zn(<i>pz</i>)<sub>2</sub>P<sub>2</sub>Mo<sub>5</sub>O<sub>23</sub>}<sub>2</sub>]·8H<sub>2</sub>O (<b>1</b>) and (H<i>imi</i>)<sub>4</sub>{Zn(<i>imi</i>)<sub>3</sub>P<sub>2</sub>Mo<sub>5</sub>O<sub>23</sub>}·7H<sub>2</sub>O (<b>2</b>) were crystallized using isomeric azole ligands, i.e., pyrazole (<i>pz</i>) and imidazole (<i>imi</i>), respectively. While solid <b>1</b> crystallized in triclinic system with space group <i>P-</i>1 with cell parameters <i>a</i> = 9.5647(15), <i>b</i> = 12.558(2), <i>c</i> = 20.340(3) Å, <i>α</i> = 75.907(7), <i>β</i> = 84.727(6), <i>γ</i> = 87.525(7)°, Z = 1; <b>2</b> crystallized in orthorhombic system with space group <i>P</i>2<sub>1</sub>2<sub>1</sub>2<sub>1</sub> having cell parameters <i>a</i> = 12.048(3), <i>b</i> = 19.561(5), <i>c</i> = 20.732(5) Å, Z = 4. Both pyrazole and imidazole can form a complex with zinc centres to form an extended solid in <b>1</b> and a derivatized Strandberg-type cluster in <b>2</b>. Interestingly, <b>1</b> is a new supramolecular isomer of previously reported solid viz., (<i>pz</i>)[{Zn(<i>pz</i>)<sub>3</sub>}<sub>3</sub>{P<sub>2</sub>Mo<sub>5</sub>O<sub>23</sub>}]·2H<sub>2</sub>O and<b> 2</b> is the only example wherein a zinc imidazole complex has derivatized a Strandberg-type cluster. Detailed structure analysis of <b>1</b> and <b>2</b> was carried out, and the role of tectons in dictating the self-assembly of these solids was evaluated. In addition, a solid-state photoluminescence study was carried out for <b>1</b> and <b>2</b> at room temperature.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3><p>Two zinc azole complexes incorporated Strandberg-type cluster-based solids and have been crystallized. While <b>1</b> is a new supramolecular isomer of (<i>pz</i>)[{Zn(<i>pz</i>)<sub>3</sub>}<sub>3</sub>{P<sub>2</sub>Mo<sub>5</sub>O<sub>23</sub>}]·2H<sub>2</sub>O;<b> 2</b> is the only example wherein a zinc imidazole complex has derivatized a Strandberg-type cluster. Apart from detailed structural analysis, solid-state photoluminescence of solids has also been investigated. </p>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":null,"pages":null},"PeriodicalIF":1.7000,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Chemical Sciences","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s12039-024-02260-y","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Two new zinc azole complexes incorporated Strandberg-type cluster-based solids, namely (Hpz)6{Zn(pz)4(H2O)2}[{Zn(pz)2P2Mo5O23}2]·8H2O (1) and (Himi)4{Zn(imi)3P2Mo5O23}·7H2O (2) were crystallized using isomeric azole ligands, i.e., pyrazole (pz) and imidazole (imi), respectively. While solid 1 crystallized in triclinic system with space group P-1 with cell parameters a = 9.5647(15), b = 12.558(2), c = 20.340(3) Å, α = 75.907(7), β = 84.727(6), γ = 87.525(7)°, Z = 1; 2 crystallized in orthorhombic system with space group P212121 having cell parameters a = 12.048(3), b = 19.561(5), c = 20.732(5) Å, Z = 4. Both pyrazole and imidazole can form a complex with zinc centres to form an extended solid in 1 and a derivatized Strandberg-type cluster in 2. Interestingly, 1 is a new supramolecular isomer of previously reported solid viz., (pz)[{Zn(pz)3}3{P2Mo5O23}]·2H2O and 2 is the only example wherein a zinc imidazole complex has derivatized a Strandberg-type cluster. Detailed structure analysis of 1 and 2 was carried out, and the role of tectons in dictating the self-assembly of these solids was evaluated. In addition, a solid-state photoluminescence study was carried out for 1 and 2 at room temperature.
Graphical Abstract
Two zinc azole complexes incorporated Strandberg-type cluster-based solids and have been crystallized. While 1 is a new supramolecular isomer of (pz)[{Zn(pz)3}3{P2Mo5O23}]·2H2O; 2 is the only example wherein a zinc imidazole complex has derivatized a Strandberg-type cluster. Apart from detailed structural analysis, solid-state photoluminescence of solids has also been investigated.
期刊介绍：
Journal of Chemical Sciences is a monthly journal published by the Indian Academy of Sciences. It formed part of the original Proceedings of the Indian Academy of Sciences – Part A, started by the Nobel Laureate Prof C V Raman in 1934, that was split in 1978 into three separate journals. It was renamed as Journal of Chemical Sciences in 2004. The journal publishes original research articles and rapid communications, covering all areas of chemical sciences. A significant feature of the journal is its special issues, brought out from time to time, devoted to conference symposia/proceedings in frontier areas of the subject, held not only in India but also in other countries.
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