A co-crystallised cobalt(II) cluster of pyridinedicarboxylic acid (PDC) as a luminescent material for selective sensing of methanol
A luminescent Cobalt(II) co-crystal [Co13(PDC)16(H2O)24.7H2O] 1 (where H2PDC = 2,6-pyridinedicarboxylic acid) have been prepared by oven-heating and slow evaporation of solvent. Single crystal X-ray diffraction (SCXRD) analysis revealed that 1 is a mixture of complexes that crystallizes in the tricl...
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2022
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| Online Access: | https://doi.org/10.1007/s10895-021-02746-9 http://hdl.handle.net/11408/4703 |
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| author | Olayemi, Victoria T. Tella, Adedibu C. Adekola, Folahan A. Clayton, Hadley S. Oladipo, Adetola C. Mehlana, Gift Ogunlaja, Adeniyi S. Oluwafemi, Oluwatobi S. Ogar, Joseph O. Argent, Stephen P. Mokaya, Robert |
| author_facet | Olayemi, Victoria T. Tella, Adedibu C. Adekola, Folahan A. Clayton, Hadley S. Oladipo, Adetola C. Mehlana, Gift Ogunlaja, Adeniyi S. Oluwafemi, Oluwatobi S. Ogar, Joseph O. Argent, Stephen P. Mokaya, Robert |
| author_sort | Olayemi, Victoria T. |
| collection | DSpace |
| description | A luminescent Cobalt(II) co-crystal [Co13(PDC)16(H2O)24.7H2O] 1 (where H2PDC = 2,6-pyridinedicarboxylic acid) have been prepared by oven-heating and slow evaporation of solvent. Single crystal X-ray diffraction (SCXRD) analysis revealed that 1 is a mixture of complexes that crystallizes in the triclinic space group P-1 and the geometry around the Co(II) ions is octahedral. The structure is extensively imbued with hydrogen bonding that helps in stabilizing the complex. Thermogravimetric analysis indicates that 1 is thermally stable up to 364 οC. The luminescence properties of 1 revealed a strong emission centered at 437 nm (λex = 345 nm) assigned to ligand to metal charge transfer (LMCT). The luminescence sensing of 1 towards volatile organic molecules were also examined. However, 1 displayed a turn off towards methanol compared to other molecules with high quenching efficiency and low limit of detection (3.5 × 10−4 vol%). The results show excellent selectively and high sensitivity. Powder X-ray diffraction studies revealed that the structural integrity of the complex was maintained after exposure to methanol vapour. Theoretical studies also revealed small binding energy (−413.2 au) and low energy gap (1.19) for 1-CH3OH adduct. |
| format | Article |
| id | ir-11408-4703 |
| institution | My University |
| language | English |
| publishDate | 2022 |
| publisher | Springer |
| record_format | dspace |
| spelling | ir-11408-47032022-06-27T13:49:06Z A co-crystallised cobalt(II) cluster of pyridinedicarboxylic acid (PDC) as a luminescent material for selective sensing of methanol Olayemi, Victoria T. Tella, Adedibu C. Adekola, Folahan A. Clayton, Hadley S. Oladipo, Adetola C. Mehlana, Gift Ogunlaja, Adeniyi S. Oluwafemi, Oluwatobi S. Ogar, Joseph O. Argent, Stephen P. Mokaya, Robert Luminescence Single crystal XRD Solvothermal Triclinic Quenching A luminescent Cobalt(II) co-crystal [Co13(PDC)16(H2O)24.7H2O] 1 (where H2PDC = 2,6-pyridinedicarboxylic acid) have been prepared by oven-heating and slow evaporation of solvent. Single crystal X-ray diffraction (SCXRD) analysis revealed that 1 is a mixture of complexes that crystallizes in the triclinic space group P-1 and the geometry around the Co(II) ions is octahedral. The structure is extensively imbued with hydrogen bonding that helps in stabilizing the complex. Thermogravimetric analysis indicates that 1 is thermally stable up to 364 οC. The luminescence properties of 1 revealed a strong emission centered at 437 nm (λex = 345 nm) assigned to ligand to metal charge transfer (LMCT). The luminescence sensing of 1 towards volatile organic molecules were also examined. However, 1 displayed a turn off towards methanol compared to other molecules with high quenching efficiency and low limit of detection (3.5 × 10−4 vol%). The results show excellent selectively and high sensitivity. Powder X-ray diffraction studies revealed that the structural integrity of the complex was maintained after exposure to methanol vapour. Theoretical studies also revealed small binding energy (−413.2 au) and low energy gap (1.19) for 1-CH3OH adduct. 2022-03-16T13:25:12Z 2022-03-16T13:25:12Z 2021 Article 1053-0509 1573-4994 https://doi.org/10.1007/s10895-021-02746-9 http://hdl.handle.net/11408/4703 en Journal of Fluorescence;Vol. 31: p. 1177-1190 open Springer |
| spellingShingle | Luminescence Single crystal XRD Solvothermal Triclinic Quenching Olayemi, Victoria T. Tella, Adedibu C. Adekola, Folahan A. Clayton, Hadley S. Oladipo, Adetola C. Mehlana, Gift Ogunlaja, Adeniyi S. Oluwafemi, Oluwatobi S. Ogar, Joseph O. Argent, Stephen P. Mokaya, Robert A co-crystallised cobalt(II) cluster of pyridinedicarboxylic acid (PDC) as a luminescent material for selective sensing of methanol |
| title | A co-crystallised cobalt(II) cluster of pyridinedicarboxylic acid (PDC) as a luminescent material for selective sensing of methanol |
| title_full | A co-crystallised cobalt(II) cluster of pyridinedicarboxylic acid (PDC) as a luminescent material for selective sensing of methanol |
| title_fullStr | A co-crystallised cobalt(II) cluster of pyridinedicarboxylic acid (PDC) as a luminescent material for selective sensing of methanol |
| title_full_unstemmed | A co-crystallised cobalt(II) cluster of pyridinedicarboxylic acid (PDC) as a luminescent material for selective sensing of methanol |
| title_short | A co-crystallised cobalt(II) cluster of pyridinedicarboxylic acid (PDC) as a luminescent material for selective sensing of methanol |
| title_sort | co-crystallised cobalt(ii) cluster of pyridinedicarboxylic acid (pdc) as a luminescent material for selective sensing of methanol |
| topic | Luminescence Single crystal XRD Solvothermal Triclinic Quenching |
| url | https://doi.org/10.1007/s10895-021-02746-9 http://hdl.handle.net/11408/4703 |
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