Impact of ligand functionalization on the structure of strontium MOFs prepared in a deep eutectic solvent.
Saved in:
| Title: | Impact of ligand functionalization on the structure of strontium MOFs prepared in a deep eutectic solvent. |
|---|---|
| Authors: | Teixeira, Michaël1 (AUTHOR), Baudron, Stéphane A.1 (AUTHOR) sbaudron@unistra.fr |
| Source: | CrystEngComm. 8/28/2025, Vol. 27 Issue 32, p5421-5430. 10p. |
| Subjects: | Metal-organic frameworks, Strontium compounds, Ligands (Biochemistry), Optical properties, Carboxylic acid derivatives, Ionic liquids, Luminescence |
| Abstract: | The 1 : 2 choline chloride : 2-imidazolidinone (e-urea) deep eutectic solvent (DES) was employed for the ionothermal synthesis of strontium-based metal–organic frameworks (Sr-MOFs) using eight dicarboxylic acid-based ligands with varying relative orientations of the two coordinating moieties. With the four linear ligands based on the 2,5-difunctionalized terephthalic acid backbone, the nature of the atom/group at these sites (hydrogen, bromine, trifluoromethyl or hydroxyl) was shown to impact the nature of the secondary building unit (SBU) of the three-dimensional MOFs isolated and characterized by single-crystal X-ray diffraction. Modifying the exocyclic bond angle of the dicarboxylate linker was found to affect both the SBU and dimensionality of the coordination polymer. While the thiophene-based ligand afforded a two-dimensional arrangement, a three-dimensional organization was observed with the furan-based system and a one-dimensional coordination polymer with the isophthalic derivative. Reticulation of the latter system into a three-dimensional MOF was successfully undertaken by the use of the 3,3′,5,5′-azobenzenetetracarboxylic acid ligand comprising two bridged isophthalic acid units, highlighting the robustness of the SBU, in this case. The eight Sr-MOFs obtained feature e-urea molecules bound to the metal cation via coordination of the carbonyl unit assisted by hydrogen bonding of the neighbouring NH groups. These coordinated solvent molecules were found to occupy the pores and could unfortunately not be removed via thermal activation towards exploitation of the potential porosity. The optical properties of the Sr-MOFs were characterized by absorption and emission spectroscopy. The Sr-MOF based on the 2,5-dihydroxyterephthalic acid ligand was determined to be luminescent (λem = 575 nm) with a 26% quantum yield in the crystalline state, upon excitation at 360 nm. [ABSTRACT FROM AUTHOR] |
| Copyright of CrystEngComm is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 187243514 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Impact of ligand functionalization on the structure of strontium MOFs prepared in a deep eutectic solvent. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Teixeira%2C+Michaël%22">Teixeira, Michaël</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Baudron%2C+Stéphane+A%2E%22">Baudron, Stéphane A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sbaudron@unistra.fr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22CrystEngComm%22">CrystEngComm</searchLink>. 8/28/2025, Vol. 27 Issue 32, p5421-5430. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Metal-organic+frameworks%22">Metal-organic frameworks</searchLink><br /><searchLink fieldCode="DE" term="%22Strontium+compounds%22">Strontium compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Ligands+%28Biochemistry%29%22">Ligands (Biochemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+properties%22">Optical properties</searchLink><br /><searchLink fieldCode="DE" term="%22Carboxylic+acid+derivatives%22">Carboxylic acid derivatives</searchLink><br /><searchLink fieldCode="DE" term="%22Ionic+liquids%22">Ionic liquids</searchLink><br /><searchLink fieldCode="DE" term="%22Luminescence%22">Luminescence</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The 1 : 2 choline chloride : 2-imidazolidinone (e-urea) deep eutectic solvent (DES) was employed for the ionothermal synthesis of strontium-based metal–organic frameworks (Sr-MOFs) using eight dicarboxylic acid-based ligands with varying relative orientations of the two coordinating moieties. With the four linear ligands based on the 2,5-difunctionalized terephthalic acid backbone, the nature of the atom/group at these sites (hydrogen, bromine, trifluoromethyl or hydroxyl) was shown to impact the nature of the secondary building unit (SBU) of the three-dimensional MOFs isolated and characterized by single-crystal X-ray diffraction. Modifying the exocyclic bond angle of the dicarboxylate linker was found to affect both the SBU and dimensionality of the coordination polymer. While the thiophene-based ligand afforded a two-dimensional arrangement, a three-dimensional organization was observed with the furan-based system and a one-dimensional coordination polymer with the isophthalic derivative. Reticulation of the latter system into a three-dimensional MOF was successfully undertaken by the use of the 3,3′,5,5′-azobenzenetetracarboxylic acid ligand comprising two bridged isophthalic acid units, highlighting the robustness of the SBU, in this case. The eight Sr-MOFs obtained feature e-urea molecules bound to the metal cation via coordination of the carbonyl unit assisted by hydrogen bonding of the neighbouring NH groups. These coordinated solvent molecules were found to occupy the pores and could unfortunately not be removed via thermal activation towards exploitation of the potential porosity. The optical properties of the Sr-MOFs were characterized by absorption and emission spectroscopy. The Sr-MOF based on the 2,5-dihydroxyterephthalic acid ligand was determined to be luminescent (λem = 575 nm) with a 26% quantum yield in the crystalline state, upon excitation at 360 nm. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of CrystEngComm is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=187243514 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1039/d5ce00497g Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 5421 Subjects: – SubjectFull: Metal-organic frameworks Type: general – SubjectFull: Strontium compounds Type: general – SubjectFull: Ligands (Biochemistry) Type: general – SubjectFull: Optical properties Type: general – SubjectFull: Carboxylic acid derivatives Type: general – SubjectFull: Ionic liquids Type: general – SubjectFull: Luminescence Type: general Titles: – TitleFull: Impact of ligand functionalization on the structure of strontium MOFs prepared in a deep eutectic solvent. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Teixeira, Michaël – PersonEntity: Name: NameFull: Baudron, Stéphane A. IsPartOfRelationships: – BibEntity: Dates: – D: 28 M: 08 Text: 8/28/2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 14668033 Numbering: – Type: volume Value: 27 – Type: issue Value: 32 Titles: – TitleFull: CrystEngComm Type: main |
| ResultId | 1 |
